XPRSprob

java.lang.Object
- com.dashoptimization.XPRSobject
- - com.dashoptimization.XPRSprob

All Implemented Interfaces:

java.lang.AutoCloseable

Direct Known Subclasses:

XpressProblem
```
public class XPRSprob
extends XPRSobject
```
Represents a problem and an optimizer instance.

Nested Class Summary

Modifier and Type	Class	Description
`class`	`XPRSprob.AbstractUserFunction`	Base class for user functions.
`static class`	`XPRSprob.AttributeInfo`	Attribute descriptor for `getAttribInfo(String)`.
`class`	`XPRSprob.Attributes`	Class to access attributes.
`static class`	`XPRSprob.BasisValue`	Return value for `getBasisVal(int,int)`.
`static class`	`XPRSprob.CannotPerformOperationException`	Exception raised when an operation is attempted for which the model cannot be in a presolved state or in a callback.
`static class`	`XPRSprob.CannotReferenceVariablesException`	Exception raised when a constraint references `Variable` instances while it should only reference indices.
`static class`	`XPRSprob.ControlInfo`	Control descriptor for `getControlInfo(String)`.
`class`	`XPRSprob.Controls`	Class to access controls.
`static class`	`XPRSprob.GeneralConstraintInfo`	Return value for `getGenCons(int, int)`.
`static class`	`XPRSprob.GlobalInfo`	Deprecated. Deprecated since 40.01, use `MIPEntityInfo` instead.
`static class`	`XPRSprob.IISData`	Return value for `getIISData(int)`;
`static class`	`XPRSprob.IISStatusInfo`	Return value for `IISStatus()`.
`static class`	`XPRSprob.InfeasInfo`	Return value for `getInfeas()` and `getScaledInfeas()`.
`static class`	`XPRSprob.InvalidStateException`	Exception that is raised if the problem is not in the correct state.
`class`	`XPRSprob.MapDeltaFunction`	An `R -> R` function that also provides the derivative.
`static interface`	`XPRSprob.MapDeltaFunctor`
`class`	`XPRSprob.MapFunction`	An `R -> R` function.
`static interface`	`XPRSprob.MapFunctor`
`static class`	`XPRSprob.MatrixInfo`	Return value for `getCols(int, int)`, `getRows(int, int)`, `getMQObj(int, int)`.
`static class`	`XPRSprob.MatrixTriplets`	Matrix specified by a list of triplets.
`class`	`XPRSprob.MIPEntityInfo`	Return value for `getMIPEntities()`, `getDiscreteCols()`, `getSetDefinitions()`.
`class`	`XPRSprob.MultiMapDeltaFunction`	An `R^n -> R^m` function that also provides partial derivatives.
`static interface`	`XPRSprob.MultiMapDeltaFunctor`
`class`	`XPRSprob.MultiMapFunction`	An `R^n -> R^m` function.
`static interface`	`XPRSprob.MultiMapFunctor`
`static class`	`XPRSprob.PWLInfo`	Return value for `getPwlCons(int, int)`.
`static class`	`XPRSprob.RowInfo`	Sparse row information.
`static class`	`XPRSprob.Solution`	Solution data.
`static class`	`XPRSprob.SolVal`	Deprecated. Deprecated since 44.00, use one of `getSolution`, `getCallbackSolution`, `getSlacks`, `getCallbackSlacks`, `getRedCosts`, `getCallbackRedCosts`, `getDuals`, `getCallbackDuals` instead.
`static class`	`XPRSprob.StatusSolution`	Solution information that also contains a status value.
`class`	`XPRSprob.VecMapDeltaFunction`	An `R^n -> R` function that also provides partial derivatives.
`static interface`	`XPRSprob.VecMapDeltaFunctor`
`class`	`XPRSprob.VecMapFunction`	An `R^n -> R` function.
`static interface`	`XPRSprob.VecMapFunctor`

Field Summary

Modifier and Type	Field	Description
`static char`	`EQ`	Constraint sense for `==` constraints.
`static char`	`GEQ`	Constraint sense for `>=` constraints.
`static char`	`LEQ`	Constraint sense for `<=` constraints.

Constructor Summary

Constructor	Description
`XPRSprob()`	Creates a new, empty problem.
`XPRSprob(java.lang.String path)`	Creates a new, empty problem.

Method Summary

Modifier and Type	Method	Description
`void`	`addAfterObjectiveListener(XPRSafterObjectiveListener listener)`	Add a listener for the AfterObjective callback.
`void`	`addAfterObjectiveListener(XPRSafterObjectiveListener listener, int priority)`	Add a listener for the AfterObjective callback.
`void`	`addAfterObjectiveListener(XPRSafterObjectiveListener listener, java.lang.Object data)`	Add a listener for the AfterObjective callback.
`void`	`addAfterObjectiveListener(XPRSafterObjectiveListener listener, java.lang.Object data, int priority)`	Add a listener for the AfterObjective callback.
`void`	`addBarIterationListener(XPRSbarIterationListener listener)`	Add a listener for the BarIteration callback.
`void`	`addBarIterationListener(XPRSbarIterationListener listener, int priority)`	Add a listener for the BarIteration callback.
`void`	`addBarIterationListener(XPRSbarIterationListener listener, java.lang.Object data)`	Add a listener for the BarIteration callback.
`void`	`addBarIterationListener(XPRSbarIterationListener listener, java.lang.Object data, int priority)`	Add a listener for the BarIteration callback.
`void`	`addBarLogListener(XPRSbarLogListener listener)`	Add a listener for the BarLog callback.
`void`	`addBarLogListener(XPRSbarLogListener listener, int priority)`	Add a listener for the BarLog callback.
`void`	`addBarLogListener(XPRSbarLogListener listener, java.lang.Object data)`	Add a listener for the BarLog callback.
`void`	`addBarLogListener(XPRSbarLogListener listener, java.lang.Object data, int priority)`	Add a listener for the BarLog callback.
`void`	`addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener)`	Add a listener for the BeforeObjective callback.
`void`	`addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener, int priority)`	Add a listener for the BeforeObjective callback.
`void`	`addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener, java.lang.Object data)`	Add a listener for the BeforeObjective callback.
`void`	`addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener, java.lang.Object data, int priority)`	Add a listener for the BeforeObjective callback.
`void`	`addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener)`	Add a listener for the ChangeBranchObject callback.
`void`	`addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener, int priority)`	Add a listener for the ChangeBranchObject callback.
`void`	`addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener, java.lang.Object data)`	Add a listener for the ChangeBranchObject callback.
`void`	`addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener, java.lang.Object data, int priority)`	Add a listener for the ChangeBranchObject callback.
`void`	`addCheckTimeListener(XPRScheckTimeListener listener)`	Add a listener for the CheckTime callback.
`void`	`addCheckTimeListener(XPRScheckTimeListener listener, int priority)`	Add a listener for the CheckTime callback.
`void`	`addCheckTimeListener(XPRScheckTimeListener listener, java.lang.Object data)`	Add a listener for the CheckTime callback.
`void`	`addCheckTimeListener(XPRScheckTimeListener listener, java.lang.Object data, int priority)`	Add a listener for the CheckTime callback.
`int`	`addCol(double obj, double lb, double ub)`	Deprecated. since 45.00, use `addColumn()` instead
`int`	`addCol(double obj, double lb, double ub, char type)`	Deprecated. since 45.00, use `addColumn()` instead
`int`	`addCol(double obj, double lb, double ub, char type, int[] rowind, double[] rowval)`	Deprecated. since 45.00, use `addColumn()` instead
`int`	`addCol(double obj, double lb, double ub, char type, int[] rowind, double[] rowval, java.lang.String name)`	Deprecated. since 45.00, use `addColumn()` instead
`int`	`addCol(double obj, double lb, double ub, char type, java.lang.String name)`	Deprecated. since 45.00, use `addColumn()` instead
`int`	`addCol(double obj, double lb, double ub, java.lang.String name)`	Deprecated. since 45.00, use `addColumn()` instead
`void`	`addCols(int ncols, int ncoefs, double[] objcoef, int[] start, int[] rowind, double[] rowcoef, double[] lb, double[] ub)`	Adds columns to the optimizer matrix.
`void`	`addCols(int ncols, long ncoefs, double[] objcoef, long[] start, int[] rowind, double[] rowcoef, double[] lb, double[] ub)`	Adds columns to the optimizer matrix.
`int`	`addColumn(double lb, double ub, ColumnType type, java.lang.String name)`	Add a single column to this problem.
`VariableBuilder.ColumnArrayBuilder`	`addColumns(int dim)`	Create an 1-dimensional array of columns.
`VariableBuilder.ColumnArray2Builder`	`addColumns(int dim1, int dim2)`	Create an 2-dimensional array of columns.
`VariableBuilder.ColumnArray3Builder`	`addColumns(int dim1, int dim2, int dim3)`	Create an 3-dimensional array of columns.
`VariableBuilder.ColumnArray4Builder`	`addColumns(int dim1, int dim2, int dim3, int dim4)`	Create an 4-dimensional array of columns.
`VariableBuilder.ColumnArray5Builder`	`addColumns(int dim1, int dim2, int dim3, int dim4, int dim5)`	Create an 5-dimensional array of columns.
`<K1> VariableBuilder.ColumnMapBuilder<K1>`	`addColumns(java.lang.Iterable<K1> iterable1)`	Create an 1-dimensional map of columns.
`<K1,K2> VariableBuilder.ColumnMap2Builder<K1,K2>`	`addColumns(java.lang.Iterable<K1> iterable1, java.lang.Iterable<K2> iterable2)`	Create an 2-dimensional map of columns.
`<K1,K2,K3> VariableBuilder.ColumnMap3Builder<K1,K2,K3>`	`addColumns(java.lang.Iterable<K1> iterable1, java.lang.Iterable<K2> iterable2, java.lang.Iterable<K3> iterable3)`	Create an 3-dimensional map of columns.
`<K1,K2,K3,K4> VariableBuilder.ColumnMap4Builder<K1,K2,K3,K4>`	`addColumns(java.lang.Iterable<K1> iterable1, java.lang.Iterable<K2> iterable2, java.lang.Iterable<K3> iterable3, java.lang.Iterable<K4> iterable4)`	Create an 4-dimensional map of columns.
`<K1,K2,K3,K4,K5> VariableBuilder.ColumnMap5Builder<K1,K2,K3,K4,K5>`	`addColumns(java.lang.Iterable<K1> iterable1, java.lang.Iterable<K2> iterable2, java.lang.Iterable<K3> iterable3, java.lang.Iterable<K4> iterable4, java.lang.Iterable<K5> iterable5)`	Create an 5-dimensional map of columns.
`<K1> VariableBuilder.ColumnMapBuilder<K1>`	`addColumns(java.util.stream.Stream<K1> strm)`	Create an 1-dimensional map of columns.
`<K1> VariableBuilder.ColumnMapBuilder<K1>`	`addColumns(K1[] arr1)`	Create an 1-dimensional map of columns.
`<K1,K2> VariableBuilder.ColumnMap2Builder<K1,K2>`	`addColumns(K1[] arr1, K2[] arr2)`	Create an 2-dimensional map of columns.
`<K1,K2,K3> VariableBuilder.ColumnMap3Builder<K1,K2,K3>`	`addColumns(K1[] arr1, K2[] arr2, K3[] arr3)`	Create an 3-dimensional map of columns.
`<K1,K2,K3,K4> VariableBuilder.ColumnMap4Builder<K1,K2,K3,K4>`	`addColumns(K1[] arr1, K2[] arr2, K3[] arr3, K4[] arr4)`	Create an 4-dimensional map of columns.
`<K1,K2,K3,K4,K5> VariableBuilder.ColumnMap5Builder<K1,K2,K3,K4,K5>`	`addColumns(K1[] arr1, K2[] arr2, K3[] arr3, K4[] arr4, K5[] arr5)`	Create an 5-dimensional map of columns.
`void`	`addComputeRestartListener(XPRScomputeRestartListener listener)`	Add a listener for the ComputeRestart callback.
`void`	`addComputeRestartListener(XPRScomputeRestartListener listener, int priority)`	Add a listener for the ComputeRestart callback.
`void`	`addComputeRestartListener(XPRScomputeRestartListener listener, java.lang.Object data)`	Add a listener for the ComputeRestart callback.
`void`	`addComputeRestartListener(XPRScomputeRestartListener listener, java.lang.Object data, int priority)`	Add a listener for the ComputeRestart callback.
`void`	`addCut(int cuttype, int[] colind, double[] colval, char rowtype, double rhs)`	Add a single cut to the problem.
`void`	`addCut(int cuttype, XPRSprob.RowInfo cut)`	Add a single cut to the problem.
`void`	`addCutLogListener(XPRScutLogListener listener)`	Add a listener for the CutLog callback.
`void`	`addCutLogListener(XPRScutLogListener listener, int priority)`	Add a listener for the CutLog callback.
`void`	`addCutLogListener(XPRScutLogListener listener, java.lang.Object data)`	Add a listener for the CutLog callback.
`void`	`addCutLogListener(XPRScutLogListener listener, java.lang.Object data, int priority)`	Add a listener for the CutLog callback.
`void`	`addCutRoundListener(XPRScutRoundListener listener)`	Add a listener for the CutRound callback.
`void`	`addCutRoundListener(XPRScutRoundListener listener, int priority)`	Add a listener for the CutRound callback.
`void`	`addCutRoundListener(XPRScutRoundListener listener, java.lang.Object data)`	Add a listener for the CutRound callback.
`void`	`addCutRoundListener(XPRScutRoundListener listener, java.lang.Object data, int priority)`	Add a listener for the CutRound callback.
`void`	`addCuts(int ncuts, int[] cuttype, byte[] rowtype, double[] rhs, int[] start, int[] colind, double[] cutcoef)`	Adds cuts directly to the matrix at the current node.
`void`	`addCuts(int ncuts, int[] cuttype, byte[] rowtype, double[] rhs, long[] start, int[] colind, double[] cutcoef)`	Adds cuts directly to the matrix at the current node.
`void`	`addDestroyMTListener(XPRSdestroyMTListener listener)`	Add a listener for the DestroyMT callback.
`void`	`addDestroyMTListener(XPRSdestroyMTListener listener, int priority)`	Add a listener for the DestroyMT callback.
`void`	`addDestroyMTListener(XPRSdestroyMTListener listener, java.lang.Object data)`	Add a listener for the DestroyMT callback.
`void`	`addDestroyMTListener(XPRSdestroyMTListener listener, java.lang.Object data, int priority)`	Add a listener for the DestroyMT callback.
`void`	`addGapNotifyListener(XPRSgapNotifyListener listener)`	Add a listener for the GapNotify callback.
`void`	`addGapNotifyListener(XPRSgapNotifyListener listener, int priority)`	Add a listener for the GapNotify callback.
`void`	`addGapNotifyListener(XPRSgapNotifyListener listener, java.lang.Object data)`	Add a listener for the GapNotify callback.
`void`	`addGapNotifyListener(XPRSgapNotifyListener listener, java.lang.Object data, int priority)`	Add a listener for the GapNotify callback.
`void`	`addGenCons(int ncons, int ncols, int nvals, XPRSenumerations.GenConsType[] contype, int[] resultant, int[] colstart, int[] colind, int[] valstart, double[] val)`	Adds one or more general constraints to the problem.
`void`	`addGenCons(int ncons, long ncols, long nvals, XPRSenumerations.GenConsType[] contype, int[] resultant, long[] colstart, int[] colind, long[] valstart, double[] val)`	Adds one or more general constraints to the problem.
`void`	`addInfNodeListener(XPRSinfNodeListener listener)`	Add a listener for the InfNode callback.
`void`	`addInfNodeListener(XPRSinfNodeListener listener, int priority)`	Add a listener for the InfNode callback.
`void`	`addInfNodeListener(XPRSinfNodeListener listener, java.lang.Object data)`	Add a listener for the InfNode callback.
`void`	`addInfNodeListener(XPRSinfNodeListener listener, java.lang.Object data, int priority)`	Add a listener for the InfNode callback.
`void`	`addIntSolListener(XPRSintSolListener listener)`	Add a listener for the IntSol callback.
`void`	`addIntSolListener(XPRSintSolListener listener, int priority)`	Add a listener for the IntSol callback.
`void`	`addIntSolListener(XPRSintSolListener listener, java.lang.Object data)`	Add a listener for the IntSol callback.
`void`	`addIntSolListener(XPRSintSolListener listener, java.lang.Object data, int priority)`	Add a listener for the IntSol callback.
`void`	`addLpLogListener(XPRSlpLogListener listener)`	Add a listener for the LpLog callback.
`void`	`addLpLogListener(XPRSlpLogListener listener, int priority)`	Add a listener for the LpLog callback.
`void`	`addLpLogListener(XPRSlpLogListener listener, java.lang.Object data)`	Add a listener for the LpLog callback.
`void`	`addLpLogListener(XPRSlpLogListener listener, java.lang.Object data, int priority)`	Add a listener for the LpLog callback.
`void`	`addManagedCuts(int globalvalid, int ncuts, byte[] rowtype, double[] rhs, int[] start, int[] colind, double[] cutcoef)`	Adds cuts to the Optimizer's internal cut pool from within the cutround callback set by `addCbCutRound`.
`void`	`addManagedCuts(int globalvalid, int ncuts, byte[] rowtype, double[] rhs, long[] start, int[] colind, double[] cutcoef)`	Adds cuts to the Optimizer's internal cut pool from within the cutround callback set by `addCbCutRound`.
`void`	`addMessageListener(XPRSmessageListener listener)`	Add a listener for the Message callback.
`void`	`addMessageListener(XPRSmessageListener listener, int priority)`	Add a listener for the Message callback.
`void`	`addMessageListener(XPRSmessageListener listener, java.lang.Object data)`	Add a listener for the Message callback.
`void`	`addMessageListener(XPRSmessageListener listener, java.lang.Object data, int priority)`	Add a listener for the Message callback.
`void`	`addMipLogListener(XPRSmipLogListener listener)`	Add a listener for the MipLog callback.
`void`	`addMipLogListener(XPRSmipLogListener listener, int priority)`	Add a listener for the MipLog callback.
`void`	`addMipLogListener(XPRSmipLogListener listener, java.lang.Object data)`	Add a listener for the MipLog callback.
`void`	`addMipLogListener(XPRSmipLogListener listener, java.lang.Object data, int priority)`	Add a listener for the MipLog callback.
`void`	`addMipSol(double[] val, int[] ind)`	Add a new MIP solution.
`void`	`addMipSol(double[] val, int[] ind, java.lang.String name)`	Add a new MIP solution.
`void`	`addMipSol(int length, double[] solval, int[] colind, java.lang.String name)`	Adds a new feasible, infeasible or partial MIP solution for the problem to the Optimizer.
`void`	`addMipThreadListener(XPRSmipThreadListener listener)`	Add a listener for the MipThread callback.
`void`	`addMipThreadListener(XPRSmipThreadListener listener, int priority)`	Add a listener for the MipThread callback.
`void`	`addMipThreadListener(XPRSmipThreadListener listener, java.lang.Object data)`	Add a listener for the MipThread callback.
`void`	`addMipThreadListener(XPRSmipThreadListener listener, java.lang.Object data, int priority)`	Add a listener for the MipThread callback.
`void`	`addMsgHandlerListener(XPRSmsgHandlerListener listener)`	Add a listener for the MsgHandler callback.
`void`	`addMsgHandlerListener(XPRSmsgHandlerListener listener, int priority)`	Add a listener for the MsgHandler callback.
`void`	`addMsgHandlerListener(XPRSmsgHandlerListener listener, java.lang.Object data)`	Add a listener for the MsgHandler callback.
`void`	`addMsgHandlerListener(XPRSmsgHandlerListener listener, java.lang.Object data, int priority)`	Add a listener for the MsgHandler callback.
`void`	`addMsJobEndListener(XPRSmsJobEndListener listener)`	Add a listener for the MsJobEnd callback.
`void`	`addMsJobEndListener(XPRSmsJobEndListener listener, int priority)`	Add a listener for the MsJobEnd callback.
`void`	`addMsJobEndListener(XPRSmsJobEndListener listener, java.lang.Object data)`	Add a listener for the MsJobEnd callback.
`void`	`addMsJobEndListener(XPRSmsJobEndListener listener, java.lang.Object data, int priority)`	Add a listener for the MsJobEnd callback.
`void`	`addMsJobStartListener(XPRSmsJobStartListener listener)`	Add a listener for the MsJobStart callback.
`void`	`addMsJobStartListener(XPRSmsJobStartListener listener, int priority)`	Add a listener for the MsJobStart callback.
`void`	`addMsJobStartListener(XPRSmsJobStartListener listener, java.lang.Object data)`	Add a listener for the MsJobStart callback.
`void`	`addMsJobStartListener(XPRSmsJobStartListener listener, java.lang.Object data, int priority)`	Add a listener for the MsJobStart callback.
`void`	`addMsWinnerListener(XPRSmsWinnerListener listener)`	Add a listener for the MsWinner callback.
`void`	`addMsWinnerListener(XPRSmsWinnerListener listener, int priority)`	Add a listener for the MsWinner callback.
`void`	`addMsWinnerListener(XPRSmsWinnerListener listener, java.lang.Object data)`	Add a listener for the MsWinner callback.
`void`	`addMsWinnerListener(XPRSmsWinnerListener listener, java.lang.Object data, int priority)`	Add a listener for the MsWinner callback.
`void`	`addNames(int type, java.lang.String[] names, int first, int last)`	Add names to model.
`void`	`addNames(XPRSenumerations.Namespaces type, java.lang.String[] names, int first, int last)`	Add names to model.
`void`	`addNewnodeListener(XPRSnewnodeListener listener)`	Add a listener for the Newnode callback.
`void`	`addNewnodeListener(XPRSnewnodeListener listener, int priority)`	Add a listener for the Newnode callback.
`void`	`addNewnodeListener(XPRSnewnodeListener listener, java.lang.Object data)`	Add a listener for the Newnode callback.
`void`	`addNewnodeListener(XPRSnewnodeListener listener, java.lang.Object data, int priority)`	Add a listener for the Newnode callback.
`void`	`addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener)`	Add a listener for the NlpCoefEvalError callback.
`void`	`addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener, int priority)`	Add a listener for the NlpCoefEvalError callback.
`void`	`addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener, java.lang.Object data)`	Add a listener for the NlpCoefEvalError callback.
`void`	`addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener, java.lang.Object data, int priority)`	Add a listener for the NlpCoefEvalError callback.
`void`	`addNodeCutoffListener(XPRSnodeCutoffListener listener)`	Add a listener for the NodeCutoff callback.
`void`	`addNodeCutoffListener(XPRSnodeCutoffListener listener, int priority)`	Add a listener for the NodeCutoff callback.
`void`	`addNodeCutoffListener(XPRSnodeCutoffListener listener, java.lang.Object data)`	Add a listener for the NodeCutoff callback.
`void`	`addNodeCutoffListener(XPRSnodeCutoffListener listener, java.lang.Object data, int priority)`	Add a listener for the NodeCutoff callback.
`void`	`addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener)`	Add a listener for the NodeLPSolved callback.
`void`	`addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener, int priority)`	Add a listener for the NodeLPSolved callback.
`void`	`addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener, java.lang.Object data)`	Add a listener for the NodeLPSolved callback.
`void`	`addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener, java.lang.Object data, int priority)`	Add a listener for the NodeLPSolved callback.
`void`	`addObj(int ncols, int[] colind, double[] objcoef, int priority, double weight)`	Appends an objective function with the given coefficients to a multi-objective problem.
`void`	`addOptNodeListener(XPRSoptNodeListener listener)`	Add a listener for the OptNode callback.
`void`	`addOptNodeListener(XPRSoptNodeListener listener, int priority)`	Add a listener for the OptNode callback.
`void`	`addOptNodeListener(XPRSoptNodeListener listener, java.lang.Object data)`	Add a listener for the OptNode callback.
`void`	`addOptNodeListener(XPRSoptNodeListener listener, java.lang.Object data, int priority)`	Add a listener for the OptNode callback.
`void`	`addPreIntsolListener(XPRSpreIntsolListener listener)`	Add a listener for the PreIntsol callback.
`void`	`addPreIntsolListener(XPRSpreIntsolListener listener, int priority)`	Add a listener for the PreIntsol callback.
`void`	`addPreIntsolListener(XPRSpreIntsolListener listener, java.lang.Object data)`	Add a listener for the PreIntsol callback.
`void`	`addPreIntsolListener(XPRSpreIntsolListener listener, java.lang.Object data, int priority)`	Add a listener for the PreIntsol callback.
`void`	`addPreNodeListener(XPRSpreNodeListener listener)`	Add a listener for the PreNode callback.
`void`	`addPreNodeListener(XPRSpreNodeListener listener, int priority)`	Add a listener for the PreNode callback.
`void`	`addPreNodeListener(XPRSpreNodeListener listener, java.lang.Object data)`	Add a listener for the PreNode callback.
`void`	`addPreNodeListener(XPRSpreNodeListener listener, java.lang.Object data, int priority)`	Add a listener for the PreNode callback.
`void`	`addPresolveListener(XPRSpresolveListener listener)`	Add a listener for the Presolve callback.
`void`	`addPresolveListener(XPRSpresolveListener listener, int priority)`	Add a listener for the Presolve callback.
`void`	`addPresolveListener(XPRSpresolveListener listener, java.lang.Object data)`	Add a listener for the Presolve callback.
`void`	`addPresolveListener(XPRSpresolveListener listener, java.lang.Object data, int priority)`	Add a listener for the Presolve callback.
`void`	`addPwlCons(int npwls, int npoints, int[] colind, int[] resultant, int[] start, double[] xval, double[] yval)`	Adds one or more piecewise linear constraints to the problem.
`void`	`addPwlCons(int npwls, long npoints, int[] colind, int[] resultant, long[] start, double[] xval, double[] yval)`	Adds one or more piecewise linear constraints to the problem.
`void`	`addQMatrix(int row, int ncoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef)`	Adds a new quadratic matrix into a row defined by triplets.
`void`	`addQMatrix(int row, long ncoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef)`	Adds a new quadratic matrix into a row defined by triplets.
`int`	`addRow(int[] colind, double[] colval, char rowtype, double rhs)`	Add a single row to the problem.
`int`	`addRow(int[] colind, double[] colval, char rowtype, double rhs, double rng, java.lang.String name)`	Add a single row to the problem.
`int`	`addRow(int[] colind, double[] colval, char rowtype, double rhs, java.lang.String name)`	Add a single row to the problem.
`int`	`addRow(XPRSprob.RowInfo row)`	Add a single row to the problem.
`int`	`addRow(XPRSprob.RowInfo row, java.lang.String name)`	Add a single row to the problem.
`void`	`addRows(int nrows, int ncoefs, byte[] rowtype, double[] rhs, double[] rng, int[] start, int[] colind, double[] rowcoef)`	Adds rows to the optimizer matrix.
`void`	`addRows(int nrows, int ncoefs, byte[] rowtype, double[] rhs, int[] start, int[] colind, double[] rowcoef)`	Convenience wrapper for `addRows(int, int, byte[], double[], double[], int[], int[], double[])`.
`void`	`addRows(int nrows, long ncoefs, byte[] rowtype, double[] rhs, double[] rng, long[] start, int[] colind, double[] rowcoef)`	Adds rows to the optimizer matrix.
`void`	`addRows(int nrows, long ncoefs, byte[] rowtype, double[] rhs, long[] start, int[] colind, double[] rowcoef)`	Convenience wrapper for `addRows(int, long, byte[], double[], double[], long[], int[], double[])`.
`int`	`addSet(SetType type, int[] elements, double[] weights, java.lang.String name)`	Add a single set constraint to this problem.
`void`	`addSetNames(java.lang.String[] names, int first, int last)`	Deprecated. since 45.00, use `addNames()` with a type of `XPRSenumerations.Namespaces.SET` instead.
`int[]`	`addSets(int count, int[] start, SetType[] type, int[] setind, double[] setref, java.lang.String[] names)`	Create multiple set constraints.
`void`	`addSets(int nsets, int nelems, byte[] settype, int[] start, int[] colind, double[] refval)`	Allows sets to be added to the problem after passing it to the Optimizer using the input routines.
`void`	`addSets(int nsets, long nelems, byte[] settype, long[] start, int[] colind, double[] refval)`	Allows sets to be added to the problem after passing it to the Optimizer using the input routines.
`int[]`	`addSets(SetType[] type, int[][] elements, double[][] weights, java.lang.String[] name)`	Add multiple set constraints to the problem.
`void`	`addSlpCascadeEndListener(XPRSslpCascadeEndListener listener)`	Add a listener for the SlpCascadeEnd callback.
`void`	`addSlpCascadeEndListener(XPRSslpCascadeEndListener listener, int priority)`	Add a listener for the SlpCascadeEnd callback.
`void`	`addSlpCascadeEndListener(XPRSslpCascadeEndListener listener, java.lang.Object data)`	Add a listener for the SlpCascadeEnd callback.
`void`	`addSlpCascadeEndListener(XPRSslpCascadeEndListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpCascadeEnd callback.
`void`	`addSlpCascadeStartListener(XPRSslpCascadeStartListener listener)`	Add a listener for the SlpCascadeStart callback.
`void`	`addSlpCascadeStartListener(XPRSslpCascadeStartListener listener, int priority)`	Add a listener for the SlpCascadeStart callback.
`void`	`addSlpCascadeStartListener(XPRSslpCascadeStartListener listener, java.lang.Object data)`	Add a listener for the SlpCascadeStart callback.
`void`	`addSlpCascadeStartListener(XPRSslpCascadeStartListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpCascadeStart callback.
`void`	`addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener)`	Add a listener for the SlpCascadeVarFail callback.
`void`	`addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener, int priority)`	Add a listener for the SlpCascadeVarFail callback.
`void`	`addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener, java.lang.Object data)`	Add a listener for the SlpCascadeVarFail callback.
`void`	`addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpCascadeVarFail callback.
`void`	`addSlpCascadeVarListener(XPRSslpCascadeVarListener listener)`	Add a listener for the SlpCascadeVar callback.
`void`	`addSlpCascadeVarListener(XPRSslpCascadeVarListener listener, int priority)`	Add a listener for the SlpCascadeVar callback.
`void`	`addSlpCascadeVarListener(XPRSslpCascadeVarListener listener, java.lang.Object data)`	Add a listener for the SlpCascadeVar callback.
`void`	`addSlpCascadeVarListener(XPRSslpCascadeVarListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpCascadeVar callback.
`void`	`addSlpConstructListener(XPRSslpConstructListener listener)`	Add a listener for the SlpConstruct callback.
`void`	`addSlpConstructListener(XPRSslpConstructListener listener, int priority)`	Add a listener for the SlpConstruct callback.
`void`	`addSlpConstructListener(XPRSslpConstructListener listener, java.lang.Object data)`	Add a listener for the SlpConstruct callback.
`void`	`addSlpConstructListener(XPRSslpConstructListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpConstruct callback.
`void`	`addSlpDrColListener(XPRSslpDrColListener listener)`	Add a listener for the SlpDrCol callback.
`void`	`addSlpDrColListener(XPRSslpDrColListener listener, int priority)`	Add a listener for the SlpDrCol callback.
`void`	`addSlpDrColListener(XPRSslpDrColListener listener, java.lang.Object data)`	Add a listener for the SlpDrCol callback.
`void`	`addSlpDrColListener(XPRSslpDrColListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpDrCol callback.
`void`	`addSlpIntSolListener(XPRSslpIntSolListener listener)`	Add a listener for the SlpIntSol callback.
`void`	`addSlpIntSolListener(XPRSslpIntSolListener listener, int priority)`	Add a listener for the SlpIntSol callback.
`void`	`addSlpIntSolListener(XPRSslpIntSolListener listener, java.lang.Object data)`	Add a listener for the SlpIntSol callback.
`void`	`addSlpIntSolListener(XPRSslpIntSolListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpIntSol callback.
`void`	`addSlpIterEndListener(XPRSslpIterEndListener listener)`	Add a listener for the SlpIterEnd callback.
`void`	`addSlpIterEndListener(XPRSslpIterEndListener listener, int priority)`	Add a listener for the SlpIterEnd callback.
`void`	`addSlpIterEndListener(XPRSslpIterEndListener listener, java.lang.Object data)`	Add a listener for the SlpIterEnd callback.
`void`	`addSlpIterEndListener(XPRSslpIterEndListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpIterEnd callback.
`void`	`addSlpIterStartListener(XPRSslpIterStartListener listener)`	Add a listener for the SlpIterStart callback.
`void`	`addSlpIterStartListener(XPRSslpIterStartListener listener, int priority)`	Add a listener for the SlpIterStart callback.
`void`	`addSlpIterStartListener(XPRSslpIterStartListener listener, java.lang.Object data)`	Add a listener for the SlpIterStart callback.
`void`	`addSlpIterStartListener(XPRSslpIterStartListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpIterStart callback.
`void`	`addSlpIterVarListener(XPRSslpIterVarListener listener)`	Add a listener for the SlpIterVar callback.
`void`	`addSlpIterVarListener(XPRSslpIterVarListener listener, int priority)`	Add a listener for the SlpIterVar callback.
`void`	`addSlpIterVarListener(XPRSslpIterVarListener listener, java.lang.Object data)`	Add a listener for the SlpIterVar callback.
`void`	`addSlpIterVarListener(XPRSslpIterVarListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpIterVar callback.
`void`	`addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener)`	Add a listener for the SlpPreUpdateLinearization callback.
`void`	`addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener, int priority)`	Add a listener for the SlpPreUpdateLinearization callback.
`void`	`addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener, java.lang.Object data)`	Add a listener for the SlpPreUpdateLinearization callback.
`void`	`addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener, java.lang.Object data, int priority)`	Add a listener for the SlpPreUpdateLinearization callback.
`void`	`addUserSolNotifyListener(XPRSuserSolNotifyListener listener)`	Add a listener for the UserSolNotify callback.
`void`	`addUserSolNotifyListener(XPRSuserSolNotifyListener listener, int priority)`	Add a listener for the UserSolNotify callback.
`void`	`addUserSolNotifyListener(XPRSuserSolNotifyListener listener, java.lang.Object data)`	Add a listener for the UserSolNotify callback.
`void`	`addUserSolNotifyListener(XPRSuserSolNotifyListener listener, java.lang.Object data, int priority)`	Add a listener for the UserSolNotify callback.
`void`	`alter(java.lang.String filename)`	Deprecated. since 45.00, use functions to directly manipulate matrix data.
`XPRSprob.Attributes`	`attributes()`	Access the attributes of this instance.
`void`	`basisCondition(DoubleHolder p_cond, DoubleHolder p_scaledcond)`	Deprecated. since 38.00, use `basisStability()` instead.
`double`	`basisStability(int type, int norm, boolean ifscaled)`	Compute basis stability.
`double`	`basisStability(int type, int norm, int scaled)`	Convenience wrapper for `basisStability(int,int,int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`basisStability(int type, int norm, int scaled, DoubleHolder p_value)`	Calculates various measures for the stability of the current basis, including the basis condition number.
`int`	`binVar()`	Deprecated. since 43.00, use `addColumn()` instead
`int`	`binVar(java.lang.String name)`	Deprecated. since 43.00, use `addColumn()` instead
`int[]`	`binVarArray(int count, java.util.function.Function<java.lang.Integer,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> int[]`	`binVarArray(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`binVarMap(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`binVarMap(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.String> name, java.util.Map<T,java.lang.Integer> map)`	Deprecated. since 43.00, use `addColumns()` instead
`void`	`bndsa(int ncols, int[] colind, double[] lblower, double[] lbupper, double[] ublower, double[] ubupper)`	Returns upper and lower sensitivity ranges for specified variables' lower and upper bounds.
`void`	`btran(double[] vec)`	Post-multiplies a (row) vector provided by the user by the inverse of the current basis.
`double`	`calcObjective(double[] solution)`	Convenience wrapper for `calcObjective(double[],com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`calcObjective(double[] solution, DoubleHolder p_objval)`	Calculates the objective value of a given solution.
`double`	`calcObjN(int objidx, double[] solution)`	Convenience wrapper for `calcObjN(int,double[],com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`calcObjN(int objidx, double[] solution, DoubleHolder p_objval)`	Calculates the objective value of the given objective function in a multi-objective problem.
`void`	`calcReducedCosts(double[] duals, double[] solution, double[] djs)`	Calculates the reduced cost values for a given (row) dual solution.
`void`	`calcSlacks(double[] solution, double[] slacks)`	Calculates the row slack values for a given solution.
`double`	`calcSolInfo(double[] solution, double[] duals, int property)`	Convenience wrapper for `calcSolInfo(double[],double[],int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`calcSolInfo(double[] solution, double[] duals, int property, DoubleHolder p_value)`	Calculates the required property of a solution, like maximum infeasibility of a given primal and dual solution.
`void`	`chgBounds(int j, double lb, double ub)`	Change bounds of a single column.
`void`	`chgBounds(int nbounds, int[] colind, byte[] bndtype, double[] bndval)`	Used to change the bounds on columns in the matrix.
`void`	`chgCoef(int row, int col, double coef)`	Used to change a single coefficient in the matrix.
`void`	`chgColType(int x, byte value)`	Convenience wrapper for `chgColType(int, int[], byte[])`.
`void`	`chgColType(int ncols, int[] colind, byte[] coltype)`	Used to change the type of a specified set of columns in the matrix.
`void`	`chgGlbLimit(int x, double value)`	Convenience wrapper for `chgGlbLimit(int, int[], double[])`.
`void`	`chgGlbLimit(int ncols, int[] colind, double[] limit)`	Used to change semi-continuous or semi-integer lower bounds, or upper limits on partial integers.
`void`	`chgLB(int j, double lb)`	Change the lower bound of a single column.
`void`	`chgMCoef(int ncoefs, int[] rowind, int[] colind, double[] rowcoef)`	Used to change multiple coefficients in the matrix.
`void`	`chgMCoef(long ncoefs, int[] rowind, int[] colind, double[] rowcoef)`	Used to change multiple coefficients in the matrix.
`void`	`chgMQObj(int ncoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef)`	Used to change multiple quadratic coefficients in the objective function.
`void`	`chgMQObj(long ncoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef)`	Used to change multiple quadratic coefficients in the objective function.
`void`	`chgObj(int x, double value)`	Convenience wrapper for `chgObj(int, int[], double[])`.
`void`	`chgObj(int ncols, int[] colind, double[] objcoef)`	Used to change the objective function coefficients.
`void`	`chgObjN(int objidx, int ncols, int[] colind, double[] objcoef)`	Modifies one or more coefficients of an objective function in a multi-objective problem.
`void`	`chgObjSense(int objsense)`	Deprecated. use chgObjSense(com.dashoptimization.XPRSenumerations.ObjSense) instead
`void`	`chgObjSense(XPRSenumerations.ObjSense objsense)`	Changes the problem's objective function sense to minimize or maximize.
`void`	`chgQObj(int objqcol1, int objqcol2, double objqcoef)`	Used to change a single quadratic coefficient in the objective function corresponding to the variable pair `(objqcol1,objqcol2)` of the Hessian matrix.
`void`	`chgQRowCoeff(int row, int rowqcol1, int rowqcol2, double rowqcoef)`	Changes a single quadratic coefficient in a row.
`void`	`chgRHS(int x, double value)`	Convenience wrapper for `chgRHS(int, int[], double[])`.
`void`	`chgRHS(int nrows, int[] rowind, double[] rhs)`	Used to change right—hand side values of the problem.
`void`	`chgRHSrange(int x, double value)`	Convenience wrapper for `chgRHSrange(int, int[], double[])`.
`void`	`chgRHSrange(int nrows, int[] rowind, double[] rng)`	Used to change the range for a row of the problem matrix.
`void`	`chgRowType(int x, byte value)`	Convenience wrapper for `chgRowType(int, int[], byte[])`.
`void`	`chgRowType(int nrows, int[] rowind, byte[] rowtype)`	Used to change the type of a row in the matrix.
`void`	`chgUB(int j, double ub)`	Change the upper bound of a single column.
`void`	`clearIIS()`	Resets the search for Irreducible Infeasible Sets (IIS).
`void`	`clearObjective()`	Clear the objective function.
`void`	`clearRowFlags(int[] flags, int first, int last)`	Clears extra information attached to a range of rows.
`void`	`close()`	Destroy the problem, deallocating all memory used.
`XPRSprob.Controls`	`controls()`	Access the controls of this instance.
`int`	`contVar()`	Deprecated. since 43.00, use `addColumn()` instead
`int`	`contVar(double lb, double ub)`	Deprecated. since 43.00, use `addColumn()` instead
`int`	`contVar(double lb, double ub, java.lang.String name)`	Deprecated. since 43.00, use `addColumn()` instead
`int`	`contVar(java.lang.String name)`	Deprecated. since 43.00, use `addColumn()` instead
`int[]`	`contVarArray(int count, double[] lb, double[] ub, java.lang.String[] name)`	Deprecated. since 43.00, use `addColumns()` instead
`int[]`	`contVarArray(int count, double lb, double ub, java.util.function.Function<java.lang.Integer,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`int[]`	`contVarArray(int count, java.util.function.Function<java.lang.Integer,java.lang.Double> lb, java.util.function.Function<java.lang.Integer,java.lang.Double> ub, java.util.function.Function<java.lang.Integer,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> int[]`	`contVarArray(java.util.Collection<T> objs, double lb, double ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> int[]`	`contVarArray(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`contVarMap(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`contVarMap(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name, java.util.Map<T,java.lang.Integer> map)`	Deprecated. since 43.00, use `addColumns()` instead
`void`	`copyCallBacks(XPRSprob src)`	Copies callback functions defined for one problem to another.
`void`	`copyControls(XPRSprob src)`	Copies controls defined for one problem to another.
`void`	`copyProb(XPRSprob src)`	Copy another problem over this one
`XPRSbranchobject`	`createBranchObject(boolean isOriginal)`	Creates a new `XPRSbranchobject`.
`XPRSbranchobject`	`createBranchObjectFromGlobal(int icol)`	Deprecated. since 44.00, will be removed in a future release.
`int`	`crossoverLpSol()`	Convenience wrapper for `crossoverLpSol(com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`crossoverLpSol(IntHolder p_status)`	Provides a basic optimal solution for a given solution of an LP problem.
`void`	`delCols(int ncols, int[] colind)`	Delete columns from a matrix.
`void`	`delCPCuts()`	Convenience wrapper for `delCPCuts(int, int, int, XPRScut[])`.
`void`	`delCPCuts(int cuttype, int interp)`	Convenience wrapper for `delCPCuts(int, int, int, XPRScut[])`.
`void`	`delCPCuts(int cuttype, int interp, int ncuts, XPRScut[] cutind)`	During the branch and bound search, cuts are stored in the cut pool to be applied at descendant nodes.
`void`	`delCPCuts(int ncuts, XPRScut[] cutind)`	Convenience wrapper for `delCPCuts(int, int, int, XPRScut[])`.
`void`	`delCuts(int basis)`	Convenience wrapper for `delCuts(int, int, int, double, int, XPRScut[])`.
`void`	`delCuts(int basis, int cuttype, int interp)`	Convenience wrapper for `delCuts(int, int, int, double, int, XPRScut[])`.
`void`	`delCuts(int basis, int cuttype, int interp, double delta)`	Convenience wrapper for `delCuts(int, int, int, double, int, XPRScut[])`.
`void`	`delCuts(int basis, int cuttype, int interp, double delta, int ncuts, XPRScut[] cutind)`	Deletes cuts from the matrix at the current node.
`void`	`delCuts(int basis, int ncuts, XPRScut[] cutind)`	Convenience wrapper for `delCuts(int, int, int, double, int, XPRScut[])`.
`void`	`delGenCons(int ncons, int[] conind)`	Delete general constraints from a problem.
`void`	`delIndicator(int row)`	Delete a single indicator constraint.
`void`	`delIndicators(int first, int last)`	Delete indicator constraints.
`void`	`delObj(int objidx)`	Removes an objective function from the problem.
`void`	`delPwlCons(int npwls, int[] pwlind)`	Delete piecewise linear constraints from a problem.
`void`	`delQMatrix(int row)`	Deletes the quadratic part of a row or of the objective function.
`void`	`delRows(int nrows, int[] rowind)`	Delete rows from a matrix.
`void`	`delSets(int nsets, int[] setind)`	Delete sets from a problem.
`void`	`destroyProb()`	Deprecated. use `close()` instead.
`void`	`dumpControls()`	Displays the list of controls and their current value for those controls that have been set to a non default value.
`void`	`estimateRowDualRanges(int nrows, int[] rowind, int iterlim, double[] mindual, double[] maxdual)`	Performs a dual side range sensitivity analysis, i.e.
`int`	`firstIIS(int mode)`	Convenience wrapper for `firstIIS(int,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`firstIIS(int mode, IntHolder p_status)`	Initiates a search for an Irreducible Infeasible Set (IIS) in an infeasible problem.
`void`	`fixGlobals(int options)`	Deprecated. Deprecated since 40.01, use `fixMIPEntities(int)` instead.
`void`	`fixMIPEntities(int options)`	Fixes all the MIP entities to the values of the last found MIP solution.
`void`	`ftran(double[] vec)`	Pre-multiplies a (column) vector provided by the user by the inverse of the current matrix.
`XPRSprob.AttributeInfo`	`getAttribInfo(java.lang.String name)`	Get info about an attribute.
`void`	`getAttribInfo(java.lang.String name, IntHolder p_id, XPRSenumerationHolders.ParameterType p_type)`	Accesses the id number and the type information of an attribute given its name.
`void`	`getBarNumStability(int[] colstab, int[] rowstab)`	Deprecated. since 45.00.
`void`	`getBasis(int[] rowstat, int[] colstat)`	Returns the current basis into the user's data arrays.
`XPRSprob.BasisValue`	`getBasisVal(int row, int col)`	Get basis status for a column or row.
`void`	`getBasisVal(int row, int col, IntHolder p_rowstat, IntHolder p_colstat)`	Returns the current basis status for a specific column or row.
`double`	`getCallbackDual(int index)`	Convenience wrapper for `getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getCallbackDual(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackDuals()`	Convenience wrapper for `getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getCallbackDuals(int first, int last)`	Convenience wrapper for `getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackDuals(BoolHolder p_available)`	Convenience wrapper for `getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackDuals(BoolHolder p_available, double[] duals, int first, int last)`	Returns the dual values from the solution associated with the current callback.
`double[]`	`getCallbackDuals(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double`	`getCallbackPresolveDual(int index)`	Convenience wrapper for `getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getCallbackPresolveDual(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackPresolveDuals()`	Convenience wrapper for `getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getCallbackPresolveDuals(int first, int last)`	Convenience wrapper for `getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackPresolveDuals(BoolHolder p_available)`	Convenience wrapper for `getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackPresolveDuals(BoolHolder p_available, double[] duals, int first, int last)`	Returns the dual values from the solution to the presolved problem associated with the current callback.
`double[]`	`getCallbackPresolveDuals(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double`	`getCallbackPresolveRedCost(int index)`	Convenience wrapper for `getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getCallbackPresolveRedCost(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackPresolveRedCosts()`	Convenience wrapper for `getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getCallbackPresolveRedCosts(int first, int last)`	Convenience wrapper for `getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackPresolveRedCosts(BoolHolder p_available)`	Convenience wrapper for `getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackPresolveRedCosts(BoolHolder p_available, double[] djs, int first, int last)`	Returns the reduced costs from the solution to the presolved problem associated with the current callback.
`double[]`	`getCallbackPresolveRedCosts(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double`	`getCallbackPresolveSlack(int index)`	Convenience wrapper for `getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getCallbackPresolveSlack(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackPresolveSlacks()`	Convenience wrapper for `getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getCallbackPresolveSlacks(int first, int last)`	Convenience wrapper for `getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackPresolveSlacks(BoolHolder p_available)`	Convenience wrapper for `getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackPresolveSlacks(BoolHolder p_available, double[] slacks, int first, int last)`	Returns the slack values from the solution to the presolved problem associated with the current callback.
`double[]`	`getCallbackPresolveSlacks(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackPresolveSolution()`	Convenience wrapper for `getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double`	`getCallbackPresolveSolution(int index)`	Convenience wrapper for `getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double[]`	`getCallbackPresolveSolution(int first, int last)`	Convenience wrapper for `getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackPresolveSolution(BoolHolder p_available)`	Convenience wrapper for `getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackPresolveSolution(BoolHolder p_available, double[] x, int first, int last)`	Returns the solution to the presolved problem associated with the current callback.
`double`	`getCallbackPresolveSolution(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackPresolveSolution(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double`	`getCallbackRedCost(int index)`	Convenience wrapper for `getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getCallbackRedCost(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackRedCosts()`	Convenience wrapper for `getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getCallbackRedCosts(int first, int last)`	Convenience wrapper for `getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackRedCosts(BoolHolder p_available)`	Convenience wrapper for `getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackRedCosts(BoolHolder p_available, double[] djs, int first, int last)`	Returns the reduced costs from the solution associated with the current callback.
`double[]`	`getCallbackRedCosts(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double`	`getCallbackSlack(int index)`	Convenience wrapper for `getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getCallbackSlack(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackSlacks()`	Convenience wrapper for `getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getCallbackSlacks(int first, int last)`	Convenience wrapper for `getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackSlacks(BoolHolder p_available)`	Convenience wrapper for `getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackSlacks(BoolHolder p_available, double[] slacks, int first, int last)`	Returns the slack values from the solution associated with the current callback.
`double[]`	`getCallbackSlacks(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackSolution()`	Convenience wrapper for `getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`double`	`getCallbackSolution(int index)`	Convenience wrapper for `getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double[]`	`getCallbackSolution(int first, int last)`	Convenience wrapper for `getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double[]`	`getCallbackSolution(BoolHolder p_available)`	Convenience wrapper for `getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getCallbackSolution(BoolHolder p_available, double[] x, int first, int last)`	Returns the primal values from the solution associated with the current callback.
`double`	`getCallbackSolution(BoolHolder p_available, int index)`	Convenience wrapper for `getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int)` that queries only a single value.
`double[]`	`getCallbackSolution(BoolHolder p_available, int first, int last)`	Convenience wrapper for `getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int)` that allocates the output array.
`double`	`getCoef(int row, int col)`	Convenience wrapper for `getCoef(int,int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getCoef(int row, int col, DoubleHolder p_coef)`	Returns a single coefficient in the constraint matrix.
`int`	`getColBasisVal(int col)`	Get basis status for a column.
`int`	`getCols(int[] start, int[] rowind, double[] rowcoef, int maxcoefs, int first, int last)`	Convenience wrapper for `getCols(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)`.
`void`	`getCols(int[] start, int[] rowind, double[] rowcoef, int maxcoefs, IntHolder p_ncoefs, int first, int last)`	Returns the nonzeros in the constraint matrix for the columns in a given range.
`XPRSprob.MatrixInfo`	`getCols(int first, int last)`	Get range of columns.
`long`	`getCols(long[] start, int[] rowind, double[] rowcoef, long maxcoefs, int first, int last)`	Convenience wrapper for `getCols(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int)`.
`void`	`getCols(long[] start, int[] rowind, double[] rowcoef, long maxcoefs, LongHolder p_ncoefs, int first, int last)`	Returns the nonzeros in the constraint matrix for the columns in a given range.
`void`	`getColType(byte[] coltype, int first, int last)`	Returns the column types for the columns in a given range.
`byte`	`getColType(int x)`	Convenience wrapper for `getColType(byte[], int, int)`.
`byte[]`	`getColType(int first, int last)`	Convenience wrapper for `getColType(byte[], int, int)`.
`java.lang.String`	`getColumnName(int index)`	Get a column name.
`java.lang.String[]`	`getColumnNames(int first, int last)`	Get names of columns.
`XPRSprob.ControlInfo`	`getControlInfo(java.lang.String name)`	Get info about a control.
`void`	`getControlInfo(java.lang.String name, IntHolder p_id, XPRSenumerationHolders.ParameterType p_type)`	Accesses the id number and the type information of a control given its name.
`int`	`getCPCutList(int cuttype, int interp, double delta, int maxcuts, XPRScut[] cutind, double[] viol)`	Convenience wrapper for `getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[])`.
`void`	`getCPCutList(int cuttype, int interp, double delta, IntHolder p_ncuts, int maxcuts, XPRScut[] cutind, double[] viol)`	Returns a list of cut indices from the cut pool.
`int`	`getCPCutList(int maxcuts, XPRScut[] cutind, double[] viol)`	Convenience wrapper for `getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[])`.
`void`	`getCPCuts(XPRScut[] rowind, int ncuts, int maxcoefs, int[] cuttype, byte[] rowtype, int[] start, int[] colind, double[] cutcoef, double[] rhs)`	Returns cuts from the cut pool.
`void`	`getCPCuts(XPRScut[] rowind, int ncuts, long maxcoefs, int[] cuttype, byte[] rowtype, long[] start, int[] colind, double[] cutcoef, double[] rhs)`	Returns cuts from the cut pool.
`XPRScut[]`	`getCutList(int cuttype, int interp)`	Retrieves a list of cut pointers for the cuts active at the current node.
`int`	`getCutList(int cuttype, int interp, int maxcuts, XPRScut[] cutind)`	Convenience wrapper for `getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[])`.
`void`	`getCutList(int cuttype, int interp, IntHolder p_ncuts, int maxcuts, XPRScut[] cutind)`	Retrieves a list of cut pointers for the cuts active at the current node.
`int`	`getCutList(int maxcuts, XPRScut[] cutind)`	Convenience wrapper for `getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[])`.
`void`	`getCutMap(int ncuts, XPRScut[] cutind, int[] cutmap)`	Used to return in which rows a list of cuts are currently loaded into the Optimizer.
`double`	`getCutSlack(XPRScut cutind)`	Convenience wrapper for `getCutSlack(XPRScut,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getCutSlack(XPRScut cutind, DoubleHolder p_slack)`	Used to calculate the slack value of a cut with respect to the current LP relaxation solution.
`double`	`getDblAttrib(int attrib)`	Convenience wrapper for `getDblAttrib(int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getDblAttrib(int attrib, DoubleHolder p_value)`	Enables users to retrieve the values of various double problem attributes.
`double`	`getDblControl(int control)`	Convenience wrapper for `getDblControl(int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getDblControl(int control, DoubleHolder p_value)`	Retrieves the value of a given double control parameter.
`int`	`getDirs()`	Convenience wrapper for `getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[])`.
`int`	`getDirs(int[] indices, int[] prios, byte[] branchdirs, double[] uppseudo, double[] downpseudo)`	Convenience wrapper for `getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[])`.
`void`	`getDirs(IntHolder p_ndir, int[] indices, int[] prios, byte[] branchdirs, double[] uppseudo, double[] downpseudo)`	Used to return the directives that have been loaded into a matrix.
`XPRSprob.MIPEntityInfo`	`getDiscreteCols()`	Get information about MIP entities.
`double`	`getDual(int index)`	Convenience wrapper for `getDuals(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getDual(IntHolder status, int index)`	Convenience wrapper for `getDuals(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value.
`boolean`	`getDualRay(double[] ray)`	Get dual ray.
`void`	`getDualRay(double[] ray, IntHolder p_hasray)`	Retrieves a dual ray (dual unbounded direction) for the current problem, if the problem is found to be infeasible.
`double[]`	`getDuals()`	Convenience wrapper for `getDuals(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getDuals(int first, int last)`	Convenience wrapper for `getDuals(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`double[]`	`getDuals(IntHolder status)`	Convenience wrapper for `getDuals(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getDuals(IntHolder status, double[] duals, int first, int last)`	Returns the dual values from the incumbent solution during or after optimization of a continuous problem with `optimize`, `lpOptimize` or `nlpOptimize`.
`double[]`	`getDuals(IntHolder status, int first, int last)`	Convenience wrapper for `getDuals(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`XPRSprob.GeneralConstraintInfo`	`getGenCons(int first, int last)`	Query a range of general constraints.
`void`	`getGenCons(XPRSenumerations.GenConsType[] contype, int[] resultant, int[] colstart, int[] colind, int maxcols, IntHolder p_ncols, int[] valstart, double[] val, int maxvals, IntHolder p_nvals, int first, int last)`	Returns the general constraints `y = f(x1, ..., xn, c1, ..., cm)` in a given range.
`void`	`getGenCons(XPRSenumerations.GenConsType[] contype, int[] resultant, long[] colstart, int[] colind, long maxcols, LongHolder p_ncols, long[] valstart, double[] val, long maxvals, LongHolder p_nvals, int first, int last)`	Returns the general constraints `y = f(x1, ..., xn, c1, ..., cm)` in a given range.
`java.lang.String`	`getGenConsName(int index)`	Get a general constraint name.
`java.lang.String[]`	`getGenConsNames(int first, int last)`	Get names of general constraints.
`XPRSprob.GlobalInfo`	`getGlobal()`	Deprecated. Deprecated since 40.01, use `getMIPEntities()` instead.
`void`	`getGlobal(IntHolder p_nentities, IntHolder p_nsets, byte[] coltype, int[] colind, double[] limit, byte[] settype, int[] start, int[] setcols, double[] refval)`	Deprecated. Deprecated since 40.01, use `getMIPEntities(IntHolder, IntHolder, byte[], int[], double[], byte[], int[], int[], double[])` instead.
`XPRSprob.GlobalInfo`	`getGlobalEntities()`	Deprecated. Deprecated since 40.01, use `getDiscreteCols()` instead.
`XPRSprob.GlobalInfo`	`getGlobalSets()`	Deprecated. Deprecated since 40.01, use `getSets()` instead.
`XPRSprob.IISData`	`getIISData(int number)`	Get information about an IIS.
`void`	`getIISData(int iis, IntHolder p_nrows, IntHolder p_ncols, int[] rowind, int[] colind, byte[] contype, byte[] bndtype, double[] duals, double[] djs, byte[] isolationrows, byte[] isolationcols)`	Returns information for an Irreducible Infeasible Set: size, variables and constraints (row and column vectors), and conflicting sides of the variables.
`int`	`getIndex(int type, java.lang.String name)`	Convenience wrapper for `getIndex(int,String,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`getIndex(int type, java.lang.String name, IntHolder p_index)`	Returns the index for a specified row or column name.
`IndicatorInfo`	`getIndicator(int row)`	Get indicator information for a single row.
`void`	`getIndicators(int[] colind, int[] complement, int first, int last)`	Returns the indicator constraint condition (indicator variable and complement flag) associated to the rows in a given range.
`IndicatorInfo[]`	`getIndicators(int first, int last)`	Get indicator information for a range of rows.
`XPRSprob.InfeasInfo`	`getInfeas()`	Get infeasibilities.
`void`	`getInfeas(IntHolder p_nprimalcols, IntHolder p_nprimalrows, IntHolder p_ndualrows, IntHolder p_ndualcols, int[] x, int[] slack, int[] duals, int[] djs)`	Returns a list of infeasible primal and dual variables.
`int`	`getIntAttrib(int attrib)`	Convenience wrapper for `getIntAttrib(int,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`getIntAttrib(int attrib, IntHolder p_value)`	Enables users to recover the values of various integer problem attributes.
`int`	`getIntControl(int control)`	Convenience wrapper for `getIntControl(int,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`getIntControl(int control, IntHolder p_value)`	Enables users to recover the values of various integer control parameters
`XPRSprob.StatusSolution`	`getLastBarSol()`	Get a solution.
`int`	`getLastBarSol(double[] x, double[] slack, double[] duals, double[] djs)`	Get the last barrier solution.
`void`	`getLastBarSol(double[] x, double[] slack, double[] duals, double[] djs, IntHolder p_status)`	Used to obtain the last barrier solution values following optimization that used the barrier solver.
`double[]`	`getLastBarSolDjs()`	Get the djs values of a solution.
`double[]`	`getLastBarSolDuals()`	Get the duals values of a solution.
`double[]`	`getLastBarSolSlack()`	Get the slack values of a solution.
`double[]`	`getLastBarSolX()`	Get the x values of a solution.
`java.lang.String`	`getLastError()`	Convenience wrapper for `getLastError(com.dashoptimization.StringHolder)`.
`void`	`getLastError(StringHolder errmsg)`	Returns the error message corresponding to the last error encountered by a library function.
`void`	`getLB(double[] lb, int first, int last)`	Returns the lower bounds for the columns in a given range.
`double`	`getLB(int x)`	Convenience wrapper for `getLB(double[], int, int)`.
`double[]`	`getLB(int first, int last)`	Convenience wrapper for `getLB(double[], int, int)`.
`long`	`getLongAttrib(int attrib)`	Convenience wrapper for `getLongAttrib(int,com.dashoptimization.LongHolder)` that returns the output argument.
`void`	`getLongAttrib(int attrib, LongHolder p_value)`	Enables users to recover the values of various integer problem attributes.
`long`	`getLongControl(int control)`	Convenience wrapper for `getLongControl(int,com.dashoptimization.LongHolder)` that returns the output argument.
`void`	`getLongControl(int control, LongHolder p_value)`	Enables users to recover the values of various integer control parameters
`XPRSprob.Solution`	`getLpSol()`	Get a solution.
`void`	`getLpSol(double[] x)`	Convenience wrapper for `getLpSol(double[], double[], double[], double[])`.
`void`	`getLpSol(double[] x, double[] slack, double[] duals, double[] djs)`	Used to obtain the LP solution values following optimization.
`double[]`	`getLpSolDjs()`	Get the djs values of a solution.
`double[]`	`getLpSolDuals()`	Get the duals values of a solution.
`double[]`	`getLpSolSlack()`	Get the slack values of a solution.
`XPRSprob.SolVal`	`getLpSolVal(int col, int row)`	Deprecated. Deprecated since 44.00, use `getSolution` or `getCallbackSolution` instead.
`void`	`getLpSolVal(int col, int row, DoubleHolder p_x, DoubleHolder p_slack, DoubleHolder p_dual, DoubleHolder p_dj)`	Deprecated. since 44.00, use `getSolution()`, `getCallbackSolution()`, `getSlacks()`, or `getCallbackSlacks()`, `getRedCosts()`, `getCallbackRedCosts()`, `getDuals()`, or `getCallbackDuals()`.
`double[]`	`getLpSolX()`	Get the x values of a solution.
`int`	`getMessageStatus(int msgcode)`	Convenience wrapper for `getMessageStatus(int,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`getMessageStatus(int msgcode, IntHolder p_status)`	Retrieves the current suppression status of a message.
`XPRSprob.MIPEntityInfo`	`getMIPEntities()`	Get information about MIP entities and SOS.
`int`	`getMIPEntities(byte[] coltype, int[] colind, double[] limit)`	Convenience wrapper for `getMIPEntities(com.dashoptimization.IntHolder, com.dashoptimization.IntHolder, byte[], int[], double[], byte[], int[], int[], double[])`.
`void`	`getMIPEntities(IntHolder p_nentities, byte[] coltype, int[] colind, double[] limit)`	Convenience wrapper for `getMIPEntities(com.dashoptimization.IntHolder, com.dashoptimization.IntHolder, byte[], int[], double[], byte[], int[], int[], double[])`.
`void`	`getMIPEntities(IntHolder p_nentities, IntHolder p_nsets, byte[] coltype, int[] colind, double[] limit, byte[] settype, int[] start, int[] setcols, double[] refval)`	Retrieves integr and entity information about a problem.
`void`	`getMIPEntities(IntHolder p_nentities, IntHolder p_nsets, byte[] coltype, int[] colind, double[] limit, byte[] settype, long[] start, int[] setcols, double[] refval)`	Retrieves integr and entity information about a problem.
`XPRSprob.Solution`	`getMipSol()`	Deprecated. since 44.00, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()` instead
`void`	`getMipSol(double[] x)`	Deprecated. since 44.00, use `getSolution()`, `getCallbackSolution()`, `getSlacks()`, or `getCallbackSlacks()`.
`void`	`getMipSol(double[] x, double[] slack)`	Deprecated. since 44.00, use `getSolution()`, `getCallbackSolution()`, `getSlacks()`, or `getCallbackSlacks()`.
`double[]`	`getMipSolSlack()`	Deprecated. since 44.00, will be removed in a future release, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()` instead
`XPRSprob.SolVal`	`getMipSolVal(int col, int row)`	Deprecated. Deprecated since 44.00, use `getSolution` or `getCallbackSolution` instead.
`void`	`getMipSolVal(int col, int row, DoubleHolder p_x, DoubleHolder p_slack)`	Deprecated. since 44.00, use `getSolution()`, `getCallbackSolution()`, `getSlacks()`, or `getCallbackSlacks()`.
`double[]`	`getMipSolX()`	Deprecated. since 44.00, will be removed in a future release, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()` instead
`int`	`getMQObj(int[] start, int[] colind, double[] objqcoef, int maxcoefs, int first, int last)`	Convenience wrapper for `getMQObj(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)`.
`void`	`getMQObj(int[] start, int[] colind, double[] objqcoef, int maxcoefs, IntHolder p_ncoefs, int first, int last)`	Returns the nonzeros in the quadratic objective coefficients matrix for the columns in a given range.
`XPRSprob.MatrixInfo`	`getMQObj(int first, int last)`	Get quadratic objective matrix for range of columns.
`long`	`getMQObj(long[] start, int[] colind, double[] objqcoef, long maxcoefs, int first, int last)`	Convenience wrapper for `getMQObj(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int)`.
`void`	`getMQObj(long[] start, int[] colind, double[] objqcoef, long maxcoefs, LongHolder p_ncoefs, int first, int last)`	Returns the nonzeros in the quadratic objective coefficients matrix for the columns in a given range.
`java.lang.String`	`getName(int type, int elt)`	Get the name of a single element.
`java.lang.String`	`getName(XPRSenumerations.Namespaces type, int elt)`	Get the name of a single element.
`XPRSnamelist`	`getNameListObject(int type)`
`java.lang.String[]`	`getNames(int type, int first, int last)`	Get names.
`void`	`getNames(int type, java.lang.String[] names, int first, int last)`	Get names.
`java.lang.String[]`	`getNames(XPRSenumerations.Namespaces type, int first, int last)`	Get names.
`void`	`getNames(XPRSenumerations.Namespaces type, java.lang.String[] names, int first, int last)`	Get names.
`void`	`getNlpsol(double[] x, double[] slack, double[] duals, double[] djs)`	Deprecated. since 44.00, use `getSolution()`, `getCallbackSolution()`, `getSlacks()`, or `getCallbackSlacks()`, `getRedCosts()`, `getCallbackRedCosts()`, `getDuals()`, or `getCallbackDuals()`.
`void`	`getObj(double[] objcoef, int first, int last)`	Returns the objective function coefficients for the columns in a given range.
`double`	`getObj(int x)`	Convenience wrapper for `getObj(double[], int, int)`.
`double[]`	`getObj(int first, int last)`	Convenience wrapper for `getObj(double[], int, int)`.
`double`	`getObjDblAttrib(int solveidx, int attrib)`	Convenience wrapper for `getObjDblAttrib(int,int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getObjDblAttrib(int solveidx, int attrib, DoubleHolder p_value)`	Retrieves the value of a given double attribute associated with a multi-objective solve.
`double`	`getObjDblControl(int objidx, XPRSenumerations.ObjControl control)`	Convenience wrapper for `getObjDblControl(int,XPRSenumerations.ObjControl,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getObjDblControl(int objidx, XPRSenumerations.ObjControl control, DoubleHolder p_value)`	Retrieves the value of a given double control parameter associated with an objective function.
`int`	`getObjIntAttrib(int solveidx, int attrib)`	Convenience wrapper for `getObjIntAttrib(int,int,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`getObjIntAttrib(int solveidx, int attrib, IntHolder p_value)`	Retrieves the value of a given integer attribute associated with a multi-objective solve.
`void`	`getObjIntAttrib(int solveidx, int attrib, LongHolder p_value)`	Retrieves the value of a given integer attribute associated with a multi-objective solve.
`int`	`getObjIntControl(int objidx, XPRSenumerations.ObjControl control)`	Convenience wrapper for `getObjIntControl(int,XPRSenumerations.ObjControl,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`getObjIntControl(int objidx, XPRSenumerations.ObjControl control, IntHolder p_value)`	Retrieves the value of a given integer control parameter associated with an objective.
`long`	`getObjLongAttrib(int solveidx, int attrib)`	Convenience wrapper for `getObjIntAttrib(int,int,com.dashoptimization.LongHolder)` that returns the output argument.
`void`	`getObjN(int objidx, double[] objcoef, int first, int last)`	For a given objective function, returns the objective coefficients for the columns in a given range.
`void`	`getPivotOrder(int[] pivotorder)`	Returns the pivot order of the basic variables.
`void`	`getPivots(int enter, int[] outlist, double[] x, DoubleHolder p_objval, IntHolder p_npivots, int maxpivots)`	Returns a list of potential leaving variables if a specified variable enters the basis.
`void`	`getPresolveBasis(int[] rowstat, int[] colstat)`	Returns the current basis from memory into the user's data areas.
`void`	`getPresolveMap(int[] rowmap, int[] colmap)`	Returns the mapping of the row and column numbers from the presolve problem back to the original problem.
`XPRSprob.Solution`	`getPresolveSol()`	Get a solution.
`void`	`getPresolveSol(double[] x)`	Convenience wrapper for `getPresolveSol(double[], double[], double[], double[])`.
`void`	`getPresolveSol(double[] x, double[] slack, double[] duals, double[] djs)`	Returns the solution for the presolved problem from memory.
`double[]`	`getPresolveSolDjs()`	Get the djs values of a solution.
`double[]`	`getPresolveSolDuals()`	Get the duals values of a solution.
`double[]`	`getPresolveSolSlack()`	Get the slack values of a solution.
`double[]`	`getPresolveSolX()`	Get the x values of a solution.
`boolean`	`getPrimalRay(double[] ray)`	Get primal ray.
`void`	`getPrimalRay(double[] ray, IntHolder p_hasray)`	Retrieves a primal ray (primal unbounded direction) for the current problem, if the problem is found to be unbounded.
`java.lang.String`	`getProbName()`	Convenience wrapper for `getProbName(com.dashoptimization.StringHolder)`.
`void`	`getProbName(StringHolder name)`	Returns the current problem name.
`void`	`getPwlCons(int[] colind, int[] resultant, int[] start, double[] xval, double[] yval, int maxpoints, IntHolder p_npoints, int first, int last)`	Returns the piecewise linear constraints `y = f(x)` in a given range.
`void`	`getPwlCons(int[] colind, int[] resultant, long[] start, double[] xval, double[] yval, long maxpoints, LongHolder p_npoints, int first, int last)`	Returns the piecewise linear constraints `y = f(x)` in a given range.
`XPRSprob.PWLInfo`	`getPwlCons(int first, int last)`	Query a range of PWL constraints.
`java.lang.String`	`getPWLName(int index)`	Get a PWL constraint name.
`java.lang.String[]`	`getPWLNames(int first, int last)`	Get names of PWL constraints.
`double`	`getQObj(int objqcol1, int objqcol2)`	Convenience wrapper for `getQObj(int,int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getQObj(int objqcol1, int objqcol2, DoubleHolder p_objqcoef)`	Returns a single quadratic objective function coefficient corresponding to the variable pair `(objqcol1, objqcol2)` of the Hessian matrix.
`double`	`getQRowCoeff(int row, int rowqcol1, int rowqcol2)`	Convenience wrapper for `getQRowCoeff(int,int,int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`getQRowCoeff(int row, int rowqcol1, int rowqcol2, DoubleHolder p_rowqcoef)`	Returns a single quadratic constraint coefficient corresponding to the variable pair ( `rowqcol1`, `rowqcol2`) of the Hessian of a given constraint.
`int[]`	`getQRowIndices()`	Get quadratic rows.
`int`	`getQRowQMatrix(int row, int[] start, int[] colind, double[] rowqcoef, int maxcoefs, int first, int last)`	Convenience wrapper for `getQRowQMatrix(int, int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)`.
`void`	`getQRowQMatrix(int row, int[] start, int[] colind, double[] rowqcoef, int maxcoefs, IntHolder p_ncoefs, int first, int last)`	Returns the nonzeros in a quadratic constraint coefficients matrix for the columns in a given range.
`XPRSprob.MatrixTriplets`	`getQRowQMatrixTriplets(int row)`	Get quadratic row.
`int`	`getQRowQMatrixTriplets(int row, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef)`	Convenience wrapper for `getQRowQMatrixTriplets(int, com.dashoptimization.IntHolder, int[], int[], double[])`.
`void`	`getQRowQMatrixTriplets(int row, IntHolder p_ncoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef)`	Returns the nonzeros in a quadratic constraint coefficients matrix as triplets (index pairs with coefficients).
`int`	`getQRows()`	Convenience wrapper for `getQRows(com.dashoptimization.IntHolder, int[])`.
`int`	`getQRows(int[] rowind)`	Convenience wrapper for `getQRows(com.dashoptimization.IntHolder, int[])`.
`void`	`getQRows(IntHolder p_nrows, int[] rowind)`	Returns the list indices of the rows that have quadratic coefficients.
`double`	`getRedCost(int index)`	Convenience wrapper for `getRedCosts(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getRedCost(IntHolder status, int index)`	Convenience wrapper for `getRedCosts(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value.
`double[]`	`getRedCosts()`	Convenience wrapper for `getRedCosts(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getRedCosts(int first, int last)`	Convenience wrapper for `getRedCosts(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`double[]`	`getRedCosts(IntHolder status)`	Convenience wrapper for `getRedCosts(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getRedCosts(IntHolder status, double[] djs, int first, int last)`	Returns the reduced costs from the incumbent solution during or after optimization of a continuous problem with `optimize`, `lpOptimize` or `nlpOptimize`.
`double[]`	`getRedCosts(IntHolder status, int first, int last)`	Convenience wrapper for `getRedCosts(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`void`	`getRHS(double[] rhs, int first, int last)`	Returns the right hand side elements for the rows in a given range.
`double`	`getRHS(int x)`	Convenience wrapper for `getRHS(double[], int, int)`.
`double[]`	`getRHS(int first, int last)`	Convenience wrapper for `getRHS(double[], int, int)`.
`void`	`getRHSrange(double[] rng, int first, int last)`	Returns the right hand side range values for the rows in a given range.
`double`	`getRHSrange(int x)`	Convenience wrapper for `getRHSrange(double[], int, int)`.
`double[]`	`getRHSrange(int first, int last)`	Convenience wrapper for `getRHSrange(double[], int, int)`.
`int`	`getRowBasisVal(int row)`	Get basis status for a row.
`int`	`getRowFlags(int x)`	Convenience wrapper for `getRowFlags(int[], int, int)`.
`void`	`getRowFlags(int[] flags, int first, int last)`	Retrieve if a range of rows have been set up as special rows.
`int[]`	`getRowFlags(int first, int last)`	Convenience wrapper for `getRowFlags(int[], int, int)`.
`java.lang.String`	`getRowName(int index)`	Get a row name.
`java.lang.String[]`	`getRowNames(int first, int last)`	Get names of rows.
`int`	`getRows(int[] start, int[] colind, double[] colcoef, int maxcoefs, int first, int last)`	Convenience wrapper for `getRows(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)`.
`void`	`getRows(int[] start, int[] colind, double[] colcoef, int maxcoefs, IntHolder p_ncoefs, int first, int last)`	Returns the nonzeros in the constraint matrix for the rows in a given range.
`XPRSprob.MatrixInfo`	`getRows(int first, int last)`	Get range of rows.
`long`	`getRows(long[] start, int[] colind, double[] colcoef, long maxcoefs, int first, int last)`	Convenience wrapper for `getRows(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int)`.
`void`	`getRows(long[] start, int[] colind, double[] colcoef, long maxcoefs, LongHolder p_ncoefs, int first, int last)`	Returns the nonzeros in the constraint matrix for the rows in a given range.
`void`	`getRowType(byte[] rowtype, int first, int last)`	Returns the row types for the rows in a given range.
`byte`	`getRowType(int x)`	Convenience wrapper for `getRowType(byte[], int, int)`.
`byte[]`	`getRowType(int first, int last)`	Convenience wrapper for `getRowType(byte[], int, int)`.
`void`	`getScale(int[] rowscale, int[] colscale)`	Returns the the current scaling of the matrix.
`XPRSprob.InfeasInfo`	`getScaledInfeas()`	Get scaled infeasibilities.
`void`	`getScaledInfeas(IntHolder p_nprimalcols, IntHolder p_nprimalrows, IntHolder p_ndualrows, IntHolder p_ndualcols, int[] x, int[] slack, int[] duals, int[] djs)`	Returns a list primal and dual variables that are infeasible for the scaled original problem.
`XPRSprob.MIPEntityInfo`	`getSetDefinitions()`	Get information about SOS.
`java.lang.String`	`getSetName(int index)`	Get a set (SOS) name.
`java.lang.String[]`	`getSetNames(int first, int last)`	Get names of sets (SOS).
`XPRSprob.MIPEntityInfo`	`getSets()`	Deprecated. since 44.00, use getSetDefinitions() instead
`double`	`getSlack(int index)`	Convenience wrapper for `getSlacks(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double`	`getSlack(IntHolder status, int index)`	Convenience wrapper for `getSlacks(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value.
`double[]`	`getSlacks()`	Convenience wrapper for `getSlacks(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`double[]`	`getSlacks(int first, int last)`	Convenience wrapper for `getSlacks(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`double[]`	`getSlacks(IntHolder status)`	Convenience wrapper for `getSlacks(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getSlacks(IntHolder status, double[] slacks, int first, int last)`	Returns the slack values from the incumbent solution during or after optimization with `optimize`, `mipOptimize`, `lpOptimize` or `nlpOptimize`.
`double[]`	`getSlacks(IntHolder status, int first, int last)`	Convenience wrapper for `getSlacks(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`XPRSprob.Solution`	`getSol()`	Deprecated. since 41.00, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()`, `getRedCosts()`, `getCallbackRedCosts()`, `getDuals()`, `getCallbackDuals()` instead
`void`	`getSol(double[] x)`	Deprecated. since 41.00.
`void`	`getSol(double[] x, double[] slack, double[] duals, double[] djs)`	Deprecated. since 41.00.
`double[]`	`getSolDjs()`	Deprecated. since 41.00, will be removed in a future release, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()`, `getRedCosts()`, `getCallbackRedCosts()`, `getDuals()`, `getCallbackDuals()` instead
`double[]`	`getSolDuals()`	Deprecated. since 41.00, will be removed in a future release, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()`, `getRedCosts()`, `getCallbackRedCosts()`, `getDuals()`, `getCallbackDuals()` instead
`double[]`	`getSolSlack()`	Deprecated. since 41.00, will be removed in a future release, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()`, `getRedCosts()`, `getCallbackRedCosts()`, `getDuals()`, `getCallbackDuals()` instead
`double[]`	`getSolution()`	Convenience wrapper for `getSolution(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`double`	`getSolution(int index)`	Convenience wrapper for `getSolution(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...
`double[]`	`getSolution(int first, int last)`	Convenience wrapper for `getSolution(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`double[]`	`getSolution(IntHolder status)`	Convenience wrapper for `getSolution(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array and queries all elements.
`void`	`getSolution(IntHolder status, double[] x, int first, int last)`	Returns the incumbent solution during or after optimization with `optimize`, `mipOptimize`, `lpOptimize` or `nlpOptimize`.
`double`	`getSolution(IntHolder status, int index)`	Convenience wrapper for `getSolution(com.dashoptimization.IntHolder, double[], int, int)` that queries only a single value.
`double[]`	`getSolution(IntHolder status, int first, int last)`	Convenience wrapper for `getSolution(com.dashoptimization.IntHolder, double[], int, int)` that allocates the output array.
`double[]`	`getSolX()`	Deprecated. since 41.00, will be removed in a future release, use one of `getSolution()`, `getCallbackSolution()`, `getSlacks()`, `getCallbackSlacks()`, `getRedCosts()`, `getCallbackRedCosts()`, `getDuals()`, `getCallbackDuals()` instead
`java.lang.String`	`getStrAttrib(int _index)`
`void`	`getStrAttrib(int _index, StringHolder _cvalue)`
`java.lang.String`	`getStrControl(int _index)`
`void`	`getStrControl(int _index, StringHolder _svalue)`
`void`	`getStringControl(int control, StringHolder value, int maxbytes, IntHolder p_nbytes)`	Returns the value of a given string control parameters.
`void`	`getStrStringAttrib(int attrib, StringHolder value, int maxbytes, IntHolder p_nbytes)`	Enables users to recover the values of various string problem attributes.
`void`	`getUB(double[] ub, int first, int last)`	Returns the upper bounds for the columns in a given range.
`double`	`getUB(int x)`	Convenience wrapper for `getUB(double[], int, int)`.
`double[]`	`getUB(int first, int last)`	Convenience wrapper for `getUB(double[], int, int)`.
`int`	`getUnbVec()`	Convenience wrapper for `getUnbVec(com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`getUnbVec(IntHolder p_seq)`	Returns the index vector which causes the primal simplex or dual simplex algorithm to determine that a matrix is primal or dual unbounded respectively.
`void`	`iISAll()`	Deprecated. use IISAll instead
`void`	`IISAll()`	Performs an automated search for independent Irreducible Infeasible Sets (IIS) in an infeasible problem.
`void`	`iISIsolations(int number)`	Deprecated. use IISIsolations instead
`void`	`IISIsolations(int iis)`	Performs the isolation identification procedure for an Irreducible Infeasible Set (IIS).
`void`	`iISStatus(IntHolder iiscount, int[] rowsizes, int[] colsizes, double[] suminfeas, int[] numinfeas)`	Deprecated. use IISStatus instead
`XPRSprob.IISStatusInfo`	`IISStatus()`	Get the IIS status.
`void`	`IISStatus(IntHolder p_niis, int[] nrows, int[] ncols, double[] suminfeas, int[] numinfeas)`	Returns statistics on the Irreducible Infeasible Sets (IIS) found so far by `firstIIS` ( `IIS`), `nextIIS` ( `IIS` `-n`) or `iISAll` ( `IIS` `-a`).
`void`	`interrupt()`	Convenience wrapper for `interrupt(XPRSenumerations.StopType)`.
`void`	`interrupt(int type)`	Deprecated. replaced by `interrupt(com.dashoptimization.XPRSenumerations.StopType)`
`void`	`interrupt(XPRSenumerations.StopType reason)`	Interrupts the Optimizer algorithms.
`int`	`intVar()`	Deprecated. since 43.00, use `addColumn()` instead
`int`	`intVar(double lb, double ub)`	Deprecated. since 43.00, use `addColumn()` instead
`int`	`intVar(double lb, double ub, java.lang.String name)`	Deprecated. since 43.00, use `addColumn()` instead
`int`	`intVar(java.lang.String name)`	Deprecated. since 43.00, use `addColumn()` instead
`int[]`	`intVarArray(int count, double[] lb, double[] ub, java.lang.String[] name)`	Deprecated. since 43.00, use `addColumns()` instead
`int[]`	`intVarArray(int count, double lb, double ub, java.util.function.Function<java.lang.Integer,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`int[]`	`intVarArray(int count, java.util.function.Function<java.lang.Integer,java.lang.Double> lb, java.util.function.Function<java.lang.Integer,java.lang.Double> ub, java.util.function.Function<java.lang.Integer,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> int[]`	`intVarArray(java.util.Collection<T> objs, double lb, double ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> int[]`	`intVarArray(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`intVarMap(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`intVarMap(java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name, java.util.Map<T,java.lang.Integer> map)`	Deprecated. since 43.00, use `addColumns()` instead
`void`	`loadBasis(int[] rowstat, int[] colstat)`	Loads a basis from the user's areas.
`void`	`loadBranchDirs(int x, int value)`	Convenience wrapper for `loadBranchDirs(int, int[], int[])`.
`void`	`loadBranchDirs(int ncols, int[] colind, int[] dir)`	Loads directives into the current problem to specify which MIP entities the Optimizer should continue to branch on when a node solution is integer feasible.
`void`	`loadCuts(int cuttype, int interp)`	Convenience wrapper for `loadCuts(int, int, int, XPRScut[])`.
`void`	`loadCuts(int cuttype, int interp, int ncuts, XPRScut[] cutind)`	Loads cuts from the cut pool into the matrix.
`void`	`loadCuts(int ncuts, XPRScut[] cutind)`	Convenience wrapper for `loadCuts(int, int, int, XPRScut[])`.
`void`	`loadDelayedRows(int nrows, int[] rowind)`	Specifies that a set of rows in the matrix will be treated as delayed rows during a tree search.
`void`	`loadDirs(int ndirs, int[] colind, int[] priority, byte[] dir, double[] uppseudo, double[] downpseudo)`	Loads directives into the matrix.
`void`	`loadGlobal(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, int[] setstart, int[] setind, double[] refval)`	Deprecated. Deprecated since 40.01, use `loadMIP(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[], int, int, byte[], int[], double[], byte[], int[], int[], double[])` instead.
`void`	`loadGlobal(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, long[] setstart, int[] setind, double[] refval)`	Deprecated. Deprecated since 40.01, use `loadMIP(String, int, int, byte[], double[], double[], double[], long[], int[], int[], double[], double[], double[], int, int, byte[], int[], double[], byte[], long[], int[], double[])` instead.
`void`	`loadLp()`	Load this instance with an empty LP.
`void`	`loadLp(java.lang.String probname)`	Load this instance with an empty LP.
`void`	`loadLp(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub)`	Enables the user to pass a matrix directly to the Optimizer, rather than reading the matrix from a file.
`void`	`loadLp(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub)`	Enables the user to pass a matrix directly to the Optimizer, rather than reading the matrix from a file.
`int`	`loadLPSol(double[] x, double[] slack, double[] duals, double[] djs)`	Convenience wrapper for `loadLPSol(double[],double[],double[],double[],com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`loadLPSol(double[] x, double[] slack, double[] duals, double[] djs, IntHolder p_status)`	Loads an LP solution for the problem into the Optimizer.
`void`	`loadMIP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, int[] setstart, int[] setind, double[] refval)`	Used to load a MIP problem into the Optimizer data structures.
`void`	`loadMIP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, long[] setstart, int[] setind, double[] refval)`	Used to load a MIP problem into the Optimizer data structures.
`int`	`loadMipSol(double[] x)`	Convenience wrapper for `loadMipSol(double[],com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`loadMipSol(double[] x, IntHolder p_status)`	Loads a starting MIP solution for the problem into the Optimizer.
`void`	loadMIQCQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nqrows, int[] qrowind, int[] nrowqcoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, int[] setstart, int[] setind, double[] refval)	Used to load a mixed integer quadratic problem with quadratic constraints into the Optimizer data structure.
`void`	loadMIQCQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, long nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nqrows, int[] qrowind, long[] nrowqcoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, long[] setstart, int[] setind, double[] refval)	Used to load a mixed integer quadratic problem with quadratic constraints into the Optimizer data structure.
`void`	`loadMIQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, int[] setstart, int[] setind, double[] refval)`	Used to load a MIQP problem, hence a MIP with quadratic objective coefficients, into the Optimizer data structures.
`void`	`loadMIQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, long nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, long[] setstart, int[] setind, double[] refval)`	Used to load a MIQP problem, hence a MIP with quadratic objective coefficients, into the Optimizer data structures.
`void`	`loadModelCuts(int nrows, int[] rowind)`	Specifies that a set of rows in the matrix will be treated as model cuts.
`void`	`loadPresolveBasis(int[] rowstat, int[] colstat)`	Loads a presolved basis from the user's areas.
`void`	`loadPresolveDirs(int ndirs, int[] colind, int[] priority, byte[] dir, double[] uppseudo, double[] downpseudo)`	Loads directives into the presolved matrix.
`void`	`loadQCQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nqrows, int[] qrowind, int[] nrowqcoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef)`	Used to load a quadratic problem with quadratic side constraints into the Optimizer data structure.
`void`	`loadQCQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, long nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nqrows, int[] qrowind, long[] nrowqcoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef)`	Used to load a quadratic problem with quadratic side constraints into the Optimizer data structure.
`void`	loadQCQPGlobal(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nqrows, int[] qrowind, int[] nrowqcoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, int[] setstart, int[] setind, double[] refval)	Deprecated. Deprecated since 40.01, use `loadMIQCQP(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[], int, int[], int[], double[], int, int[], int[], int[], int[], double[], int, int, byte[], int[], double[], byte[], int[], int[], double[])` instead.
`void`	loadQCQPGlobal(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, long nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nqrows, int[] qrowind, long[] nrowqcoefs, int[] rowqcol1, int[] rowqcol2, double[] rowqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, long[] setstart, int[] setind, double[] refval)	Deprecated. Deprecated since 40.01, use `loadMIQCQP(String, int, int, byte[], double[], double[], double[], long[], int[], int[], double[], double[], double[], long, int[], int[], double[], int, int[], long[], int[], int[], double[], int, int, byte[], int[], double[], byte[], long[], int[], double[])` instead.
`void`	`loadQGlobal(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, int[] setstart, int[] setind, double[] refval)`	Deprecated. Deprecated since 40.01, use `loadMIQP(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[], int, int[], int[], double[], int, int, byte[], int[], double[], byte[], int[], int[], double[])` instead.
`void`	`loadQGlobal(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, long nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef, int nentities, int nsets, byte[] coltype, int[] entind, double[] limit, byte[] settype, long[] setstart, int[] setind, double[] refval)`	Deprecated. Deprecated since 40.01, use `loadMIQP(String, int, int, byte[], double[], double[], double[], long[], int[], int[], double[], double[], double[], long, int[], int[], double[], int, int, byte[], int[], double[], byte[], long[], int[], double[])` instead.
`void`	`loadQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, int[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, int nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef)`	Used to load a quadratic problem into the Optimizer data structure.
`void`	`loadQP(java.lang.String probname, int ncols, int nrows, byte[] rowtype, double[] rhs, double[] rng, double[] objcoef, long[] start, int[] collen, int[] rowind, double[] rowcoef, double[] lb, double[] ub, long nobjqcoefs, int[] objqcol1, int[] objqcol2, double[] objqcoef)`	Used to load a quadratic problem into the Optimizer data structure.
`void`	`loadSecureVecs(int nrows, int ncols, int[] rowind, int[] colind)`	Allows the user to mark rows and columns in order to prevent the presolve removing these rows and columns from the matrix.
`void`	`lpOptimize()`	Convenience wrapper for `lpOptimize(String)`.
`void`	`lpOptimize(java.lang.String flags)`	This function begins a search for the optimal continuous (LP) solution.
`void`	`maxim()`	Deprecated. since 38.00, use `optimize()` instead.
`void`	`maxim(java.lang.String flags)`	Deprecated. since 38.00, use `optimize()` instead
`void`	`minim()`	Deprecated. since 38.00, use `optimize()` instead.
`void`	`minim(java.lang.String flags)`	Deprecated. since 38.00, use `optimize()` instead
`void`	`mipOptimize()`	Convenience wrapper for `mipOptimize(String)`.
`void`	`mipOptimize(java.lang.String flags)`	This function begins a tree search for the optimal MIP solution.
`void`	`msAddCustomPreset(java.lang.String description, int preset, int maxjobs, int ninitial, int[] colind, double[] initial, int nintcontrols, int[] intcontrolid, int[] intcontrolval, int ndblcontrols, int[] dblcontrolid, double[] dblcontrolval, java.lang.Object data)`	A combined version of XSLPmsaddjob and XSLPmsaddpreset.
`void`	`msAddJob(java.lang.String description, int ninitial, int[] colind, double[] initial, int nintcontrols, int[] intcontrolid, int[] intcontrolval, int ndblcontrols, int[] dblcontrolid, double[] dblcontrolval, java.lang.Object data)`	Adds a multistart job to the multistart pool
`void`	`msAddPreset(java.lang.String description, int preset, int maxjobs, java.lang.Object data)`	Loads a preset of jobs into the multistart job pool.
`void`	`msClear()`	Removes all scheduled jobs from the multistart job pool
`int`	`nextIIS()`	Convenience wrapper for `nextIIS(com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`nextIIS(IntHolder p_status)`	Continues the search for further Irreducible Infeasible Sets (IIS), or calls `firstIIS` ( `IIS`) if no IIS has been identified yet.
`void`	`nlpAddFormulas(int ncoefs, int[] rowind, int[] formulastart, int parsed, int[] type, double[] value)`	Add non-linear formulas to the SLP problem.
`XPRSprob.MultiMapDeltaFunction`	`nlpAddUserFunction(java.lang.String funcname, int nin, int nout, int options, XPRSprob.MultiMapDeltaFunctor function)`
`XPRSprob.MultiMapFunction`	`nlpAddUserFunction(java.lang.String funcname, int nin, int nout, int options, XPRSprob.MultiMapFunctor function)`
`XPRSprob.VecMapDeltaFunction`	`nlpAddUserFunction(java.lang.String funcname, int nin, int options, XPRSprob.VecMapDeltaFunctor function)`
`XPRSprob.VecMapFunction`	`nlpAddUserFunction(java.lang.String funcname, int nin, int options, XPRSprob.VecMapFunctor function)`
`XPRSprob.MapDeltaFunction`	`nlpAddUserFunction(java.lang.String funcname, int options, XPRSprob.MapDeltaFunctor function)`
`XPRSprob.MapFunction`	`nlpAddUserFunction(java.lang.String funcname, int options, XPRSprob.MapFunctor function)`
`void`	`nlpCalcSlacks(double[] solution, double[] slack)`	Calculate the slack values for the provided solution in the non-linear problem
`void`	`nlpChgFormula(int row, int parsed, int[] type, double[] value)`	Add or replace a single matrix formula using a parsed or unparsed formula
`void`	`nlpChgFormulaStr(int row, java.lang.String formula)`	Add or replace a single matrix formula using a character string for the formula.
`void`	`nlpChgFormulaString(int row, java.lang.String formula)`	Deprecated. since 42.00, use `nlpChgFormulaStr()` instead.
`void`	`nlpCurrentIV()`	Transfer the current solution to initial values
`void`	`nlpDelFormulas(int nformulas, int[] rowind)`	Delete nonlinear formulas from the current problem
`void`	`nlpDelUserFunction(int type)`	Delete a user function from the current problem
`double`	`nlpEvaluateFormula(int parsed, int[] type, double[] values)`	Convenience wrapper for `nlpEvaluateFormula(int,int[],double[],com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`nlpEvaluateFormula(int parsed, int[] type, double[] values, DoubleHolder p_value)`	Evaluate a formula using the current values of the variables
`void`	`nlpGetFormula(int row, int parsed, int maxtypes, IntHolder p_ntypes, int[] type, double[] value)`	Retrieve a single matrix formula as a formula split into tokens.
`void`	`nlpGetFormulaRows(IntHolder p_nformulas, int[] rowind)`	Retrieve the list of positions of the nonlinear formulas in the problem
`void`	`nlpGetFormulaStr(int row, StringHolder formula, int maxbytes, IntHolder p_nbytes)`	Retrieve a single matrix formula in a character string.
`void`	`nlpGetFormulaString(int row, StringHolder formula, int maxbytes)`	Deprecated. since 42.00.
`void`	`nlpImportLibFunc(java.lang.String libname, java.lang.String funcname, LongHolder p_function, IntHolder p_status)`	Imports a function from a library file to be called as a user function
`void`	`nlpLoadFormulas(int nnlpcoefs, int[] rowind, int[] formulastart, int parsed, int[] type, double[] value)`	Load non-linear formulas into the SLP problem
`void`	`nlpOptimize(java.lang.String flags)`	Maximize or minimize an SLP problem
`void`	`nlpPostsolveProb()`	Restores the problem to its pre-solve state
`void`	`nlpPrintEvalInfo()`	Print a summary of any evaluation errors that may have occurred during solving a problem
`void`	`nlpSetFunctionError()`	Set the function error flag for the problem
`void`	`nlpSetInitVal(int x, double value)`	Convenience wrapper for `nlpSetInitVal(int, int[], double[])`.
`void`	`nlpSetInitVal(int nvars, int[] colind, double[] initial)`	Set the initial value of a variable
`void`	`nlpValidate()`	Validate the feasibility of constraints in a converged solution
`void`	`nlpValidateKKT(int mode, int respectbasis, int updatemult, double violtarget)`	Validates the first order optimality conditions also known as the Karush-Kuhn-Tucker (KKT) conditions versus the currect solution
`void`	`nlpValidateRow(int row)`	Prints an extensive analysis on a given constraint of the SLP problem
`void`	`nlpValidateVector(double[] solution, DoubleHolder p_suminf, DoubleHolder p_sumscaledinf, DoubleHolder p_objval)`	Validate the feasibility of constraints for a given solution
`void`	`objSA(int ncols, int[] colind, double[] lower, double[] upper)`	Returns upper and lower sensitivity ranges for specified objective function coefficients.
`int`	`optimize()`	Convenience wrapper for `optimize(String , IntHolder, IntHolder)`.
`int`	`optimize(java.lang.String flags)`	Convenience wrapper for `optimize(String , IntHolder, IntHolder)`.
`void`	`optimize(java.lang.String flags, IntHolder solvestatus, IntHolder solstatus)`	This function begins a search for the optimal solution of the problem.
`void`	`pivot(int enter, int leave)`	Performs a simplex pivot by bringing variable `enter` into the basis and removing `leave`.
`void`	`postSolve()`	Postsolve the current matrix when it is in a presolved state.
`void`	`postSolveSol(double[] prex, double[] origx)`	Postsolves a primal solution formulated in the presolved space into the corresponding solution formulated in the input space.
`void`	`presolveRow(char rowtype, int norigcoefs, int[] origcolind, double[] origrowcoef, double origrhs, int maxcoefs, IntHolder p_ncoefs, int[] colind, double[] rowcoef, DoubleHolder p_rhs, IntHolder p_status)`	Presolves a row formulated in terms of the original variables such that it can be added to a presolved matrix.
`XPRSprob.RowInfo`	`presolveRow(int[] ind, double[] val, char type, double rhs)`	Presolve a row.
`XPRSprob.RowInfo`	`presolveRow(XPRSprob.RowInfo row)`	Presolve a row.
`void`	`presolveSol(double[] origx, double[] prex)`	Presolves a primal solution formulated in the input space into the corresponding solution formulated in the presolved space.
`void`	`printIIS(int iis)`	Prints a given Irreducible Infeasible Set (IIS) in the log.
`void`	`readBasis()`	Convenience wrapper for `readBasis(String, String)`.
`void`	`readBasis(java.lang.String filename)`	Convenience wrapper for `readBasis(String, String)`.
`void`	`readBasis(java.lang.String filename, java.lang.String flags)`	Instructs the Optimizer to read in a previously saved basis from a file.
`void`	`readBinSol()`	Convenience wrapper for `readBinSol(String, String)`.
`void`	`readBinSol(java.lang.String filename)`	Convenience wrapper for `readBinSol(String, String)`.
`void`	`readBinSol(java.lang.String filename, java.lang.String flags)`	Reads a solution from a binary solution file.
`void`	`readDirs()`	Convenience wrapper for `readDirs(String)`.
`void`	`readDirs(java.lang.String filename)`	Reads a directives file to help direct the tree search.
`void`	`readProb(java.lang.String filename)`	Convenience wrapper for `readProb(String, String)`.
`void`	`readProb(java.lang.String filename, java.lang.String flags)`	Reads an (X)MPS or LP format matrix from file.
`void`	`readSlxSol()`	Convenience wrapper for `readSlxSol(String, String)`.
`void`	`readSlxSol(java.lang.String filename)`	Convenience wrapper for `readSlxSol(String, String)`.
`void`	`readSlxSol(java.lang.String filename, java.lang.String flags)`	Reads an ASCII solution file [ `.slx`] created by the `writeSlxSol` function.
`void`	`removeAfterObjectiveListener(XPRSafterObjectiveListener listener)`	Removes the given AfterObjective listener from the object.
`void`	`removeAfterObjectiveListener(XPRSafterObjectiveListener listener, java.lang.Object data)`	Removes the given AfterObjective listener with the given data value from the object.
`void`	`removeAfterObjectiveListeners()`	Remove all listeners for the AfterObjective callback
`void`	`removeBarIterationListener(XPRSbarIterationListener listener)`	Removes the given BarIteration listener from the object.
`void`	`removeBarIterationListener(XPRSbarIterationListener listener, java.lang.Object data)`	Removes the given BarIteration listener with the given data value from the object.
`void`	`removeBarIterationListeners()`	Remove all listeners for the BarIteration callback
`void`	`removeBarLogListener(XPRSbarLogListener listener)`	Removes the given BarLog listener from the object.
`void`	`removeBarLogListener(XPRSbarLogListener listener, java.lang.Object data)`	Removes the given BarLog listener with the given data value from the object.
`void`	`removeBarLogListeners()`	Remove all listeners for the BarLog callback
`void`	`removeBeforeObjectiveListener(XPRSbeforeObjectiveListener listener)`	Removes the given BeforeObjective listener from the object.
`void`	`removeBeforeObjectiveListener(XPRSbeforeObjectiveListener listener, java.lang.Object data)`	Removes the given BeforeObjective listener with the given data value from the object.
`void`	`removeBeforeObjectiveListeners()`	Remove all listeners for the BeforeObjective callback
`void`	`removeChangeBranchObjectListener(XPRSchangeBranchObjectListener listener)`	Removes the given ChangeBranchObject listener from the object.
`void`	`removeChangeBranchObjectListener(XPRSchangeBranchObjectListener listener, java.lang.Object data)`	Removes the given ChangeBranchObject listener with the given data value from the object.
`void`	`removeChangeBranchObjectListeners()`	Remove all listeners for the ChangeBranchObject callback
`void`	`removeCheckTimeListener(XPRScheckTimeListener listener)`	Removes the given CheckTime listener from the object.
`void`	`removeCheckTimeListener(XPRScheckTimeListener listener, java.lang.Object data)`	Removes the given CheckTime listener with the given data value from the object.
`void`	`removeCheckTimeListeners()`	Remove all listeners for the CheckTime callback
`void`	`removeComputeRestartListener(XPRScomputeRestartListener listener)`	Removes the given ComputeRestart listener from the object.
`void`	`removeComputeRestartListener(XPRScomputeRestartListener listener, java.lang.Object data)`	Removes the given ComputeRestart listener with the given data value from the object.
`void`	`removeComputeRestartListeners()`	Remove all listeners for the ComputeRestart callback
`void`	`removeCutLogListener(XPRScutLogListener listener)`	Removes the given CutLog listener from the object.
`void`	`removeCutLogListener(XPRScutLogListener listener, java.lang.Object data)`	Removes the given CutLog listener with the given data value from the object.
`void`	`removeCutLogListeners()`	Remove all listeners for the CutLog callback
`void`	`removeCutRoundListener(XPRScutRoundListener listener)`	Removes the given CutRound listener from the object.
`void`	`removeCutRoundListener(XPRScutRoundListener listener, java.lang.Object data)`	Removes the given CutRound listener with the given data value from the object.
`void`	`removeCutRoundListeners()`	Remove all listeners for the CutRound callback
`void`	`removeDestroyMTListener(XPRSdestroyMTListener listener)`	Removes the given DestroyMT listener from the object.
`void`	`removeDestroyMTListener(XPRSdestroyMTListener listener, java.lang.Object data)`	Removes the given DestroyMT listener with the given data value from the object.
`void`	`removeDestroyMTListeners()`	Remove all listeners for the DestroyMT callback
`void`	`removeGapNotifyListener(XPRSgapNotifyListener listener)`	Removes the given GapNotify listener from the object.
`void`	`removeGapNotifyListener(XPRSgapNotifyListener listener, java.lang.Object data)`	Removes the given GapNotify listener with the given data value from the object.
`void`	`removeGapNotifyListeners()`	Remove all listeners for the GapNotify callback
`void`	`removeInfNodeListener(XPRSinfNodeListener listener)`	Removes the given InfNode listener from the object.
`void`	`removeInfNodeListener(XPRSinfNodeListener listener, java.lang.Object data)`	Removes the given InfNode listener with the given data value from the object.
`void`	`removeInfNodeListeners()`	Remove all listeners for the InfNode callback
`void`	`removeIntSolListener(XPRSintSolListener listener)`	Removes the given IntSol listener from the object.
`void`	`removeIntSolListener(XPRSintSolListener listener, java.lang.Object data)`	Removes the given IntSol listener with the given data value from the object.
`void`	`removeIntSolListeners()`	Remove all listeners for the IntSol callback
`void`	`removeLpLogListener(XPRSlpLogListener listener)`	Removes the given LpLog listener from the object.
`void`	`removeLpLogListener(XPRSlpLogListener listener, java.lang.Object data)`	Removes the given LpLog listener with the given data value from the object.
`void`	`removeLpLogListeners()`	Remove all listeners for the LpLog callback
`void`	`removeMessageListener(XPRSmessageListener listener)`	Removes the given Message listener from the object.
`void`	`removeMessageListener(XPRSmessageListener listener, java.lang.Object data)`	Removes the given Message listener with the given data value from the object.
`void`	`removeMessageListeners()`	Remove all listeners for the Message callback
`void`	`removeMipLogListener(XPRSmipLogListener listener)`	Removes the given MipLog listener from the object.
`void`	`removeMipLogListener(XPRSmipLogListener listener, java.lang.Object data)`	Removes the given MipLog listener with the given data value from the object.
`void`	`removeMipLogListeners()`	Remove all listeners for the MipLog callback
`void`	`removeMipThreadListener(XPRSmipThreadListener listener)`	Removes the given MipThread listener from the object.
`void`	`removeMipThreadListener(XPRSmipThreadListener listener, java.lang.Object data)`	Removes the given MipThread listener with the given data value from the object.
`void`	`removeMipThreadListeners()`	Remove all listeners for the MipThread callback
`void`	`removeMsgHandlerListener(XPRSmsgHandlerListener listener)`	Removes the given MsgHandler listener from the object.
`void`	`removeMsgHandlerListener(XPRSmsgHandlerListener listener, java.lang.Object data)`	Removes the given MsgHandler listener with the given data value from the object.
`void`	`removeMsgHandlerListeners()`	Remove all listeners for the MsgHandler callback
`void`	`removeMsJobEndListener(XPRSmsJobEndListener listener)`	Removes the given MsJobEnd listener from the object.
`void`	`removeMsJobEndListener(XPRSmsJobEndListener listener, java.lang.Object data)`	Removes the given MsJobEnd listener with the given data value from the object.
`void`	`removeMsJobEndListeners()`	Remove all listeners for the MsJobEnd callback
`void`	`removeMsJobStartListener(XPRSmsJobStartListener listener)`	Removes the given MsJobStart listener from the object.
`void`	`removeMsJobStartListener(XPRSmsJobStartListener listener, java.lang.Object data)`	Removes the given MsJobStart listener with the given data value from the object.
`void`	`removeMsJobStartListeners()`	Remove all listeners for the MsJobStart callback
`void`	`removeMsWinnerListener(XPRSmsWinnerListener listener)`	Removes the given MsWinner listener from the object.
`void`	`removeMsWinnerListener(XPRSmsWinnerListener listener, java.lang.Object data)`	Removes the given MsWinner listener with the given data value from the object.
`void`	`removeMsWinnerListeners()`	Remove all listeners for the MsWinner callback
`void`	`removeNewnodeListener(XPRSnewnodeListener listener)`	Removes the given Newnode listener from the object.
`void`	`removeNewnodeListener(XPRSnewnodeListener listener, java.lang.Object data)`	Removes the given Newnode listener with the given data value from the object.
`void`	`removeNewnodeListeners()`	Remove all listeners for the Newnode callback
`void`	`removeNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener)`	Removes the given NlpCoefEvalError listener from the object.
`void`	`removeNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener, java.lang.Object data)`	Removes the given NlpCoefEvalError listener with the given data value from the object.
`void`	`removeNlpCoefEvalErrorListeners()`	Remove all listeners for the NlpCoefEvalError callback
`void`	`removeNodeCutoffListener(XPRSnodeCutoffListener listener)`	Removes the given NodeCutoff listener from the object.
`void`	`removeNodeCutoffListener(XPRSnodeCutoffListener listener, java.lang.Object data)`	Removes the given NodeCutoff listener with the given data value from the object.
`void`	`removeNodeCutoffListeners()`	Remove all listeners for the NodeCutoff callback
`void`	`removeNodeLPSolvedListener(XPRSnodeLPSolvedListener listener)`	Removes the given NodeLPSolved listener from the object.
`void`	`removeNodeLPSolvedListener(XPRSnodeLPSolvedListener listener, java.lang.Object data)`	Removes the given NodeLPSolved listener with the given data value from the object.
`void`	`removeNodeLPSolvedListeners()`	Remove all listeners for the NodeLPSolved callback
`void`	`removeOptNodeListener(XPRSoptNodeListener listener)`	Removes the given OptNode listener from the object.
`void`	`removeOptNodeListener(XPRSoptNodeListener listener, java.lang.Object data)`	Removes the given OptNode listener with the given data value from the object.
`void`	`removeOptNodeListeners()`	Remove all listeners for the OptNode callback
`void`	`removePreIntsolListener(XPRSpreIntsolListener listener)`	Removes the given PreIntsol listener from the object.
`void`	`removePreIntsolListener(XPRSpreIntsolListener listener, java.lang.Object data)`	Removes the given PreIntsol listener with the given data value from the object.
`void`	`removePreIntsolListeners()`	Remove all listeners for the PreIntsol callback
`void`	`removePreNodeListener(XPRSpreNodeListener listener)`	Removes the given PreNode listener from the object.
`void`	`removePreNodeListener(XPRSpreNodeListener listener, java.lang.Object data)`	Removes the given PreNode listener with the given data value from the object.
`void`	`removePreNodeListeners()`	Remove all listeners for the PreNode callback
`void`	`removePresolveListener(XPRSpresolveListener listener)`	Removes the given Presolve listener from the object.
`void`	`removePresolveListener(XPRSpresolveListener listener, java.lang.Object data)`	Removes the given Presolve listener with the given data value from the object.
`void`	`removePresolveListeners()`	Remove all listeners for the Presolve callback
`void`	`removeSlpCascadeEndListener(XPRSslpCascadeEndListener listener)`	Removes the given SlpCascadeEnd listener from the object.
`void`	`removeSlpCascadeEndListener(XPRSslpCascadeEndListener listener, java.lang.Object data)`	Removes the given SlpCascadeEnd listener with the given data value from the object.
`void`	`removeSlpCascadeEndListeners()`	Remove all listeners for the SlpCascadeEnd callback
`void`	`removeSlpCascadeStartListener(XPRSslpCascadeStartListener listener)`	Removes the given SlpCascadeStart listener from the object.
`void`	`removeSlpCascadeStartListener(XPRSslpCascadeStartListener listener, java.lang.Object data)`	Removes the given SlpCascadeStart listener with the given data value from the object.
`void`	`removeSlpCascadeStartListeners()`	Remove all listeners for the SlpCascadeStart callback
`void`	`removeSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener)`	Removes the given SlpCascadeVarFail listener from the object.
`void`	`removeSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener, java.lang.Object data)`	Removes the given SlpCascadeVarFail listener with the given data value from the object.
`void`	`removeSlpCascadeVarFailListeners()`	Remove all listeners for the SlpCascadeVarFail callback
`void`	`removeSlpCascadeVarListener(XPRSslpCascadeVarListener listener)`	Removes the given SlpCascadeVar listener from the object.
`void`	`removeSlpCascadeVarListener(XPRSslpCascadeVarListener listener, java.lang.Object data)`	Removes the given SlpCascadeVar listener with the given data value from the object.
`void`	`removeSlpCascadeVarListeners()`	Remove all listeners for the SlpCascadeVar callback
`void`	`removeSlpConstructListener(XPRSslpConstructListener listener)`	Removes the given SlpConstruct listener from the object.
`void`	`removeSlpConstructListener(XPRSslpConstructListener listener, java.lang.Object data)`	Removes the given SlpConstruct listener with the given data value from the object.
`void`	`removeSlpConstructListeners()`	Remove all listeners for the SlpConstruct callback
`void`	`removeSlpDrColListener(XPRSslpDrColListener listener)`	Removes the given SlpDrCol listener from the object.
`void`	`removeSlpDrColListener(XPRSslpDrColListener listener, java.lang.Object data)`	Removes the given SlpDrCol listener with the given data value from the object.
`void`	`removeSlpDrColListeners()`	Remove all listeners for the SlpDrCol callback
`void`	`removeSlpIntSolListener(XPRSslpIntSolListener listener)`	Removes the given SlpIntSol listener from the object.
`void`	`removeSlpIntSolListener(XPRSslpIntSolListener listener, java.lang.Object data)`	Removes the given SlpIntSol listener with the given data value from the object.
`void`	`removeSlpIntSolListeners()`	Remove all listeners for the SlpIntSol callback
`void`	`removeSlpIterEndListener(XPRSslpIterEndListener listener)`	Removes the given SlpIterEnd listener from the object.
`void`	`removeSlpIterEndListener(XPRSslpIterEndListener listener, java.lang.Object data)`	Removes the given SlpIterEnd listener with the given data value from the object.
`void`	`removeSlpIterEndListeners()`	Remove all listeners for the SlpIterEnd callback
`void`	`removeSlpIterStartListener(XPRSslpIterStartListener listener)`	Removes the given SlpIterStart listener from the object.
`void`	`removeSlpIterStartListener(XPRSslpIterStartListener listener, java.lang.Object data)`	Removes the given SlpIterStart listener with the given data value from the object.
`void`	`removeSlpIterStartListeners()`	Remove all listeners for the SlpIterStart callback
`void`	`removeSlpIterVarListener(XPRSslpIterVarListener listener)`	Removes the given SlpIterVar listener from the object.
`void`	`removeSlpIterVarListener(XPRSslpIterVarListener listener, java.lang.Object data)`	Removes the given SlpIterVar listener with the given data value from the object.
`void`	`removeSlpIterVarListeners()`	Remove all listeners for the SlpIterVar callback
`void`	`removeSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener)`	Removes the given SlpPreUpdateLinearization listener from the object.
`void`	`removeSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener, java.lang.Object data)`	Removes the given SlpPreUpdateLinearization listener with the given data value from the object.
`void`	`removeSlpPreUpdateLinearizationListeners()`	Remove all listeners for the SlpPreUpdateLinearization callback
`void`	`removeUserSolNotifyListener(XPRSuserSolNotifyListener listener)`	Removes the given UserSolNotify listener from the object.
`void`	`removeUserSolNotifyListener(XPRSuserSolNotifyListener listener, java.lang.Object data)`	Removes the given UserSolNotify listener with the given data value from the object.
`void`	`removeUserSolNotifyListeners()`	Remove all listeners for the UserSolNotify callback
`int`	`repairInfeas(char penalty, char phase2, char flags, double lepref, double gepref, double lbpref, double ubpref, double delta)`	Convenience wrapper for `repairInfeas(com.dashoptimization.IntHolder,char,char,char,double,double,double,double,double)` that returns the output argument.
`void`	`repairInfeas(IntHolder p_status, char penalty, char phase2, char flags, double lepref, double gepref, double lbpref, double ubpref, double delta)`	Provides a simplified interface for `repairWeightedInfeas`.
`int`	`repairWeightedInfeas(double[] lepref, double[] gepref, double[] lbpref, double[] ubpref, char phase2, double delta, java.lang.String flags)`	Convenience wrapper for `repairWeightedInfeas(com.dashoptimization.IntHolder,double[],double[],double[],double[],char,double,String)` that returns the output argument.
`void`	`repairWeightedInfeas(IntHolder p_status, double[] lepref, double[] gepref, double[] lbpref, double[] ubpref, char phase2, double delta, java.lang.String flags)`	By relaxing a set of selected constraints and bounds of an infeasible problem, it attempts to identify a 'solution' that violates the selected set of constraints and bounds minimally, while satisfying all other constraints and bounds.
`int`	`repairWeightedInfeasBounds(double[] lepref, double[] gepref, double[] lbpref, double[] ubpref, double[] lerelax, double[] gerelax, double[] lbrelax, double[] ubrelax, char phase2, double delta, java.lang.String flags)`	Convenience wrapper for `repairWeightedInfeasBounds(com.dashoptimization.IntHolder,double[],double[],double[],double[],double[],double[],double[],double[],char,double,String)` that returns the output argument.
`void`	`repairWeightedInfeasBounds(IntHolder p_status, double[] lepref, double[] gepref, double[] lbpref, double[] ubpref, double[] lerelax, double[] gerelax, double[] lbrelax, double[] ubrelax, char phase2, double delta, java.lang.String flags)`	An extended version of `repairWeightedInfeas` that allows for bounding the level of relaxation allowed.
`void`	`restore()`	Convenience wrapper for `restore(String, String)`.
`void`	`restore(java.lang.String probname)`	Convenience wrapper for `restore(String, String)`.
`void`	`restore(java.lang.String probname, java.lang.String flags)`	Restores the Optimizer's data structures from a file created by `saveAs` ( `SAVE`).
`void`	`rhsSA(int nrows, int[] rowind, double[] lower, double[] upper)`	Returns upper and lower sensitivity ranges for specified right hand side (RHS) function coefficients.
`void`	`save()`	Saves the current data structures, i.e.
`void`	`saveAs(java.lang.String filename)`	Saves the current data structures, i.e.
`void`	`scale(int[] rowscale, int[] colscale)`	Re-scales the current matrix.
`void`	`setDblControl(int control, double value)`	Sets the value of a given double control parameter.
`void`	`setDefaultControl(int control)`	Sets a single control to its default value.
`void`	`setDefaults()`	Sets all controls to their default values.
`void`	`setIndicator(int rowind, int colind, int complement)`	Add a single indicator constraint.
`void`	`setIndicators(int nrows, int[] rowind, int[] colind, int[] complement)`	Specifies that a set of rows in the matrix will be treated as indicator constraints during a tree search.
`void`	`setIntControl(int control, int value)`	Sets the value of a given integer control parameter.
`void`	`setLogFile(java.lang.String filename)`	This directs all Optimizer output to a log file.
`void`	`setLongControl(int control, long value)`	Sets the value of a given integer control parameter.
`void`	`setMessageStatus(int msgcode, int status)`	Manages suppression of messages.
`void`	`setObjDblControl(int objidx, XPRSenumerations.ObjControl control, double value)`	Sets the value of a given double control parameter associated with an objective.
`void`	`setObjective(int[] ind, double[] val)`	Set objective to a linear function.
`void`	`setObjective(int[] ind, double[] val, XPRSenumerations.ObjSense sense)`	Set objective to a linear function.
`void`	`setObjIntControl(int objidx, XPRSenumerations.ObjControl control, int value)`	Sets the value of a given integer control parameter associated with an objective.
`void`	`setProbname(java.lang.String probname)`	Sets the current problem name.
`void`	`setStrControl(int control, java.lang.String value)`	Used to set the value of a given string control parameter.
`void`	`slpAddCoefs(int ncoefs, int[] rowind, int[] colind, double[] factor, int[] formulastart, int parsed, int[] type, double[] value)`	Add non-linear coefficients to the SLP problem.
`void`	`slpCascadeOrder()`	Establish a re-calculation sequence for SLP variables with determining rows.
`void`	`slpCascadeSol()`	Re-calculate consistent values for SLP variables based on the current values of the remaining variables.
`void`	`slpChgCascadeNLimit(int col, int limit)`	Set a variable specific cascade iteration limit
`void`	`slpChgCCoef(int row, int col, DoubleHolder factor, java.lang.String formula)`	Deprecated. since 42.00.
`void`	`slpChgCoef(int row, int col, DoubleHolder factor, int parsed, int[] type, double[] value)`	Add or change a single matrix coefficient using a parsed or unparsed formula.
`void`	`slpChgCoefStr(int row, int col, DoubleHolder factor, java.lang.String formula)`	Add or change a single matrix coefficient using a character string for the formula.
`void`	`slpChgDeltaType(int nvars, int[] varind, int[] deltatypes, double[] values)`	Changes the type of the delta assigned to a nonlinear variable
`void`	`slpChgRowStatus(int row, IntHolder status)`	Change the status setting of a constraint
`void`	`slpChgRowWt(int row, DoubleHolder weight)`	Set or change the initial penalty error weight for a row
`void`	`slpConstruct()`	Create the full augmented SLP matrix and data structures, ready for optimization
`void`	`slpDelCoefs(int x, int value)`	Convenience wrapper for `slpDelCoefs(int, int[], int[])`.
`void`	`slpDelCoefs(int ncoefs, int[] rowind, int[] colind)`	Delete coefficients from the current problem.
`double`	`slpEvaluateCoef(int row, int col)`	Convenience wrapper for `slpEvaluateCoef(int,int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`slpEvaluateCoef(int row, int col, DoubleHolder p_value)`	Evaluate a coefficient using the current values of the variables
`void`	`slpFixPenalties(IntHolder p_status)`	Fixe the values of the error vectors
`void`	`slpGetCCoef(int row, int col, DoubleHolder p_factor, StringHolder formula, int maxbytes)`	Deprecated. since 42.00.
`void`	`slpGetCoefFormula(int row, int col, DoubleHolder p_factor, int parsed, int maxtypes, IntHolder p_ntypes, int[] type, double[] value)`	Retrieve a single matrix coefficient as a formula split into tokens.
`void`	`slpGetCoefs(IntHolder p_ncoefs, int[] rowind, int[] colind)`	Retrieve the list of positions of the nonlinear coefficients in the problem.
`void`	`slpGetCoefStr(int row, int col, DoubleHolder p_factor, StringHolder formula, int maxbytes, IntHolder p_nbytes)`	Retrieve a single matrix coefficient as a formula in a character string.
`int`	`slpGetRowStatus(int row)`	Convenience wrapper for `slpGetRowStatus(int,com.dashoptimization.IntHolder)` that returns the output argument.
`void`	`slpGetRowStatus(int row, IntHolder p_status)`	Retrieve the status setting of a constraint
`double`	`slpGetRowWT(int row)`	Convenience wrapper for `slpGetRowWT(int,com.dashoptimization.DoubleHolder)` that returns the output argument.
`void`	`slpGetRowWT(int row, DoubleHolder p_weight)`	Get the initial penalty error weight for a row
`void`	`slpLoadCoefs(int ncoefs, int[] rowind, int[] colind, double[] factor, int[] formulastart, int parsed, int[] type, double[] coef)`	Load non-linear coefficients into the SLP problem.
`void`	`slpReInitialize()`	Reset the SLP problem to match a just augmented system
`void`	`slpSetDetRow(int x, int value)`	Convenience wrapper for `slpSetDetRow(int, int[], int[])`.
`void`	`slpSetDetRow(int nvars, int[] colind, int[] rowind)`	Set the determining row of a variable
`void`	`slpUnConstruct()`	Removes the augmentation and returns the problem to its pre-linearization state
`void`	`slpUpdateLinearization()`	Updates the current linearization
`void`	`sparseBTran(double[] val, int[] ind, IntHolder p_ncoefs)`	Post-multiplies a (row) vector provided by the user by the inverse of the current matrix.
`void`	`sparseFTran(double[] val, int[] ind, IntHolder p_ncoefs)`	Pre-multiplies a (column) vector provided by the user by the inverse of the current matrix.
`void`	`storeCuts(int ncuts, int nodups, int[] cuttype, byte[] rowtype, double[] rhs, int[] start, XPRScut[] cutind, int[] colind, double[] cutcoef)`	Stores cuts into the cut pool, but does not apply them to the current node.
`void`	`storeCuts(int ncuts, int nodups, int[] cuttype, byte[] rowtype, double[] rhs, long[] start, XPRScut[] cutind, int[] colind, double[] cutcoef)`	Stores cuts into the cut pool, but does not apply them to the current node.
`void`	`strongBranch(int nbounds, int[] colind, byte[] bndtype, double[] bndval, int iterlim, double[] objval, int[] status)`	Performs strong branching iterations on all specified bound changes.
`void`	`strongBranchCB(int nbounds, int[] colind, byte[] bndtype, double[] bndval, int iterlim, double[] objval, int[] status, XPRSstrongBranchSolveListener callback, java.lang.Object data)`	Performs strong branching iterations on all specified bound changes.
`void`	`tune(java.lang.String flags)`	This function begins a tuner session for the current problem.
`void`	`tuneProbSetFile(java.lang.String setfile, int ifmip, int sense)`	This function begins a tuner session for a set of problems.
`void`	`tunerReadMethod(java.lang.String methodfile)`	This function loads a user defined tuner method from the given file.
`void`	`tunerWriteMethod(java.lang.String methodfile)`	This function writes the current tuner method to a given file or prints it to the console.
`void`	`unloadProb()`	Deprecated. since 45.00.
`int[]`	`varArray(char type, int count, double[] lb, double[] ub, java.lang.String[] name)`	Deprecated. since 43.00, use `addColumns()` instead
`int[]`	`varArray(char type, int count, double lb, double ub, java.util.function.Function<java.lang.Integer,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`int[]`	`varArray(char type, int count, java.util.function.Function<java.lang.Integer,java.lang.Double> lb, java.util.function.Function<java.lang.Integer,java.lang.Double> ub, java.util.function.Function<java.lang.Integer,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> int[]`	`varArray(char type, java.util.Collection<T> objs, double lb, double ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> int[]`	`varArray(char type, java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`varMap(char type, java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name)`	Deprecated. since 43.00, use `addColumns()` instead
`<T> java.util.Map<T,java.lang.Integer>`	`varMap(char type, java.util.Collection<T> objs, java.util.function.Function<T,java.lang.Double> lb, java.util.function.Function<T,java.lang.Double> ub, java.util.function.Function<T,java.lang.String> name, java.util.Map<T,java.lang.Integer> map)`	Deprecated. since 43.00, use `addColumns()` instead
`void`	`writeBasis()`	Convenience wrapper for `writeBasis(String, String)`.
`void`	`writeBasis(java.lang.String filename)`	Convenience wrapper for `writeBasis(String, String)`.
`void`	`writeBasis(java.lang.String filename, java.lang.String flags)`	Writes the current basis to a file for later input into the Optimizer.
`void`	`writeBinSol()`	Convenience wrapper for `writeBinSol(String, String)`.
`void`	`writeBinSol(java.lang.String filename)`	Convenience wrapper for `writeBinSol(String, String)`.
`void`	`writeBinSol(java.lang.String filename, java.lang.String flags)`	Writes the current MIP or LP solution to a binary solution file for later input into the Optimizer.
`void`	`writeDirs()`	Convenience wrapper for `writeDirs(String)`.
`void`	`writeDirs(java.lang.String filename)`	Writes the tree search directives from the current problem to a directives file.
`void`	`writeIIS(int iis, java.lang.String filename, int filetype)`	Convenience wrapper for `writeIIS(int, String, int, String)`.
`void`	`writeIIS(int iis, java.lang.String filename, int filetype, java.lang.String flags)`	Writes an LP/MPS/CSV file containing a given Irreducible Infeasible Set (IIS).
`void`	`writeProb()`	Convenience wrapper for `writeProb(String, String)`.
`void`	`writeProb(java.lang.String filename)`	Convenience wrapper for `writeProb(String, String)`.
`void`	`writeProb(java.lang.String filename, java.lang.String flags)`	Writes the current problem to an MPS or LP file.
`void`	`writePrtSol()`	Convenience wrapper for `writePrtSol(String, String)`.
`void`	`writePrtSol(java.lang.String filename)`	Convenience wrapper for `writePrtSol(String, String)`.
`void`	`writePrtSol(java.lang.String filename, java.lang.String flags)`	Writes the current solution to a fixed format ASCII file, problem_name `.prt`.
`void`	`writeSlxSol()`	Convenience wrapper for `writeSlxSol(String, String)`.
`void`	`writeSlxSol(java.lang.String filename)`	Convenience wrapper for `writeSlxSol(String, String)`.
`void`	`writeSlxSol(java.lang.String filename, java.lang.String flags)`	Creates an ASCII solution file ( `.slx`) using a similar format to MPS files.
`void`	`writeSol()`	Convenience wrapper for `writeSol(String, String)`.
`void`	`writeSol(java.lang.String filename)`	Convenience wrapper for `writeSol(String, String)`.
`void`	`writeSol(java.lang.String filename, java.lang.String flags)`	Writes the current solution to a CSV format ASCII file, problem_name `.asc` (and `.hdr`).

Methods inherited from class com.dashoptimization.XPRSobject
addMsgHandlerListener, addMsgHandlerListener, destroy, isDestroyed

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- LEQ
```
public static final char LEQ
```
  Constraint sense for <= constraints.
  
  Since:
  
  43.00
  
  See Also:
  
  Constant Field Values
- GEQ
```
public static final char GEQ
```
  Constraint sense for >= constraints.
  Examples using GEQ:
  - MultipleProblems.java
  Since:
  
  43.00
  
  See Also:
  
  Constant Field Values
- EQ
```
public static final char EQ
```
  Constraint sense for == constraints.
  
  Since:
  
  43.00
  
  See Also:
  
  Constant Field Values

Constructor Detail
- XPRSprob
```
public XPRSprob()
         throws XPRSprobException
```
  Creates a new, empty problem. Note that instances of this class should be explicitly cleaned up by calling close() so that native resources can be released and licenses can be released. A good practice is to use instances of this class with try-with-resources.
  
  Throws:
  
  XPRSprobException - if the problem cannot be created.
- XPRSprob
```
public XPRSprob(java.lang.String path)
         throws XPRSprobException,
                XPRSexception
```
  Creates a new, empty problem. The functions calls XPRS.init(path) so you don't have to do that explicitly. Problems constructed this way will also take care of calling XPRS.free() to match the call to XPRS.init() made from this constructor. Note that instances of this class should be explicitly cleaned up by calling close() so that native resources can be released and licenses can be released. A good practice is to use instances of this class with try-with-resources.
  
  Parameters:
  
  path - The path to the license location for XPRS.init. This can be code null.
  
  Throws:
  
  XPRSexception - if the license cannot be initialized.
  
  XPRSprobException - if the problem cannot be created.
  
  Since:
  
  8.12

Method Detail

close
```
public void close()
```
Destroy the problem, deallocating all memory used. Release any resources allocated for this problem instance. Also calls XPRS.free() to match the call to XPRS.init("") performed by the constructor.

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class XPRSobject

Since:

38

interrupt
```
@Deprecated
public void interrupt(int type)
```
Deprecated.
replaced by interrupt(com.dashoptimization.XPRSenumerations.StopType)

iISStatus

@Deprecated
public void iISStatus(IntHolder iiscount,
                      int[] rowsizes,
                      int[] colsizes,
                      double[] suminfeas,
                      int[] numinfeas)
               throws XPRSprobException

Deprecated.

use IISStatus instead

Throws:: XPRSprobException

iISAll

@Deprecated
public void iISAll()
            throws XPRSprobException

Deprecated.

use IISAll instead

Throws:: XPRSprobException

iISIsolations

@Deprecated
public void iISIsolations(int number)
                   throws XPRSprobException

Deprecated.

use IISIsolations instead

Throws:: XPRSprobException

getNames
```
public void getNames(int type,
                     java.lang.String[] names,
                     int first,
                     int last)
              throws XPRSprobException
```
Get names. Retrieves names for a certain type of objects.

Parameters:

type - The type of object for which names should be retrieved: 1 for row names, 2 for column names, 3 for SOS names, 4 for PWL names, 5 for general constraint names.

names - Buffer in which the names are stored. Must have length at least 1 + list - first.

first - Index of first name to be retrieved.

last - Index of last name to be retrieved.

Throws:

XPRSprobException

getNameListObject

public XPRSnamelist getNameListObject(int type)
                               throws XPRSprobException

Throws:: XPRSprobException

getStrControl

public void getStrControl(int _index,
                          StringHolder _svalue)
                   throws XPRSprobException

Throws:: XPRSprobException

getStrAttrib

public void getStrAttrib(int _index,
                         StringHolder _cvalue)
                  throws XPRSprobException

Throws:: XPRSprobException

getStrControl

public java.lang.String getStrControl(int _index)
                               throws XPRSprobException

Throws:: XPRSprobException

getStrAttrib

public java.lang.String getStrAttrib(int _index)
                              throws XPRSprobException

Throws:: XPRSprobException

addNames
```
public void addNames(int type,
                     java.lang.String[] names,
                     int first,
                     int last)
              throws XPRSprobException
```
Add names to model. Note that if this method fails, then it is unspecified how many of the names were changed.
Examples using addNames:
- LoadLP.java
- Trimloss.java
Parameters:

type - Type of objects to which to add names, See for example XPRSconstants.NAMES_ROW.

names - The names to set (must not be null and must have length at least 1 + last - first.

first - Index of first object to set the name for.

last - Index of last object to set the name for.

Throws:

XPRSprobException

addSetNames
```
@Deprecated
public void addSetNames(java.lang.String[] names,
                        int first,
                        int last)
                 throws XPRSprobException
```
Deprecated.
since 45.00, use addNames() with a type of XPRSenumerations.Namespaces.SET instead.

Add names to sets. Note that if this method fails, then it is unspecified how many of the names were changed.

Parameters:

names - The names to set (must not be null and must have length at least 1 + last - first.

first - Index of first set to set the name for.

last - Index of last set to set the name for.

Throws:

XPRSprobException

Since:

43.00

chgObjSense
```
@Deprecated
public void chgObjSense(int objsense)
                 throws XPRSprobException
```
Deprecated.
use chgObjSense(com.dashoptimization.XPRSenumerations.ObjSense) instead

Retained to maintain compatibility with Xpress 7.0.

Throws:

XPRSprobException

createBranchObject
```
public XPRSbranchobject createBranchObject(boolean isOriginal)
                                    throws XPRSprobException
```
Creates a new XPRSbranchobject.
Parameters:

isOriginal - true if cuts and bound changes will be stated in the original space, false if they will be stated in the presolved space.

Returns:
The new branch object.
Examples using createBranchObject:
- MostViolated.java
Throws:

XPRSprobException

createBranchObjectFromGlobal

@Deprecated
public XPRSbranchobject createBranchObjectFromGlobal(int icol)
                                              throws XPRSprobException

Deprecated.

since 44.00, will be removed in a future release.

Throws:: XPRSprobException

getPwlCons
```
public XPRSprob.PWLInfo getPwlCons(int first,
                                   int last)
                            throws XPRSprobException
```
Query a range of PWL constraints.

Parameters:

first - See getPwlCons(int[], int[], int[], double[], double[], int, IntHolder, int, int).

last - See getPwlCons(int[], int[], int[], double[], double[], int, IntHolder, int, int).

Returns:

the number of points in the queried PWLs.

Throws:

XPRSprobException - in case of error.

getInfeas

public XPRSprob.InfeasInfo getInfeas()
                              throws XPRSprobException

Get infeasibilities.

Returns:: Information about infeasibilites.
Throws:: XPRSprobException

getScaledInfeas
```
public XPRSprob.InfeasInfo getScaledInfeas()
                                    throws XPRSprobException
```
Get scaled infeasibilities.

Returns:

Information about scaled infeasibilites.

Throws:

XPRSprobException

getLastBarSol
```
public int getLastBarSol(double[] x,
                         double[] slack,
                         double[] duals,
                         double[] djs)
                  throws XPRSprobException
```
Get the last barrier solution.

Parameters:

x - Array to store the primal column values (may be null).

slack - Array to store the primal slack values (may be null).

duals - Array to store dual row values (may be null).

djs - Array to store reduced costs (may be null).

Returns:

the status of the last barrier solution.

Throws:

XPRSprobException - in case of error.

basisStability

public double basisStability(int type,
                             int norm,
                             boolean ifscaled)
                      throws XPRSprobException

Compute basis stability.

Returns:: basis stability value.
Throws:: XPRSprobException - in case of error.

getControlInfo
```
public XPRSprob.ControlInfo getControlInfo(java.lang.String name)
                                    throws XPRSprobException
```
Get info about a control.

Parameters:

name - Name of control to query.

Returns:

descriptor for the queried control.

Throws:

XPRSprobException - in case of error.

getAttribInfo
```
public XPRSprob.AttributeInfo getAttribInfo(java.lang.String name)
                                     throws XPRSprobException
```
Get info about an attribute.

Parameters:

name - Name of attribute to query.

Returns:

descriptor for the queried attribute.

Throws:

XPRSprobException - in case of error.

getPrimalRay
```
public boolean getPrimalRay(double[] ray)
                     throws XPRSprobException
```
Get primal ray.

Parameters:

ray - where to store the ray's coefficients.

Returns:

true if a ray is available, false otherwise.

Throws:

XPRSprobException - in case of error.

getDualRay
```
public boolean getDualRay(double[] ray)
                   throws XPRSprobException
```
Get dual ray.

Parameters:

ray - where to store the ray's coefficients.

Returns:

true if a ray is available, false otherwise.

Throws:

XPRSprobException - in case of error.

getBasisVal
```
public XPRSprob.BasisValue getBasisVal(int row,
                                       int col)
                                throws XPRSprobException
```
Get basis status for a column or row.

Parameters:

row - Row index to get the row basis status for.

col - Column index to get the column basis status for.

Returns:

queried basis status.

Throws:

XPRSprobException - in case of error.

See Also:

getRowBasisVal(int), getColBasisVal(int)

getRowBasisVal
```
public int getRowBasisVal(int row)
                   throws XPRSprobException
```
Get basis status for a row.

Parameters:

row - Row index.

Returns:

basis status for row.

Throws:

XPRSprobException - in case of error.

getColBasisVal
```
public int getColBasisVal(int col)
                   throws XPRSprobException
```
Get basis status for a column.

Parameters:

col - Column index.

Returns:

basis status for col.

Throws:

XPRSprobException - in case of error.

getCutList
```
public XPRScut[] getCutList(int cuttype,
                            int interp)
                     throws XPRSprobException
```
Retrieves a list of cut pointers for the cuts active at the current node.

Parameters:

cuttype - User defined type of the cuts to be returned.

interp - Way in which the cut type is interpreted

Returns:

the queried cuts.

Throws:

XPRSprobException - in case of error.

getQRowQMatrixTriplets

public XPRSprob.MatrixTriplets getQRowQMatrixTriplets(int row)
                                               throws XPRSprobException

Get quadratic row.

Parameters:: row - Row index.
Returns:: the quadratic matrix for row.
Throws:: XPRSprobException - in case of error.

getQRowIndices
```
public int[] getQRowIndices()
                     throws XPRSprobException
```
Get quadratic rows.

Returns:

indices of rows with quadratic terms.

Throws:

XPRSprobException - in case of error.

getLpSolVal
```
@Deprecated
public XPRSprob.SolVal getLpSolVal(int col,
                                   int row)
                            throws XPRSprobException
```
Deprecated.
Deprecated since 44.00, use getSolution or getCallbackSolution instead.

Get LP solution value.

Parameters:

col - Column to query.

row - Row to query.

Returns:

solution value for the queried row/column.

Throws:

XPRSprobException - in case of error.

getMipSolVal
```
@Deprecated
public XPRSprob.SolVal getMipSolVal(int col,
                                    int row)
                             throws XPRSprobException
```
Deprecated.
Deprecated since 44.00, use getSolution or getCallbackSolution instead.

Get MIP solution value.

Parameters:

col - Column to query.

row - Row to query.

Returns:

solution value for the queried row/column.

Throws:

XPRSprobException - in case of error.

loadLp
```
public void loadLp()
            throws XPRSprobException
```
Load this instance with an empty LP. The problem name will be set to the empty string. This is a shortcut for loadLp("").
Examples using loadLp:
- LoadLP.java
Throws:

XPRSprobException - if empty model cannot be loaded.

See Also:

loadLp(String), loadLp(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[])

loadLp
```
public void loadLp(java.lang.String probname)
            throws XPRSprobException
```
Load this instance with an empty LP. This is a shortcut for loadLp(probname, 0, 0, null, null, null, null, null, null, null, null, null, null).
Examples using loadLp:
- LoadLP.java
Parameters:

probname - The new problem name.

Throws:

XPRSprobException - if empty model cannot be loaded.

See Also:

loadLp(), loadLp(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[])

fixGlobals
```
@Deprecated
public void fixGlobals(int options)
                throws XPRSprobException
```
Deprecated.
Deprecated since 40.01, use fixMIPEntities(int) instead.

Throws:

XPRSprobException

getGlobal

@Deprecated
public XPRSprob.GlobalInfo getGlobal()
                              throws XPRSprobException

Deprecated.

Deprecated since 40.01, use getMIPEntities() instead.

Throws:: XPRSprobException

getGlobalEntities

@Deprecated
public XPRSprob.GlobalInfo getGlobalEntities()
                                      throws XPRSprobException

Deprecated.

Deprecated since 40.01, use getDiscreteCols() instead.

Throws:: XPRSprobException

getGlobalSets

@Deprecated
public XPRSprob.GlobalInfo getGlobalSets()
                                  throws XPRSprobException

Deprecated.

Deprecated since 40.01, use getSets() instead.

Throws:: XPRSprobException

getGlobal

@Deprecated
public void getGlobal(IntHolder p_nentities,
                      IntHolder p_nsets,
                      byte[] coltype,
                      int[] colind,
                      double[] limit,
                      byte[] settype,
                      int[] start,
                      int[] setcols,
                      double[] refval)
               throws XPRSprobException

Deprecated.

Deprecated since 40.01, use getMIPEntities(IntHolder, IntHolder, byte[], int[], double[], byte[], int[], int[], double[]) instead.

Throws:: XPRSprobException

loadQGlobal

@Deprecated
public void loadQGlobal(java.lang.String probname,
                        int ncols,
                        int nrows,
                        byte[] rowtype,
                        double[] rhs,
                        double[] rng,
                        double[] objcoef,
                        int[] start,
                        int[] collen,
                        int[] rowind,
                        double[] rowcoef,
                        double[] lb,
                        double[] ub,
                        int nobjqcoefs,
                        int[] objqcol1,
                        int[] objqcol2,
                        double[] objqcoef,
                        int nentities,
                        int nsets,
                        byte[] coltype,
                        int[] entind,
                        double[] limit,
                        byte[] settype,
                        int[] setstart,
                        int[] setind,
                        double[] refval)
                 throws XPRSprobException

Deprecated.

Deprecated since 40.01, use

loadMIQP(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[], int, int[], int[], double[], int, int, byte[], int[], double[], byte[], int[], int[], double[])

instead.

Throws:: XPRSprobException

loadQGlobal

@Deprecated
public void loadQGlobal(java.lang.String probname,
                        int ncols,
                        int nrows,
                        byte[] rowtype,
                        double[] rhs,
                        double[] rng,
                        double[] objcoef,
                        long[] start,
                        int[] collen,
                        int[] rowind,
                        double[] rowcoef,
                        double[] lb,
                        double[] ub,
                        long nobjqcoefs,
                        int[] objqcol1,
                        int[] objqcol2,
                        double[] objqcoef,
                        int nentities,
                        int nsets,
                        byte[] coltype,
                        int[] entind,
                        double[] limit,
                        byte[] settype,
                        long[] setstart,
                        int[] setind,
                        double[] refval)
                 throws XPRSprobException

Deprecated.

Deprecated since 40.01, use

loadMIQP(String, int, int, byte[], double[], double[], double[], long[], int[], int[], double[], double[], double[], long, int[], int[], double[], int, int, byte[], int[], double[], byte[], long[], int[], double[])

instead.

Throws:: XPRSprobException

loadGlobal

@Deprecated
public void loadGlobal(java.lang.String probname,
                       int ncols,
                       int nrows,
                       byte[] rowtype,
                       double[] rhs,
                       double[] rng,
                       double[] objcoef,
                       int[] start,
                       int[] collen,
                       int[] rowind,
                       double[] rowcoef,
                       double[] lb,
                       double[] ub,
                       int nentities,
                       int nsets,
                       byte[] coltype,
                       int[] entind,
                       double[] limit,
                       byte[] settype,
                       int[] setstart,
                       int[] setind,
                       double[] refval)
                throws XPRSprobException

Deprecated.

Deprecated since 40.01, use

loadMIP(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[], int, int, byte[], int[], double[], byte[], int[], int[], double[])

instead.

Throws:: XPRSprobException

loadGlobal

@Deprecated
public void loadGlobal(java.lang.String probname,
                       int ncols,
                       int nrows,
                       byte[] rowtype,
                       double[] rhs,
                       double[] rng,
                       double[] objcoef,
                       long[] start,
                       int[] collen,
                       int[] rowind,
                       double[] rowcoef,
                       double[] lb,
                       double[] ub,
                       int nentities,
                       int nsets,
                       byte[] coltype,
                       int[] entind,
                       double[] limit,
                       byte[] settype,
                       long[] setstart,
                       int[] setind,
                       double[] refval)
                throws XPRSprobException

Deprecated.

Deprecated since 40.01, use

loadMIP(String, int, int, byte[], double[], double[], double[], long[], int[], int[], double[], double[], double[], int, int, byte[], int[], double[], byte[], long[], int[], double[])

instead.

Throws:: XPRSprobException

loadQCQPGlobal

@Deprecated
public void loadQCQPGlobal(java.lang.String probname,
                           int ncols,
                           int nrows,
                           byte[] rowtype,
                           double[] rhs,
                           double[] rng,
                           double[] objcoef,
                           int[] start,
                           int[] collen,
                           int[] rowind,
                           double[] rowcoef,
                           double[] lb,
                           double[] ub,
                           int nobjqcoefs,
                           int[] objqcol1,
                           int[] objqcol2,
                           double[] objqcoef,
                           int nqrows,
                           int[] qrowind,
                           int[] nrowqcoefs,
                           int[] rowqcol1,
                           int[] rowqcol2,
                           double[] rowqcoef,
                           int nentities,
                           int nsets,
                           byte[] coltype,
                           int[] entind,
                           double[] limit,
                           byte[] settype,
                           int[] setstart,
                           int[] setind,
                           double[] refval)
                    throws XPRSprobException

Deprecated.

Deprecated since 40.01, use

loadMIQCQP(String, int, int, byte[], double[], double[], double[], int[], int[], int[], double[], double[], double[], int, int[], int[], double[], int, int[], int[], int[], int[], double[], int, int, byte[], int[], double[], byte[], int[], int[], double[])

instead.

Throws:: XPRSprobException

loadQCQPGlobal

@Deprecated
public void loadQCQPGlobal(java.lang.String probname,
                           int ncols,
                           int nrows,
                           byte[] rowtype,
                           double[] rhs,
                           double[] rng,
                           double[] objcoef,
                           long[] start,
                           int[] collen,
                           int[] rowind,
                           double[] rowcoef,
                           double[] lb,
                           double[] ub,
                           long nobjqcoefs,
                           int[] objqcol1,
                           int[] objqcol2,
                           double[] objqcoef,
                           int nqrows,
                           int[] qrowind,
                           long[] nrowqcoefs,
                           int[] rowqcol1,
                           int[] rowqcol2,
                           double[] rowqcoef,
                           int nentities,
                           int nsets,
                           byte[] coltype,
                           int[] entind,
                           double[] limit,
                           byte[] settype,
                           long[] setstart,
                           int[] setind,
                           double[] refval)
                    throws XPRSprobException

Deprecated.

Deprecated since 40.01, use

loadMIQCQP(String, int, int, byte[], double[], double[], double[], long[], int[], int[], double[], double[], double[], long, int[], int[], double[], int, int[], long[], int[], int[], double[], int, int, byte[], int[], double[], byte[], long[], int[], double[])

instead.

Throws:: XPRSprobException

addMipSol
```
public void addMipSol(double[] val,
                      int[] ind,
                      java.lang.String name)
               throws XPRSexception
```
Add a new MIP solution. This is a convenience wrapper for addMipSol(int, double[], int[], String ).
Examples using addMipSol:
Parameters:

val - objects.Variable values.

ind - objects.Variable indices.

name - Name of solution.

Throws:

XPRSexception

See Also:

addMipSol(int, double[], int[], String )

addMipSol
```
public void addMipSol(double[] val,
                      int[] ind)
               throws XPRSexception
```
Add a new MIP solution. This is a convenience wrapper for addMipSol(int, double[], int[], String ).
Examples using addMipSol:
Parameters:

val - objects.Variable values.

ind - objects.Variable indices.

Throws:

XPRSexception

See Also:

addMipSol(int, double[], int[], String )

getMIPEntities
```
public XPRSprob.MIPEntityInfo getMIPEntities()
```
Get information about MIP entities and SOS.

Returns:

The requested information.

Since:

43.00

getDiscreteCols
```
public XPRSprob.MIPEntityInfo getDiscreteCols()
```
Get information about MIP entities.
Examples using getDiscreteCols:
Returns:

The requested information.

Since:

43.00

getSets
```
@Deprecated
public XPRSprob.MIPEntityInfo getSets()
```
Deprecated.
since 44.00, use getSetDefinitions() instead
Get information about SOS.
Examples using getSets:
- Repair.java
Returns:

The requested information.

Since:

43.00

getSetDefinitions
```
public XPRSprob.MIPEntityInfo getSetDefinitions()
```
Get information about SOS.

Returns:

The requested information.

Since:

44.00

delIndicator
```
public void delIndicator(int row)
```
Delete a single indicator constraint. This only deletes the "indicator property from the specified row. Neither the associated variable nor the row are deleted.

Parameters:

row - Row from which to delete the indicator constraint.

Since:

43.00

getIndicators
```
public IndicatorInfo[] getIndicators(int first,
                                     int last)
```
Get indicator information for a range of rows. Returns indicator information for the rows in [ first, last] that actually are indicator rows. No data is returned for rows in this range that are not indicator rows.

Parameters:

first - First (inclusive) row index.

last - Last (inclusive) row index.

Returns:

Indicator data for the specified range of rows.

Since:

43.00

getIndicator
```
public IndicatorInfo getIndicator(int row)
```
Get indicator information for a single row.

Parameters:

row - The row to query.

Returns:

Indicator information for row. This will be null if row is not an indicator row.

Since:

43.00

setIndicator
```
public void setIndicator(int rowind,
                         int colind,
                         int complement)
```
Add a single indicator constraint.
Examples using setIndicator:
- BinBurglar.java
- Sangraalind.java
Parameters:

rowind - Index of the row for the indicator.

colind - Index of the column for the indicator.

complement - If 1 then rowind becomes active if colind is 1. If -1 then rowind becomes active if colind is 0.

Since:

43.00

getCols
```
public XPRSprob.MatrixInfo getCols(int first,
                                   int last)
```
Get range of columns.
Examples using getCols:
Parameters:

first - First column index (inclusive).

last - Last column index (inclusive).

Returns:

Data for the queried columns

getRows
```
public XPRSprob.MatrixInfo getRows(int first,
                                   int last)
```
Get range of rows.
Examples using getRows:
Parameters:

first - First row index (inclusive)

last - Last row index (inclusive)

Returns:

Data for the queried rows.

getMQObj
```
public XPRSprob.MatrixInfo getMQObj(int first,
                                    int last)
```
Get quadratic objective matrix for range of columns.

Parameters:

first - First column index (inclusive).

last - Last column index (inclusive).

Returns:

Data for the queried columns.

addNames
```
public void addNames(XPRSenumerations.Namespaces type,
                     java.lang.String[] names,
                     int first,
                     int last)
```
Add names to model. Note that if this method fails, then it is unspecified how many of the names were changed.
Examples using addNames:
- LoadLP.java
- Trimloss.java
Parameters:

type - Type of objects to which to add name.

names - The names to set. Must not be null and must have length at least 1 + last - first.

first - Index of first object to set the name for.

last - Index of last object to set the name for.

Since:

43.00

optimize
```
public int optimize(java.lang.String flags)
```
Convenience wrapper for optimize(String , IntHolder, IntHolder). This function calls optimize with the specified flags and returns the solve status. The solution status is not returned and must be queried explicitly afterwards using the corresponding attribute. See the documentation of the overloaded function for more details.
Examples using optimize:
Parameters:

flags - Flags to tweak the function behavior.

Returns:

The solve status.

optimize
```
public int optimize()
```
Convenience wrapper for optimize(String , IntHolder, IntHolder). This function calls optimize with default arguments and returns the solve status. The solution status is not returned and must be queried explicitly afterwards using the corresponding attribute. See the documentation of the overloaded function for more details.
Examples using optimize:
Returns:

The solve status

addSets
```
public int[] addSets(int count,
                     int[] start,
                     SetType[] type,
                     int[] setind,
                     double[] setref,
                     java.lang.String[] names)
```
Create multiple set constraints.

Parameters:

count - Number of sets to add.

start - Array of length at least count that indicates where in setind and setref the data for each set starts.

type - Array of length at least count that specifies the set types.

setind - The columns in each set.

setref - Reference values for columns in each set. This can be null in which case values 1, 2, 3, ... will be used for each set.

names - Set names. Can be null.

Returns:

Indices of the newly created sets.

Since:

43.00

addSet
```
public int addSet(SetType type,
                  int[] elements,
                  double[] weights,
                  java.lang.String name)
```
Add a single set constraint to this problem.

Parameters:

type - Set type.

elements - The elements in the set.

weights - Weights for elements. If this is null then weights 1, 2, 3, ... will be used.

name - Name of set. Can be null.

Returns:

The new set constraint.

Since:

43.00

addSets
```
public int[] addSets(SetType[] type,
                     int[][] elements,
                     double[][] weights,
                     java.lang.String[] name)
```
Add multiple set constraints to the problem.

Parameters:

type - Constraint types.

elements - Elements in each constraint.

weights - Weights for each constraint. If this is null then weights 1, 2, 3, ... will be used.

name - Constraint names. Can be null.

Returns:

The new set constraints.

Since:

43.00

addRow
```
public int addRow(int[] colind,
                  double[] colval,
                  char rowtype,
                  double rhs,
                  double rng,
                  java.lang.String name)
           throws XPRSexception,
                  java.lang.IllegalArgumentException
```
Add a single row to the problem.
Examples using addRow:
Parameters:

colind - Array of column indices for the non-zeros for the new row. This can be null. If not null then it must have the same length as colval and colval[k] must be the non-zero coefficient in the new row for column colind[k].

colval - Array of column values for the non-zeros for the new row. This can be null. If not null then it must have the same length as colind and colval[k] must be the non-zero coefficient in the new row for column colind[k].

rowtype - The type of the new row.

rhs - The right-hand side for the new row.

rng - The range value for the new row.

name - The name of the new row. This can be null.

Returns:

The index of the newly created row.

Throws:

XPRSexception

java.lang.IllegalArgumentException

See Also:

addRows(int, int, byte[], double[], double[], int[], int[], double[])

addRow
```
public int addRow(int[] colind,
                  double[] colval,
                  char rowtype,
                  double rhs,
                  java.lang.String name)
           throws XPRSexception,
                  java.lang.IllegalArgumentException
```
Add a single row to the problem.
Examples using addRow:
Parameters:

colind - Array of column indices for the non-zeros for the new row. This can be null. If not null then it must have the same length as colval and colval[k] must be the non-zero coefficient in the new row for column colind[k].

colval - Array of column values for the non-zeros for the new row. This can be null. If not null then it must have the same length as colind and colval[k] must be the non-zero coefficient in the new row for column colind[k].

rowtype - The type of the new row.

rhs - The right-hand side for the new row.

name - The name of the new row. This can be null.

Returns:

The index of the newly created row.

Throws:

XPRSexception

java.lang.IllegalArgumentException

See Also:

addRows(int, int, byte[], double[], double[], int[], int[], double[])

addRow
```
public int addRow(int[] colind,
                  double[] colval,
                  char rowtype,
                  double rhs)
           throws XPRSexception,
                  java.lang.IllegalArgumentException
```
Add a single row to the problem. This is a short cut for addRow(colind, colval, rowtype, rhs, null, null).
Examples using addRow:
Parameters:

colind - Array of column indices for the non-zeros for the new row. This can be null. If not null then it must have the same length as colval and colval[k] must be the non-zero coefficient in the new row for column colind[k].

colval - Array of column values for the non-zeros for the new row. This can be null. If not null then it must have the same length as colind and colval[k] must be the non-zero coefficient in the new row for column colind[k].

rowtype - The type of the new row.

rhs - The right-hand side for the new row

Returns:

The index of the newly created row.

Throws:

XPRSexception

java.lang.IllegalArgumentException

See Also:

addRow(int[], double[], char, double, double, String)

addRow
```
public int addRow(XPRSprob.RowInfo row)
           throws XPRSexception
```
Add a single row to the problem.
Examples using addRow:
Parameters:

row - The row to add.

Returns:

The index of the newly created row.

Throws:

XPRSexception

See Also:

addRow(int[], double[], char, double, double, String)

addRow
```
public int addRow(XPRSprob.RowInfo row,
                  java.lang.String name)
           throws XPRSexception
```
Add a single row to the problem.
Examples using addRow:
Parameters:

row - The row to add.

name - The name for the new row, can be null.

Returns:

The index of the newly created row.

Throws:

XPRSexception

See Also:

addRow(int[], double[], char, double, double, String)

addCut
```
public void addCut(int cuttype,
                   int[] colind,
                   double[] colval,
                   char rowtype,
                   double rhs)
            throws XPRSexception,
                   java.lang.NullPointerException,
                   java.lang.IllegalArgumentException
```
Add a single cut to the problem.
Examples using addCut:
Parameters:

cuttype - The type of the cut. This can be any number chosen by the user to identify their cuts.

colind - Array of column indices for the non-zeros for the new cut. This can be null. If not null then it must have the same length as colval and colval[k] must be the non-zero coefficient in the new cut for column colind[k].

colval - Array of column values for the non-zeros for the new cut. This can be null. If not null then it must have the same length as colind and colval[k] must be the non-zero coefficient in the new cut for column colind[k].

rowtype - The row type of the new cut (less-or-equal, equal, greater-or-equal). The type is specified as 'L', 'E', or 'G'.

rhs - The right-hand side for the new cut.

Throws:

XPRSexception

java.lang.NullPointerException

java.lang.IllegalArgumentException

See Also:

addCuts(int, int[], byte[], double[], int[], int[], double[])

addCut
```
public void addCut(int cuttype,
                   XPRSprob.RowInfo cut)
            throws XPRSexception
```
Add a single cut to the problem.
Examples using addCut:
Parameters:

cuttype - The type of the new cut.

cut - The cut to add

Throws:

XPRSexception

See Also:

addCut(int, int[], double[], char, double)

presolveRow
```
public XPRSprob.RowInfo presolveRow(int[] ind,
                                    double[] val,
                                    char type,
                                    double rhs)
                             throws XPRSexception,
                                    java.lang.NullPointerException,
                                    java.lang.IllegalArgumentException
```
Presolve a row. The function transforms a row that is given in terms of the original model to a row that is given in terms of the presolved model.
Examples using presolveRow:
- TSP.java
Parameters:

ind - Non-zero column indices.

val - Non-zero values of the row.

type - Type of the row

rhs - Right-hand side of the row.

Returns:

null if the row could not be presolved, the presolved row otherwise

Throws:

XPRSexception

java.lang.NullPointerException

java.lang.IllegalArgumentException

See Also:

presolveRow(char, int, int[], double[], double, int, IntHolder, int[], double[], DoubleHolder, IntHolder)

presolveRow
```
public XPRSprob.RowInfo presolveRow(XPRSprob.RowInfo row)
                             throws XPRSexception
```
Presolve a row. The function transforms a row that is given in terms of the original model to a row that is given in terms of the presolved model.
Examples using presolveRow:
- TSP.java
Parameters:

row - The row to presolve.

Returns:

null if the row could not be presolved, the presolved row otherwise

Throws:

XPRSexception

See Also:

presolveRow(char, int, int[], double[], double, int, IntHolder, int[], double[], DoubleHolder, IntHolder)

clearObjective

public void clearObjective()
                    throws XPRSexception

Clear the objective function.

Throws:: XPRSexception

setObjective
```
public void setObjective(int[] ind,
                         double[] val)
                  throws XPRSexception
```
Set objective to a linear function. Any previously set objective will be cleared.
Examples using setObjective:
Parameters:

ind - Non-zero variable indices.

val - Non-zero variable values.

Throws:

XPRSexception

setObjective
```
public void setObjective(int[] ind,
                         double[] val,
                         XPRSenumerations.ObjSense sense)
                  throws XPRSexception
```
Set objective to a linear function. Any previously set objective will be cleared.
Examples using setObjective:
Parameters:

ind - Non-zero variable indices.

val - Non-zero variable values.

sense - Objective sense.

Throws:

XPRSexception

chgLB
```
public void chgLB(int j,
                  double lb)
           throws XPRSexception
```
Change the lower bound of a single column.
Examples using chgLB:
- Repair.java
Parameters:

j - The column to change.

lb - The new lower bound.

Throws:

XPRSexception

See Also:

chgBounds(int, int[], byte[], double[])

chgUB
```
public void chgUB(int j,
                  double ub)
           throws XPRSexception
```
Change the upper bound of a single column.
Examples using chgUB:
- Repair.java
Parameters:

j - The column to change.

ub - The new upper bound.

Throws:

XPRSexception

See Also:

chgBounds(int, int[], byte[], double[])

chgBounds
```
public void chgBounds(int j,
                      double lb,
                      double ub)
               throws XPRSexception
```
Change bounds of a single column.
Examples using chgBounds:
Parameters:

j - Column to change.

lb - New lower bound.

ub - New upper bound.

Throws:

XPRSexception

See Also:

chgBounds(int, int[], byte[], double[])

addCol
```
@Deprecated
public int addCol(double obj,
                  double lb,
                  double ub,
                  char type,
                  int[] rowind,
                  double[] rowval,
                  java.lang.String name)
           throws XPRSexception,
                  java.lang.IllegalArgumentException
```
Deprecated.
since 45.00, use addColumn() instead

Add a single column to the model.

Parameters:

obj - The objective coefficient for the new column.

lb - The lower bound for the new column.

ub - The upper bound for the new column.

type - The type for the new column.

rowind - Array of row indices for the non-zeros for the new column. This can be null. If not null then it must have the same length as rowval and rowval[k] must be the non-zero coefficient of the new column in row rowind[k].

rowval - Array of row values for the non-zeros for the new column. This can be null. If not null then it must have the same length as rowind and rowval[k] must be the non-zero coefficient of the new column in row rowind[k].

name - The name of the new column. This can be null.

Returns:

The index of the newly created column.

Throws:

XPRSexception

java.lang.IllegalArgumentException

See Also:

addCols(int, int, double[], int[], int[], double[], double[], double[])

addCol
```
@Deprecated
public int addCol(double obj,
                  double lb,
                  double ub,
                  char type,
                  int[] rowind,
                  double[] rowval)
           throws XPRSexception,
                  java.lang.IllegalArgumentException
```
Deprecated.
since 45.00, use addColumn() instead

Add a single column to this problem. This is a shortcut for addCol(obj, lb, ub, type, rowind, rowval, null);.

Parameters:

obj - The objective coefficient for the new column.

lb - The lower bound for the new column.

ub - The upper bound for the new column.

type - The type for the new column.

rowind - Array of row indices for the non-zeros for the new column. This can be null. If not null then it must have the same length as rowval and rowval[k] must be the non-zero coefficient of the new column in row rowind[k].

rowval - Array of row values for the non-zeros for the new column. This can be null. If not null then it must have the same length as rowind and rowval[k] must be the non-zero coefficient of the new column in row rowind[k].

Returns:

The index of the newly created column.

Throws:

XPRSexception

java.lang.IllegalArgumentException

See Also:

addCol(double, double, double, char, int[], double[], String)

addCol
```
@Deprecated
public int addCol(double obj,
                  double lb,
                  double ub)
           throws XPRSexception
```
Deprecated.
since 45.00, use addColumn() instead

Add a single column to this problem. This is a shortcut for addCol(obj, lb, ub, 'C', null, null, null);.

Parameters:

obj - The objective coefficient for the new column.

lb - The lower bound for the new column.

ub - The upper bound for the new column.

Returns:

The index of the newly created column.

Throws:

XPRSexception

See Also:

addCol(double, double, double, char, int[], double[], String)

addCol
```
@Deprecated
public int addCol(double obj,
                  double lb,
                  double ub,
                  char type)
           throws XPRSexception
```
Deprecated.
since 45.00, use addColumn() instead

Add a single column to this problem. This is a shortcut for addCol(obj, lb, ub, type, null, null, null);.

Parameters:

obj - The objective coefficient for the new column.

lb - The lower bound for the new column.

ub - The upper bound for the new column.

type - The type for the new column.

Returns:

The index of the newly created column.

Throws:

XPRSexception

See Also:

addCol(double, double, double, char, int[], double[], String)

addCol
```
@Deprecated
public int addCol(double obj,
                  double lb,
                  double ub,
                  java.lang.String name)
           throws XPRSexception
```
Deprecated.
since 45.00, use addColumn() instead

Add a single column to this problem. This is a shortcut for addCol(obj, lb, ub, 'C', null, null, name);.

Parameters:

obj - The objective coefficient for the new column.

lb - The lower bound for the new column.

ub - The upper bound for the new column.

name - The name of the new column. This can be null.

Returns:

The index of the newly created column.

Throws:

XPRSexception

See Also:

addCol(double, double, double, char, int[], double[], String)

addCol
```
@Deprecated
public int addCol(double obj,
                  double lb,
                  double ub,
                  char type,
                  java.lang.String name)
           throws XPRSexception
```
Deprecated.
since 45.00, use addColumn() instead

Add a single column to this problem. This is a shortcut for addCol(obj, lb, ub, type, null, null, name);.

Parameters:

obj - The objective coefficient for the new column.

lb - The lower bound for the new column.

ub - The upper bound for the new column.

type - The type for the new column.

name - The name of the new column. This can be null.

Returns:

The index of the newly created column.

Throws:

XPRSexception

See Also:

addCol(double, double, double, char, int[], double[], String)

varArray
```
@Deprecated
public int[] varArray(char type,
                      int count,
                      double lb,
                      double ub,
                      java.util.function.Function<java.lang.Integer,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of variables with the same type. All the variables created by this function have the same types and bounds.

Parameters:

type - Type of variables.

count - Number of variables to create.

lb - The lower bound for the variables.

ub - The upper bound for the variables.

name - Function that creates a name from an index. This will be invoked with arguments 0..count-1 to obtain a name for the newly created variables. Can be null in which case the variables will not have names.

Returns:

The indices of the newly created variables.

varArray
```
@Deprecated
public int[] varArray(char type,
                      int count,
                      double[] lb,
                      double[] ub,
                      java.lang.String[] name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of variables with the same type.

Parameters:

type - Type of the variables.

count - Number of variables to create.

lb - Lower bound for the variables, must match count.

ub - Upper bound for the variables, must match count.

name - Names for the variables, must match count. If null variables will be unnamed.

Returns:

The indices of the newly created variables.

varArray
```
@Deprecated
public int[] varArray(char type,
                      int count,
                      java.util.function.Function<java.lang.Integer,java.lang.Double> lb,
                      java.util.function.Function<java.lang.Integer,java.lang.Double> ub,
                      java.util.function.Function<java.lang.Integer,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of variables with the same type.

Parameters:

type - Type of the variables.

count - Number of variables to create.

lb - Function to create a lower bound from an index. This will be invoked with 0..count-1 to create a lower bound for each variable.

ub - Function to create an upper bound from an index. This will be invoked with 0..count-1 to create an upper bound for each variable.

name - Function that creates a name from an index. This will be invoked with arguments 0..count-1 to obtain a name for the newly created variables. Can be null in which case the variables will not have names.

Returns:

The indices of the newly created variables.

varArray
```
@Deprecated
public <T> int[] varArray(char type,
                          java.util.Collection<T> objs,
                          double lb,
                          double ub,
                          java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of variables with the same type. All the variables created by this function have the same types and bounds. The function will create one variable for each of the objects listed in objs.

Type Parameters:

T - The type of objects

Parameters:

type - Type of variables.

objs - The objects. One variable will be created for each object in this collection.

lb - Lower bound for new variables.

ub - Upper bound for new variables.

name - Function to create a name from an object. This function will be invoked for all the objects from objs to generate a name for the respective variable. If null then variables will be unnamed.

Returns:

The indices of the newly created variables.

varArray
```
@Deprecated
public <T> int[] varArray(char type,
                          java.util.Collection<T> objs,
                          java.util.function.Function<T,java.lang.Double> lb,
                          java.util.function.Function<T,java.lang.Double> ub,
                          java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of variables with the same type. The function will create one variable for each of the objects listed in objs.

Type Parameters:

T - Type of the objects

Parameters:

type - Type of the variables.

objs - Objects for which to create variables.

lb - Function to create a lower bound for a variable. This will be invoked for each object in objs to generate a lower bound for the respective variable.

ub - Function to create a lower bound for a variable. This will be invoked for each object in objs to generate a lower bound for the respective variable.

name - Function to create a name for a variable. This function will be invoked for all the objects from objs to generate a name for the respective variable. If null then variables will be unnamed.

Returns:

Indices of the newly created variables.

varMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> varMap(char type,
                                                           java.util.Collection<T> objs,
                                                           java.util.function.Function<T,java.lang.Double> lb,
                                                           java.util.function.Function<T,java.lang.Double> ub,
                                                           java.util.function.Function<T,java.lang.String> name,
                                                           java.util.Map<T,java.lang.Integer> map)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of variables that all have the same type. The function creates a new variable for each object in objs. For each object o it puts the pair (o, idx) into map where idx is the index of the variable that was created for o.

Type Parameters:

T - The type of objects.

Parameters:

type - Type of variables.

objs - Objects for which to create variables.

lb - Function to create lower bound for variables. This will be invoked for each object in objs to generate a lower bound for the corresponding variable.

ub - Function to create lower bound for variables. This will be invoked for each object in objs to generate an upper bound for the corresponding variable.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

map - The map to which new object,index pairs are added.

Returns:

Returns map.

varMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> varMap(char type,
                                                           java.util.Collection<T> objs,
                                                           java.util.function.Function<T,java.lang.Double> lb,
                                                           java.util.function.Function<T,java.lang.Double> ub,
                                                           java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of variables that all have the same type. The function creates a new variable for each object in objs. It returns a hash map in which each object in objs maps to the index of the variable that was created for it.

Type Parameters:

T - The type of objects.

Parameters:

type - Type of variables.

objs - Objects for which to create variables.

lb - Function to create lower bound for variables. This will be invoked for each object in objs to generate a lower bound for the corresponding variable.

ub - Function to create lower bound for variables. This will be invoked for each object in objs to generate an upper bound for the corresponding variable.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

Returns:

Mapping of objects to variable indices.

contVar
```
@Deprecated
public int contVar()
```
Deprecated.
since 43.00, use addColumn() instead

Create a continuous variable with default bounds [0, infinity].

Returns:

objects.Index of the newly created variable.

contVar
```
@Deprecated
public int contVar(java.lang.String name)
```
Deprecated.
since 43.00, use addColumn() instead

Create a continuous variable with default bounds [0, infinity] and a specified name.

Parameters:

name - objects.Variable name.

Returns:

objects.Index of the newly created variable.

contVar
```
@Deprecated
public int contVar(double lb,
                   double ub)
```
Deprecated.
since 43.00, use addColumn() instead

Create a continuous variable with specified bounds.

Parameters:

lb - Lower bound

ub - Upper bound

Returns:

objects.Index of the newly created variable.

contVar
```
@Deprecated
public int contVar(double lb,
                   double ub,
                   java.lang.String name)
```
Deprecated.
since 43.00, use addColumn() instead

Create a continuous variable with specified bounds and name.

Parameters:

lb - Lower bound

ub - Upper bound

name - objects.Variable name.

Returns:

objects.Index of the newly created variable.

contVarArray
```
@Deprecated
public int[] contVarArray(int count,
                          double lb,
                          double ub,
                          java.util.function.Function<java.lang.Integer,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of continuous variables. All the variables created by this function have the same types and bounds.

Parameters:

count - Number of variables to create.

lb - The lower bound for the variables.

ub - The upper bound for the variables.

name - Function that creates a name from an index. This will be invoked with arguments 0..count-1 to obtain a name for the newly created variables. Can be null in which case the variables will not have names.

Returns:

The indices of the newly created variables.

contVarArray
```
@Deprecated
public int[] contVarArray(int count,
                          double[] lb,
                          double[] ub,
                          java.lang.String[] name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of continuous variables.

Parameters:

count - Number of variables to create.

lb - Lower bound for the variables, must match count.

ub - Upper bound for the variables, must match count.

name - Names for the variables, must match count. If null variables will be unnamed.

Returns:

The indices of the newly created variables.

contVarArray
```
@Deprecated
public int[] contVarArray(int count,
                          java.util.function.Function<java.lang.Integer,java.lang.Double> lb,
                          java.util.function.Function<java.lang.Integer,java.lang.Double> ub,
                          java.util.function.Function<java.lang.Integer,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of continuous variables.

Parameters:

count - Number of variables to create.

lb - Function to create a lower bound from an index. This will be invoked with 0..count-1 to create a lower bound for each variable.

ub - Function to create an upper bound from an index. This will be invoked with 0..count-1 to create an upper bound for each variable.

name - Function that creates a name from an index. This will be invoked with arguments 0..count-1 to obtain a name for the newly created variables. Can be null in which case the variables will not have names.

Returns:

The indices of the newly created variables.

contVarArray
```
@Deprecated
public <T> int[] contVarArray(java.util.Collection<T> objs,
                              double lb,
                              double ub,
                              java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of continuous variables. All the variables created by this function have the same types and bounds. The function will create one variable for each of the objects listed in objs.

Type Parameters:

T - The type of objects

Parameters:

objs - The objects. One variable will be created for each object in this collection.

lb - Lower bound for new variables.

ub - Upper bound for new variables.

name - Function to create a name from an object. This function will be invoked for all the objects from objs to generate a name for the respective variable. If null then variables will be unnamed.

Returns:

The indices of the newly created variables.

contVarArray
```
@Deprecated
public <T> int[] contVarArray(java.util.Collection<T> objs,
                              java.util.function.Function<T,java.lang.Double> lb,
                              java.util.function.Function<T,java.lang.Double> ub,
                              java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of continuous variables. The function will create one variable for each of the objects listed in objs.

Type Parameters:

T - Type of the objects

Parameters:

objs - Objects for which to create variables.

lb - Function to create a lower bound for a variable. This will be invoked for each object in objs to generate a lower bound for the respective variable.

ub - Function to create a lower bound for a variable. This will be invoked for each object in objs to generate a lower bound for the respective variable.

name - Function to create a name for a variable. This function will be invoked for all the objects from objs to generate a name for the respective variable. If null then variables will be unnamed.

Returns:

Indices of the newly created variables.

contVarMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> contVarMap(java.util.Collection<T> objs,
                                                               java.util.function.Function<T,java.lang.Double> lb,
                                                               java.util.function.Function<T,java.lang.Double> ub,
                                                               java.util.function.Function<T,java.lang.String> name,
                                                               java.util.Map<T,java.lang.Integer> map)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of continuous variables. The function creates a new variable for each object in objs. For each object o it puts the pair (o, idx) into map where idx is the index of the variable that was created for o.

Type Parameters:

T - The type of objects.

Parameters:

objs - Objects for which to create variables.

lb - Function to create lower bound for variables This will be invoked for each object in objs to generate a lower bound for the corresponding variable.

ub - Function to create lower bound for variables This will be invoked for each object in objs to generate an upper bound for the corresponding variable.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

map - The map to which new object,index pairs are added.

Returns:

Returns map.

contVarMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> contVarMap(java.util.Collection<T> objs,
                                                               java.util.function.Function<T,java.lang.Double> lb,
                                                               java.util.function.Function<T,java.lang.Double> ub,
                                                               java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of continuous variables. The function creates a new variable for each object in objs. It returns a hash map in which each object in objs maps to the index of the variable that was created for it.

Type Parameters:

T - The type of objects.

Parameters:

objs - Objects for which to create variables.

lb - Function to create lower bound for variables. This will be invoked for each object in objs to generate a lower bound for the corresponding variable.

ub - Function to create lower bound for variables. This will be invoked for each object in objs to generate an upper bound for the corresponding variable.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

Returns:

Mapping of objects to variable indices.

intVar
```
@Deprecated
public int intVar()
```
Deprecated.
since 43.00, use addColumn() instead

Create a new integer variable with default bounds [0, infinity].

Returns:

objects.Index of the newly created variable.

intVar
```
@Deprecated
public int intVar(java.lang.String name)
```
Deprecated.
since 43.00, use addColumn() instead

Create a new integer variable with default bounds [0, infinity] and a specified name.

Parameters:

name - objects.Variable name.

Returns:

objects.Index of the newly created variable.

intVar
```
@Deprecated
public int intVar(double lb,
                  double ub)
```
Deprecated.
since 43.00, use addColumn() instead

Create a new integer variable with specified bounds.

Parameters:

lb - Lower bound for variable.

ub - Upper bound for variable.

Returns:

objects.Index of the newly created variable.

intVar
```
@Deprecated
public int intVar(double lb,
                  double ub,
                  java.lang.String name)
```
Deprecated.
since 43.00, use addColumn() instead

Create a new integer variable with specified bounds and name.

Parameters:

lb - Lower bound for variable.

ub - Upper bound for variable.

name - objects.Variable name.

Returns:

objects.Index of the newly created variable.

intVarArray
```
@Deprecated
public int[] intVarArray(int count,
                         double lb,
                         double ub,
                         java.util.function.Function<java.lang.Integer,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of integer variables. All the variables created by this function have the same types and bounds.

Parameters:

count - Number of variables to create.

lb - The lower bound for the variables.

ub - The upper bound for the variables.

name - Function that creates a name from an index. This will be invoked with arguments 0..count-1 to obtain a name for the newly created variables. Can be null in which case the variables will not have names.

Returns:

The indices of the newly created variables.

intVarArray
```
@Deprecated
public int[] intVarArray(int count,
                         double[] lb,
                         double[] ub,
                         java.lang.String[] name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of integer variables.

Parameters:

count - Number of variables to create.

lb - Lower bound for the variables, must match count.

ub - Upper bound for the variables, must match count.

name - Names for the variables, must match count. If null variables will be unnamed.

Returns:

The indices of the newly created variables.

intVarArray
```
@Deprecated
public int[] intVarArray(int count,
                         java.util.function.Function<java.lang.Integer,java.lang.Double> lb,
                         java.util.function.Function<java.lang.Integer,java.lang.Double> ub,
                         java.util.function.Function<java.lang.Integer,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of integer variables.

Parameters:

count - Number of variables to create.

lb - Function to create a lower bound from an index. This will be invoked with 0..count-1 to create a lower bound for each variable.

ub - Function to create an upper bound from an index. This will be invoked with 0..count-1 to create an upper bound for each variable.

name - Function that creates a name from an index. This will be invoked with arguments 0..count-1 to obtain a name for the newly created variables. Can be null in which case the variables will not have names.

Returns:

The indices of the newly created variables.

intVarArray
```
@Deprecated
public <T> int[] intVarArray(java.util.Collection<T> objs,
                             double lb,
                             double ub,
                             java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of integer variables. All the variables created by this function have the same types and bounds. The function will create one variable for each of the objects listed in objs.

Type Parameters:

T - The type of objects

Parameters:

objs - The objects. One variable will be created for each object in this collection.

lb - Lower bound for new variables.

ub - Upper bound for new variables.

name - Function to create a name from an object. This function will be invoked for all the objects from objs to generate a name for the respective variable. If null then variables will be unnamed.

Returns:

The indices of the newly created variables.

intVarArray
```
@Deprecated
public <T> int[] intVarArray(java.util.Collection<T> objs,
                             java.util.function.Function<T,java.lang.Double> lb,
                             java.util.function.Function<T,java.lang.Double> ub,
                             java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of integer variables. The function will create one variable for each of the objects listed in objs.

Type Parameters:

T - Type of the objects

Parameters:

objs - Objects for which to create variables.

lb - Function to create a lower bound for a variable. This will be invoked for each object in objs to generate a lower bound for the respective variable.

ub - Function to create a lower bound for a variable. This will be invoked for each object in objs to generate a lower bound for the respective variable.

name - Function to create a name for a variable. This function will be invoked for all the objects from objs to generate a name for the respective variable. If null then variables will be unnamed.

Returns:

Indices of the newly created variables.

intVarMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> intVarMap(java.util.Collection<T> objs,
                                                              java.util.function.Function<T,java.lang.Double> lb,
                                                              java.util.function.Function<T,java.lang.Double> ub,
                                                              java.util.function.Function<T,java.lang.String> name,
                                                              java.util.Map<T,java.lang.Integer> map)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of integer variables. The function creates a new variable for each object in objs. For each object o it puts the pair (o, idx) into map where idx is the index of the variable that was created for o.

Type Parameters:

T - The type of objects.

Parameters:

objs - Objects for which to create variables.

lb - Function to create lower bound for variables. This will be invoked for each object in objs to generate a lower bound for the corresponding variable.

ub - Function to create lower bound for variables. This will be invoked for each object in objs to generate an upper bound for the corresponding variable.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

map - The map to which new object,index pairs are added.

Returns:

Returns map.

intVarMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> intVarMap(java.util.Collection<T> objs,
                                                              java.util.function.Function<T,java.lang.Double> lb,
                                                              java.util.function.Function<T,java.lang.Double> ub,
                                                              java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of integer variables. The function creates a new variable for each object in objs. It returns a hash map in which each object in objs maps to the index of the variable that was created for it.

Type Parameters:

T - The type of objects.

Parameters:

objs - Objects for which to create variables.

lb - Function to create lower bound for variables. This will be invoked for each object in objs to generate a lower bound for the corresponding variable.

ub - Function to create lower bound for variables. This will be invoked for each object in objs to generate an upper bound for the corresponding variable.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

Returns:

Mapping of objects to variable indices.

binVar
```
@Deprecated
public int binVar()
```
Deprecated.
since 43.00, use addColumn() instead

Create a new binary variable.

Returns:

objects.Index of the newly created variable.

binVar
```
@Deprecated
public int binVar(java.lang.String name)
```
Deprecated.
since 43.00, use addColumn() instead

Create a new binary variable with the specified name.

Parameters:

name - objects.Variable name.

Returns:

objects.Index of the newly created variable.

binVarArray
```
@Deprecated
public int[] binVarArray(int count,
                         java.util.function.Function<java.lang.Integer,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of binary variables.

Parameters:

count - Number of variables to create.

name - Function that creates a name from an index. This will be invoked with arguments 0..count-1 to obtain a name for the newly created variables. Can be null in which case the variables will not have names.

Returns:

The indices of the newly created variables.

binVarArray
```
@Deprecated
public <T> int[] binVarArray(java.util.Collection<T> objs,
                             java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create an array of binary variables. The function will create one variable for each of the objects listed in objs.

Type Parameters:

T - The type of objects

Parameters:

objs - The objects. One variable will be created for each object in this collection.

name - Function to create a name from an object. This function will be invoked for all the objects from objs to generate a name for the respective variable. If null then variables will be unnamed.

Returns:

The indices of the newly created variables.

binVarMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> binVarMap(java.util.Collection<T> objs,
                                                              java.util.function.Function<T,java.lang.String> name,
                                                              java.util.Map<T,java.lang.Integer> map)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of binary variables. The function creates a new variable for each object in objs. For each object o it puts the pair (o, idx) into map where idx is the index of the variable that was created for o.

Type Parameters:

T - The type of objects.

Parameters:

objs - Objects for which to create variables.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

map - The map to which new object,index pairs are added.

Returns:

Returns map.

binVarMap
```
@Deprecated
public <T> java.util.Map<T,java.lang.Integer> binVarMap(java.util.Collection<T> objs,
                                                              java.util.function.Function<T,java.lang.String> name)
```
Deprecated.
since 43.00, use addColumns() instead

Create a map of binary variables. The function creates a new variable for each object in objs. It returns a hash map in which each object in objs maps to the index of the variable that was created for it.

Type Parameters:

T - The type of objects.

Parameters:

objs - Objects for which to create variables.

name - Function to create a variable name. This will be invoked for each object in objs to create a name for the corresponding variable. If null then variables will be unnamed.

Returns:

Mapping of objects to variable indices.

getNames
```
public void getNames(XPRSenumerations.Namespaces type,
                     java.lang.String[] names,
                     int first,
                     int last)
              throws XPRSexception
```
Get names. Retrieves names for a certain type of objects.

Parameters:

type - The type of object for which names should be retrieved.

names - Where to put the requested names.

first - objects.Index of first name to be retrieved.

last - objects.Index of last name to be retrieved.

Throws:

XPRSexception

Since:

43.00

See Also:

getNames(int, String[], int, int)

getNames
```
public java.lang.String[] getNames(int type,
                                   int first,
                                   int last)
                            throws XPRSexception
```
Get names. Retrieves names for a certain type of objects.

Parameters:

type - The type of object for which names should be retrieved.

first - objects.Index of first name to be retrieved.

last - objects.Index of last name to be retrieved.

Returns:

The requested names

Throws:

XPRSexception

See Also:

getNames(int, String[], int, int)

getNames
```
public java.lang.String[] getNames(XPRSenumerations.Namespaces type,
                                   int first,
                                   int last)
                            throws XPRSexception
```
Get names. Retrieves names for a certain type of objects.

Parameters:

type - The type of object for which names should be retrieved.

first - objects.Index of first name to be retrieved.

last - objects.Index of last name to be retrieved.

Returns:

The requested names

Throws:

XPRSexception

Since:

43.00

See Also:

getNames(int, String[], int, int)

getName
```
public java.lang.String getName(int type,
                                int elt)
                         throws XPRSexception
```
Get the name of a single element.
Examples using getName:
Parameters:

type - The type of the element.

elt - The index of the element.

Returns:

the element's name.

Throws:

XPRSexception

See Also:

getNames(int, String[], int, int)

getName
```
public java.lang.String getName(XPRSenumerations.Namespaces type,
                                int elt)
                         throws XPRSexception
```
Get the name of a single element.
Examples using getName:
Parameters:

type - The type of the element.

elt - The index of the element.

Returns:

the element's name.

Throws:

XPRSexception

Since:

43.00

See Also:

getNames(int, String[], int, int)

getRowNames
```
public java.lang.String[] getRowNames(int first,
                                      int last)
                               throws XPRSexception
```
Get names of rows.
Examples using getRowNames:
- Tableau.java
Parameters:

first - First row index (inclusive).

last - Last row index (inclusive).

Returns:

The names for the specified rows.

Throws:

XPRSexception

getRowName
```
public java.lang.String getRowName(int index)
                            throws XPRSexception
```
Get a row name.
Examples using getRowName:
- Repair.java
- Tableau.java
Parameters:

index - objects.Index of the row.

Returns:

The requested row's name.

Throws:

XPRSexception

getColumnNames
```
public java.lang.String[] getColumnNames(int first,
                                         int last)
                                  throws XPRSexception
```
Get names of columns.
Examples using getColumnNames:
- Tableau.java
Parameters:

first - First column index (inclusive).

last - Last column index (inclusive).

Returns:

The names for the specified columns.

Throws:

XPRSexception

getColumnName
```
public java.lang.String getColumnName(int index)
                               throws XPRSexception
```
Get a column name.
Examples using getColumnName:
- Repair.java
- Tableau.java
Parameters:

index - objects.Index of the column.

Returns:

The requested column's name.

Throws:

XPRSexception

getSetNames
```
public java.lang.String[] getSetNames(int first,
                                      int last)
                               throws XPRSexception
```
Get names of sets (SOS).

Parameters:

first - First set index (inclusive).

last - Last set index (inclusive).

Returns:

The names for the specified sets.

Throws:

XPRSexception

getSetName
```
public java.lang.String getSetName(int index)
                            throws XPRSexception
```
Get a set (SOS) name.

Parameters:

index - objects.Index of the set.

Returns:

The requested sets's name.

Throws:

XPRSexception

getPWLNames
```
public java.lang.String[] getPWLNames(int first,
                                      int last)
                               throws XPRSexception
```
Get names of PWL constraints.

Parameters:

first - First PWL index (inclusive).

last - Last PWL index (inclusive).

Returns:

The names for the specified PWL constraints.

Throws:

XPRSexception

getPWLName
```
public java.lang.String getPWLName(int index)
                            throws XPRSexception
```
Get a PWL constraint name.

Parameters:

index - objects.Index of the PWL constraint.

Returns:

The requested PWL constraint's name.

Throws:

XPRSexception

getGenConsNames
```
public java.lang.String[] getGenConsNames(int first,
                                          int last)
                                   throws XPRSexception
```
Get names of general constraints.

Parameters:

first - First general constraint index (inclusive).

last - Last general constraint index (inclusive).

Returns:

The names for the specified general constraints.

Throws:

XPRSexception

getGenConsName
```
public java.lang.String getGenConsName(int index)
                                throws XPRSexception
```
Get a general constraint name.

Parameters:

index - objects.Index of the general constraint.

Returns:

The requested general constraint's name.

Throws:

XPRSexception

getIISData
```
public XPRSprob.IISData getIISData(int number)
```
Get information about an IIS.
Examples using getIISData:
- IISExample.java
Parameters:

number - The index of the IIS to query.

Returns:

Information about the queried IIS.

IISStatus
```
public XPRSprob.IISStatusInfo IISStatus()
```
Get the IIS status.
Examples using IISStatus:
Returns:

IIS status information. If there are no IISs then the returned object will have all empty arrays.

getGenCons
```
public XPRSprob.GeneralConstraintInfo getGenCons(int first,
                                                 int last)
```
Query a range of general constraints.

Parameters:

first - First constraint index to query (inclusive).

last - Last constraint index to query (inclusive).

Returns:

The queried constraints.

addColumns
```
public VariableBuilder.ColumnArrayBuilder addColumns(int dim)
```
Create an 1-dimensional array of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toArray() function.
```
   // Create a multi-dimensional array of binary columns
   int[]  x = prob.addColumns(dim)
                  .withType(com.dashoptimization.objects.ColumnType.Binary)
                  .toArray();
  
```
See VariableBuilder.ColumnArrayBuilder for details of how to modify the specification in the builder.
Examples using addColumns:
Parameters:

dim - Dimension.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public <K1> VariableBuilder.ColumnMapBuilder<K1> addColumns(java.lang.Iterable<K1> iterable1)
```
Create an 1-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   java.util.HashMap<K1 ,Integer> x = prob.addColumns(iterable1 )
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMapBuilder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

Parameters:

iterable1 - Data for dimension 1.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public <K1> VariableBuilder.ColumnMapBuilder<K1> addColumns(K1[] arr1)
```
Create an 1-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   java.util.HashMap<K1 ,Integer> x = prob.addColumns(COLL_PASS)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMapBuilder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

Parameters:

arr1 - Data for the builder.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public <K1> VariableBuilder.ColumnMapBuilder<K1> addColumns(java.util.stream.Stream<K1> strm)
```
Create an 1-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   java.util.HashMap<K1 ,Integer> x = prob.addColumns(COLL_PASS)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMapBuilder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

Returns:

A builder that will create the columns.

Since:

43.00

addColumn
```
public int addColumn(double lb,
                     double ub,
                     ColumnType type,
                     java.lang.String name)
```
Add a single column to this problem.
Examples using addColumn:
Parameters:

lb - Lower bound for new column.

ub - Upper bound for new column.

type - Type for new column.

name - Name for new column, can be null.

Since:

43.00

addColumns
```
public VariableBuilder.ColumnArray2Builder addColumns(int dim1,
                                                      int dim2)
```
Create an 2-dimensional array of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toArray() function.
```
   // Create a multi-dimensional array of binary columns
   int[] [] x = prob.addColumns(dim1 ,dim2)
                  .withType(com.dashoptimization.objects.ColumnType.Binary)
                  .toArray();
  
```
See VariableBuilder.ColumnArray2Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Parameters:

dim1 - Dimension 1.

dim2 - Dimension 2.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public <K1,K2> VariableBuilder.ColumnMap2Builder<K1,K2> addColumns(java.lang.Iterable<K1> iterable1,
                                                                               java.lang.Iterable<K2> iterable2)
```
Create an 2-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap2<K1 ,K2,Integer> x = prob.addColumns(iterable1 ,iterable2)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMap2Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

K2 - Data type for dimension 2.

Parameters:

iterable1 - Data for dimension 1.

iterable2 - Data for dimension 2.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public <K1,K2> VariableBuilder.ColumnMap2Builder<K1,K2> addColumns(K1[] arr1,
                                                                               K2[] arr2)
```
Create an 2-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap2<K1 ,K2,Integer> x = prob.addColumns(COLL_PASS)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMap2Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

K2 - Data type for dimension 2.

Parameters:

arr1 - Data for the builder.

arr2 - Data for the builder.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public VariableBuilder.ColumnArray3Builder addColumns(int dim1,
                                                      int dim2,
                                                      int dim3)
```
Create an 3-dimensional array of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toArray() function.
```
   // Create a multi-dimensional array of binary columns
   int[] [] [] x = prob.addColumns(dim1 ,dim2 ,dim3)
                  .withType(com.dashoptimization.objects.ColumnType.Binary)
                  .toArray();
  
```
See VariableBuilder.ColumnArray3Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Parameters:

dim1 - Dimension 1.

dim2 - Dimension 2.

dim3 - Dimension 3.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public <K1,K2,K3> VariableBuilder.ColumnMap3Builder<K1,K2,K3> addColumns(java.lang.Iterable<K1> iterable1,
                                                                                                 java.lang.Iterable<K2> iterable2,
                                                                                                 java.lang.Iterable<K3> iterable3)
```
Create an 3-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap3<K1 ,K2 ,K3,Integer> x = prob.addColumns(iterable1 ,iterable2 ,iterable3)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMap3Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

K2 - Data type for dimension 2.

K3 - Data type for dimension 3.

Parameters:

iterable1 - Data for dimension 1.

iterable2 - Data for dimension 2.

iterable3 - Data for dimension 3.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public <K1,K2,K3> VariableBuilder.ColumnMap3Builder<K1,K2,K3> addColumns(K1[] arr1,
                                                                                                 K2[] arr2,
                                                                                                 K3[] arr3)
```
Create an 3-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap3<K1 ,K2 ,K3,Integer> x = prob.addColumns(COLL_PASS)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMap3Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

K2 - Data type for dimension 2.

K3 - Data type for dimension 3.

Parameters:

arr1 - Data for the builder.

arr2 - Data for the builder.

arr3 - Data for the builder.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public VariableBuilder.ColumnArray4Builder addColumns(int dim1,
                                                      int dim2,
                                                      int dim3,
                                                      int dim4)
```
Create an 4-dimensional array of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toArray() function.
```
   // Create a multi-dimensional array of binary columns
   int[] [] [] [] x = prob.addColumns(dim1 ,dim2 ,dim3 ,dim4)
                  .withType(com.dashoptimization.objects.ColumnType.Binary)
                  .toArray();
  
```
See VariableBuilder.ColumnArray4Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Parameters:

dim1 - Dimension 1.

dim2 - Dimension 2.

dim3 - Dimension 3.

dim4 - Dimension 4.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns

public <K1,K2,K3,K4> VariableBuilder.ColumnMap4Builder<K1,K2,K3,K4> addColumns(java.lang.Iterable<K1> iterable1,
                                                                                                                   java.lang.Iterable<K2> iterable2,
                                                                                                                   java.lang.Iterable<K3> iterable3,
                                                                                                                   java.lang.Iterable<K4> iterable4)

Create an 4-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.

   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap4<K1 ,K2 ,K3 ,K4,Integer> x = prob.addColumns(iterable1 ,iterable2 ,iterable3 ,iterable4)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();

See VariableBuilder.ColumnMap4Builder for details of how to modify the specification in the builder.

Examples using addColumns:

Type Parameters:: K1 - Data type for dimension 1.; K2 - Data type for dimension 2.; K3 - Data type for dimension 3.; K4 - Data type for dimension 4.
Parameters:: iterable1 - Data for dimension 1.; iterable2 - Data for dimension 2.; iterable3 - Data for dimension 3.; iterable4 - Data for dimension 4.
Returns:: A builder that will create the columns.
Since:: 43.00

addColumns
```
public <K1,K2,K3,K4> VariableBuilder.ColumnMap4Builder<K1,K2,K3,K4> addColumns(K1[] arr1,
                                                                                                                   K2[] arr2,
                                                                                                                   K3[] arr3,
                                                                                                                   K4[] arr4)
```
Create an 4-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.
```
   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap4<K1 ,K2 ,K3 ,K4,Integer> x = prob.addColumns(COLL_PASS)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();
  
```
See VariableBuilder.ColumnMap4Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Type Parameters:

K1 - Data type for dimension 1.

K2 - Data type for dimension 2.

K3 - Data type for dimension 3.

K4 - Data type for dimension 4.

Parameters:

arr1 - Data for the builder.

arr2 - Data for the builder.

arr3 - Data for the builder.

arr4 - Data for the builder.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns
```
public VariableBuilder.ColumnArray5Builder addColumns(int dim1,
                                                      int dim2,
                                                      int dim3,
                                                      int dim4,
                                                      int dim5)
```
Create an 5-dimensional array of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toArray() function.
```
   // Create a multi-dimensional array of binary columns
   int[] [] [] [] [] x = prob.addColumns(dim1 ,dim2 ,dim3 ,dim4 ,dim5)
                  .withType(com.dashoptimization.objects.ColumnType.Binary)
                  .toArray();
  
```
See VariableBuilder.ColumnArray5Builder for details of how to modify the specification in the builder.
Examples using addColumns:
Parameters:

dim1 - Dimension 1.

dim2 - Dimension 2.

dim3 - Dimension 3.

dim4 - Dimension 4.

dim5 - Dimension 5.

Returns:

A builder that will create the columns.

Since:

43.00

addColumns

public <K1,K2,K3,K4,K5> VariableBuilder.ColumnMap5Builder<K1,K2,K3,K4,K5> addColumns(java.lang.Iterable<K1> iterable1,
                                                                                                                                     java.lang.Iterable<K2> iterable2,
                                                                                                                                     java.lang.Iterable<K3> iterable3,
                                                                                                                                     java.lang.Iterable<K4> iterable4,
                                                                                                                                     java.lang.Iterable<K5> iterable5)

Create an 5-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.

   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap5<K1 ,K2 ,K3 ,K4 ,K5,Integer> x = prob.addColumns(iterable1 ,iterable2 ,iterable3 ,iterable4 ,iterable5)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();

See VariableBuilder.ColumnMap5Builder for details of how to modify the specification in the builder.

Examples using addColumns:

Type Parameters:: K1 - Data type for dimension 1.; K2 - Data type for dimension 2.; K3 - Data type for dimension 3.; K4 - Data type for dimension 4.; K5 - Data type for dimension 5.
Parameters:: iterable1 - Data for dimension 1.; iterable2 - Data for dimension 2.; iterable3 - Data for dimension 3.; iterable4 - Data for dimension 4.; iterable5 - Data for dimension 5.
Returns:: A builder that will create the columns.
Since:: 43.00

addColumns

public <K1,K2,K3,K4,K5> VariableBuilder.ColumnMap5Builder<K1,K2,K3,K4,K5> addColumns(K1[] arr1,
                                                                                                                                     K2[] arr2,
                                                                                                                                     K3[] arr3,
                                                                                                                                     K4[] arr4,
                                                                                                                                     K5[] arr5)

Create an 5-dimensional map of columns. This function returns a builder that generates columns according to a specification. The specification can be modified. In order to actually create the columns and get their indices, you have to call the returned builder's toMap() function.

   // Create a multi-dimensional array of binary columns
   com.dashoptimization.maps.HashMap5<K1 ,K2 ,K3 ,K4 ,K5,Integer> x = prob.addColumns(COLL_PASS)
                                      .withType(com.dashoptimization.objects.ColumnType.Binary)
                                      .toMap();

See VariableBuilder.ColumnMap5Builder for details of how to modify the specification in the builder.

Examples using addColumns:

Type Parameters:: K1 - Data type for dimension 1.; K2 - Data type for dimension 2.; K3 - Data type for dimension 3.; K4 - Data type for dimension 4.; K5 - Data type for dimension 5.
Parameters:: arr1 - Data for the builder.; arr2 - Data for the builder.; arr3 - Data for the builder.; arr4 - Data for the builder.; arr5 - Data for the builder.
Returns:: A builder that will create the columns.
Since:: 43.00

copyProb

public void copyProb(XPRSprob src)
              throws XPRSprobException

Copy another problem over this one

Throws:: XPRSprobException

setProbname
```
public void setProbname(java.lang.String probname)
                 throws XPRSprobException
```
Sets the current problem name.
Examples using setProbname:
- AddMipSol.java
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing the problem name.

Throws:

XPRSprobException

setLogFile
```
public void setLogFile(java.lang.String filename)
                throws XPRSprobException
```
This directs all Optimizer output to a log file.
Examples using setLogFile:
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name to which all logging output should be written. If set to null, redirection of the output will stop.

Throws:

XPRSprobException

setDefaultControl
```
public void setDefaultControl(int control)
                       throws XPRSprobException
```
Sets a single control to its default value.

Parameters:

control - Integer, double or string control parameter whose default value is to be set.

Throws:

XPRSprobException

setDefaults
```
public void setDefaults()
                 throws XPRSprobException
```
Sets all controls to their default values.
Examples using setDefaults:
- AddMipSol.java
Throws:

XPRSprobException

readProb
```
public void readProb(java.lang.String filename,
                     java.lang.String flags)
              throws XPRSprobException
```
Reads an (X)MPS or LP format matrix from file.
Examples using readProb:
Parameters:

filename - The path and file name from which the problem is to be read. Limited to MAXPROBNAMELENGTH characters. If omitted, the default problem_name is used with various extensions - see below.
flags - Flags to be passed:
- l: only filename.lp is searched for;
- v: use the provided filename verbatim, without appending the .mps, .mat or .lp extension;
- z: read a compressed input file.
Throws:

XPRSprobException

readProb
```
public void readProb(java.lang.String filename)
              throws XPRSprobException
```
Convenience wrapper for readProb(String, String).

Throws:

XPRSprobException

See Also:

readProb(String, String)

loadLp
```
public void loadLp(java.lang.String probname,
                   int ncols,
                   int nrows,
                   byte[] rowtype,
                   double[] rhs,
                   double[] rng,
                   double[] objcoef,
                   int[] start,
                   int[] collen,
                   int[] rowind,
                   double[] rowcoef,
                   double[] lb,
                   double[] ub)
            throws XPRSprobException
```
Enables the user to pass a matrix directly to the Optimizer, rather than reading the matrix from a file.
Examples using loadLp:
- LoadLP.java
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if not required. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

Throws:

XPRSprobException

loadLp
```
public void loadLp(java.lang.String probname,
                   int ncols,
                   int nrows,
                   byte[] rowtype,
                   double[] rhs,
                   double[] rng,
                   double[] objcoef,
                   long[] start,
                   int[] collen,
                   int[] rowind,
                   double[] rowcoef,
                   double[] lb,
                   double[] ub)
            throws XPRSprobException
```
Enables the user to pass a matrix directly to the Optimizer, rather than reading the matrix from a file.
Examples using loadLp:
- LoadLP.java
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if not required. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

Throws:

XPRSprobException

loadQP
```
public void loadQP(java.lang.String probname,
                   int ncols,
                   int nrows,
                   byte[] rowtype,
                   double[] rhs,
                   double[] rng,
                   double[] objcoef,
                   int[] start,
                   int[] collen,
                   int[] rowind,
                   double[] rowcoef,
                   double[] lb,
                   double[] ub,
                   int nobjqcoefs,
                   int[] objqcol1,
                   int[] objqcol2,
                   double[] objqcoef)
            throws XPRSprobException
```
Used to load a quadratic problem into the Optimizer data structure. Such a problem may have quadratic terms in its objective function, although not in its constraints.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if there are no ranged constraints. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

Throws:

XPRSprobException

loadQP
```
public void loadQP(java.lang.String probname,
                   int ncols,
                   int nrows,
                   byte[] rowtype,
                   double[] rhs,
                   double[] rng,
                   double[] objcoef,
                   long[] start,
                   int[] collen,
                   int[] rowind,
                   double[] rowcoef,
                   double[] lb,
                   double[] ub,
                   long nobjqcoefs,
                   int[] objqcol1,
                   int[] objqcol2,
                   double[] objqcoef)
            throws XPRSprobException
```
Used to load a quadratic problem into the Optimizer data structure. Such a problem may have quadratic terms in its objective function, although not in its constraints.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if there are no ranged constraints. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

Throws:

XPRSprobException

loadMIQP
```
public void loadMIQP(java.lang.String probname,
                     int ncols,
                     int nrows,
                     byte[] rowtype,
                     double[] rhs,
                     double[] rng,
                     double[] objcoef,
                     int[] start,
                     int[] collen,
                     int[] rowind,
                     double[] rowcoef,
                     double[] lb,
                     double[] ub,
                     int nobjqcoefs,
                     int[] objqcol1,
                     int[] objqcol2,
                     double[] objqcoef,
                     int nentities,
                     int nsets,
                     byte[] coltype,
                     int[] entind,
                     double[] limit,
                     byte[] settype,
                     int[] setstart,
                     int[] setind,
                     double[] refval)
              throws XPRSprobException
```
Used to load a MIQP problem, hence a MIP with quadratic objective coefficients, into the Optimizer data structures. Integer, binary, partial integer, semi-continuous and semi-continuous integer variables can be defined, together with sets of type 1 and 2. The reference row values for the set members are passed as an array rather than specifying a reference row.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row type:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. The values in the range array will only be read for R type rows. The entries for other type rows will be ignored. May be null if not required. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

nentities - Number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities.

nsets - Number of SOS1 and SOS2 sets.
coltype - Character array of length nentities containing the entity types:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integers.
May be null if all variables are continuous.
entind - Integer array of length nentities containing the column indices of the MIP entities. May be null if the problem contains no entities.

limit - Double array of length nentities containing the integer limits for the partial integer variables and lower bounds for semi-continuous and semi-continuous integer variables (any entries in the positions corresponding to binary and integer variables will be ignored). May be null if not required.
settype - Character array of length nsets containing:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
setstart - Integer array containing the offsets in the setind and refval arrays indicating the start of each set. This array has one entry for each set plus one extra entry containing the offset where an additional set would start, if it were present. May be null if not required.

setind - Integer array of length setstart[nsets]-1 containing the columns in each set. May be null if not required.

refval - Double array of length setstart[nsets]-1 containing the reference row entries for each member of the sets. These define the order for SOS2 constraints and may be used in branching for both types. May be null if not required.

Throws:

XPRSprobException

loadMIQP
```
public void loadMIQP(java.lang.String probname,
                     int ncols,
                     int nrows,
                     byte[] rowtype,
                     double[] rhs,
                     double[] rng,
                     double[] objcoef,
                     long[] start,
                     int[] collen,
                     int[] rowind,
                     double[] rowcoef,
                     double[] lb,
                     double[] ub,
                     long nobjqcoefs,
                     int[] objqcol1,
                     int[] objqcol2,
                     double[] objqcoef,
                     int nentities,
                     int nsets,
                     byte[] coltype,
                     int[] entind,
                     double[] limit,
                     byte[] settype,
                     long[] setstart,
                     int[] setind,
                     double[] refval)
              throws XPRSprobException
```
Used to load a MIQP problem, hence a MIP with quadratic objective coefficients, into the Optimizer data structures. Integer, binary, partial integer, semi-continuous and semi-continuous integer variables can be defined, together with sets of type 1 and 2. The reference row values for the set members are passed as an array rather than specifying a reference row.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row type:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. The values in the range array will only be read for R type rows. The entries for other type rows will be ignored. May be null if not required. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

nentities - Number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities.

nsets - Number of SOS1 and SOS2 sets.
coltype - Character array of length nentities containing the entity types:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integers.
May be null if all variables are continuous.
entind - Integer array of length nentities containing the column indices of the MIP entities. May be null if the problem contains no entities.

limit - Double array of length nentities containing the integer limits for the partial integer variables and lower bounds for semi-continuous and semi-continuous integer variables (any entries in the positions corresponding to binary and integer variables will be ignored). May be null if not required.
settype - Character array of length nsets containing:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
setstart - Integer array containing the offsets in the setind and refval arrays indicating the start of each set. This array has one entry for each set plus one extra entry containing the offset where an additional set would start, if it were present. May be null if not required.

setind - Integer array of length setstart[nsets]-1 containing the columns in each set. May be null if not required.

refval - Double array of length setstart[nsets]-1 containing the reference row entries for each member of the sets. These define the order for SOS2 constraints and may be used in branching for both types. May be null if not required.

Throws:

XPRSprobException

fixMIPEntities
```
public void fixMIPEntities(int options)
                    throws XPRSprobException
```
Fixes all the MIP entities to the values of the last found MIP solution. This is useful for finding the reduced costs for the continuous variables after the integer variables have been fixed to their optimal values.
Parameters:
options - Options how to fix the MIP entities.
- 0: If all MIP entities should be rounded to the nearest discrete value in the solution before being fixed.
- 1: If piecewise linear and general constraints as well as partial integers should be kept in the problem with only the non-convex decisions (i.e. which part of a non-convex piecewise linear function, which variable attains a maximum or the integer part of the partial integer) fixed. Otherwise all variables appearing in piecewise linear or general constraints and all partial integers will be fixed.
Throws:

XPRSprobException

loadModelCuts
```
public void loadModelCuts(int nrows,
                          int[] rowind)
                   throws XPRSprobException
```
Specifies that a set of rows in the matrix will be treated as model cuts.

Parameters:

nrows - The number of model cuts.

rowind - An array of row indices to be treated as cuts.

Throws:

XPRSprobException

loadDelayedRows
```
public void loadDelayedRows(int nrows,
                            int[] rowind)
                     throws XPRSprobException
```
Specifies that a set of rows in the matrix will be treated as delayed rows during a tree search. These are rows that must be satisfied for any integer solution, but will not be loaded into the active set of constraints until required.

Parameters:

nrows - The number of delayed rows.

rowind - An array of row indices to treat as delayed rows.

Throws:

XPRSprobException

loadDirs
```
public void loadDirs(int ndirs,
                     int[] colind,
                     int[] priority,
                     byte[] dir,
                     double[] uppseudo,
                     double[] downpseudo)
              throws XPRSprobException
```
Loads directives into the matrix.
Examples using loadDirs:
- Trimloss.java
Parameters:

ndirs - Number of directives.

colind - Integer array of length ndirs containing the column numbers. A negative value indicates a set number (the first set being -1, the second -2, and so on).

priority - Integer array of length ndirs containing the priorities for the columns or sets. Priorities must be between 0 and 1000, where columns/sets with smallest priority will be branched on first. May be null if not required.
dir - Character array of length ndirs specifying the branching direction for each column or set:
- U: the entity is to be forced up;
- D: the entity is to be forced down;
- N: not specified.
May be null if not required.
uppseudo - Double array of length ndirs containing the up pseudo costs for the columns or sets. May be null if not required.

downpseudo - Double array of length ndirs containing the down pseudo costs for the columns or sets. May be null if not required.

Throws:

XPRSprobException

loadBranchDirs
```
public void loadBranchDirs(int ncols,
                           int[] colind,
                           int[] dir)
                    throws XPRSprobException
```
Loads directives into the current problem to specify which MIP entities the Optimizer should continue to branch on when a node solution is integer feasible.

Parameters:

ncols - Number of directives.

colind - Integer array of length ncols containing the column numbers. A negative value indicates a set number (the first set being -1, the second -2, and so on).

dir - Integer array of length ncols containing either 0 or 1 for the entities given in colind. Entities for which dir is set to 1 will be branched on until fixed before an integer feasible solution is returned. If dir is null, the branching directive will be set for all entities in colind.

Throws:

XPRSprobException

loadBranchDirs
```
public void loadBranchDirs(int x,
                           int value)
                    throws XPRSprobException
```
Convenience wrapper for loadBranchDirs(int, int[], int[]). This function only modifies a single element.

Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

loadBranchDirs(int, int[], int[])

loadPresolveDirs
```
public void loadPresolveDirs(int ndirs,
                             int[] colind,
                             int[] priority,
                             byte[] dir,
                             double[] uppseudo,
                             double[] downpseudo)
                      throws XPRSprobException
```
Loads directives into the presolved matrix.
Parameters:

ndirs - Number of directives.

colind - Integer array of length ndirs containing the column numbers. A negative value indicates a set number ( -1 being the first set, -2 the second, and so on).

priority - Integer array of length ndirs containing the priorities for the columns or sets. May be null if not required.
dir - Character array of length ndirs specifying the branching direction for each column or set:
- U: the entity is to be forced up;
- D: the entity is to be forced down;
- N: not specified.
May be null if not required.
uppseudo - Double array of length ndirs containing the up pseudo costs for the columns or sets. May be null if not required.

downpseudo - Double array of length ndirs containing the down pseudo costs for the columns or sets. May be null if not required.

Throws:

XPRSprobException

loadMIP
```
public void loadMIP(java.lang.String probname,
                    int ncols,
                    int nrows,
                    byte[] rowtype,
                    double[] rhs,
                    double[] rng,
                    double[] objcoef,
                    int[] start,
                    int[] collen,
                    int[] rowind,
                    double[] rowcoef,
                    double[] lb,
                    double[] ub,
                    int nentities,
                    int nsets,
                    byte[] coltype,
                    int[] entind,
                    double[] limit,
                    byte[] settype,
                    int[] setstart,
                    int[] setind,
                    double[] refval)
             throws XPRSprobException
```
Used to load a MIP problem into the Optimizer data structures. Integer, binary, partial integer, semi-continuous and semi-continuous integer variables can be defined, together with sets of type 1 and 2. The reference row values for the set members are passed as an array rather than specifying a reference row.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix not (including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if not required. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nentities - Number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities.

nsets - Number of SOS1 and SOS2 sets.
coltype - Character array of length nentities containing the entity types:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integer variables.
May be null if all variables are continuous.
entind - Integer array of length nentities containing the column indices of the MIP entities. May be null if the problem contains no entities.

limit - Double array of length nentities containing the integer limits for the partial integer variables and lower bounds for semi-continuous and semi-continuous integer variables (any entries in the positions corresponding to binary and integer variables will be ignored). May be null if not required.
settype - Character array of length nsets containing the set types:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
setstart - Integer array containing the offsets in the setind and refval arrays indicating the start of each set. This array has one entry for each set plus one extra entry containing the offset where an additional set would start, if it were present. May be null if not required.

setind - Integer array of length setstart[nsets]-1 containing the columns in each set. May be null if not required.

refval - Double array of length setstart[nsets]-1 containing the reference row entries for each member of the sets. These define the order for SOS2 constraints and may be used in branching for both types. May be null if not required.

Throws:

XPRSprobException

loadMIP
```
public void loadMIP(java.lang.String probname,
                    int ncols,
                    int nrows,
                    byte[] rowtype,
                    double[] rhs,
                    double[] rng,
                    double[] objcoef,
                    long[] start,
                    int[] collen,
                    int[] rowind,
                    double[] rowcoef,
                    double[] lb,
                    double[] ub,
                    int nentities,
                    int nsets,
                    byte[] coltype,
                    int[] entind,
                    double[] limit,
                    byte[] settype,
                    long[] setstart,
                    int[] setind,
                    double[] refval)
             throws XPRSprobException
```
Used to load a MIP problem into the Optimizer data structures. Integer, binary, partial integer, semi-continuous and semi-continuous integer variables can be defined, together with sets of type 1 and 2. The reference row values for the set members are passed as an array rather than specifying a reference row.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix not (including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if not required. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nentities - Number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities.

nsets - Number of SOS1 and SOS2 sets.
coltype - Character array of length nentities containing the entity types:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integer variables.
May be null if all variables are continuous.
entind - Integer array of length nentities containing the column indices of the MIP entities. May be null if the problem contains no entities.

limit - Double array of length nentities containing the integer limits for the partial integer variables and lower bounds for semi-continuous and semi-continuous integer variables (any entries in the positions corresponding to binary and integer variables will be ignored). May be null if not required.
settype - Character array of length nsets containing the set types:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
setstart - Integer array containing the offsets in the setind and refval arrays indicating the start of each set. This array has one entry for each set plus one extra entry containing the offset where an additional set would start, if it were present. May be null if not required.

setind - Integer array of length setstart[nsets]-1 containing the columns in each set. May be null if not required.

refval - Double array of length setstart[nsets]-1 containing the reference row entries for each member of the sets. These define the order for SOS2 constraints and may be used in branching for both types. May be null if not required.

Throws:

XPRSprobException

scale
```
public void scale(int[] rowscale,
                  int[] colscale)
           throws XPRSprobException
```
Re-scales the current matrix.

Parameters:

rowscale - Integer array of size ROWS containing the powers of 2 with which to scale the rows, or null if not required.

colscale - Integer array of size COLS containing the powers of 2 with which to scale the columns, or null if not required.

Throws:

XPRSprobException

readDirs
```
public void readDirs(java.lang.String filename)
              throws XPRSprobException
```
Reads a directives file to help direct the tree search.

Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name from which the directives are to be read. If omitted (or null), the default problem_name is used with a .dir extension.

Throws:

XPRSprobException

readDirs
```
public void readDirs()
              throws XPRSprobException
```
Convenience wrapper for readDirs(String).

Throws:

XPRSprobException

See Also:

readDirs(String)

writeDirs
```
public void writeDirs(java.lang.String filename)
               throws XPRSprobException
```
Writes the tree search directives from the current problem to a directives file.

Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name to which the directives should be written. If omitted (or null), the default problem_name is used with a .dir extension.

Throws:

XPRSprobException

writeDirs
```
public void writeDirs()
               throws XPRSprobException
```
Convenience wrapper for writeDirs(String).

Throws:

XPRSprobException

See Also:

writeDirs(String)

unloadProb
```
@Deprecated
public void unloadProb()
                throws XPRSprobException
```
Deprecated.
since 45.00.

Unloads and frees all memory associated with the current problem. It also invalidates the current problem (as opposed to reading in an empty problem).

Throws:

XPRSprobException

setIndicators
```
public void setIndicators(int nrows,
                          int[] rowind,
                          int[] colind,
                          int[] complement)
                   throws XPRSprobException
```
Specifies that a set of rows in the matrix will be treated as indicator constraints during a tree search. An indicator constraint is made of a condition and a constraint. The condition is of the type "bin = value", where bin is a binary variable and value is either 0 or 1. The constraint is any matrix row (may be linear, quadratic or general nonlinear). During tree search, a row configured as an indicator constraint is enforced only when condition holds, that is only if the indicator variable bin has the specified value. Note that every row may only get assigned a single indicator variable and term. If a row needs to be activated by multiple different terms, the row needs to be duplicated so that each term can be assigned to a distinct row. If the indicator variable should be changed, the old term needs to be deleted first (by calling delIndicators or by calling this function with a comps argument of 0) before assigning a new one.
Parameters:

nrows - The number of indicator constraints.

rowind - Integer array of length nrows containing the indices of the rows that define the constraint part for the indicator constraints.

colind - Integer array of length nrows containing the column indices of the indicator variables.
complement - Integer array of length nrows with the complement flags:
- 0: not an indicator constraint (in this case the corresponding entry in the colind array is ignored);
- 1: for indicator constraints with condition "bin = 1";
- -1: for indicator constraints with condition "bin = 0".
Throws:

XPRSprobException

addPwlCons
```
public void addPwlCons(int npwls,
                       int npoints,
                       int[] colind,
                       int[] resultant,
                       int[] start,
                       double[] xval,
                       double[] yval)
                throws XPRSprobException
```
Adds one or more piecewise linear constraints to the problem. Each piecewise linear constraint y = f(x) consists of an (input) column x, a (different) resultant (output column) y and a piecewise linear function f. The piecewise linear function f is described by at least two breakpoints, which are given as combinations of x- and y-values. Discontinuous piecewise linear functions are supported, in this case both the left and right limit at a given point need to be entered as breakpoints. To differentiate between left and right limit, the breakpoints need to be given as a list with non-decreasing x-values.

Parameters:

npwls - The number of piecewise linear constraints to add.

npoints - The total number of breakpoints of all piecewise linear constraints that should be added.

colind - Integer array of length npwls containing the indices of the input variables x of the piecewise linear functions.

resultant - Integer array of length npwls containing the indices of the output variables y of the piecewise linear functions.

start - Integer array of length npwls containing the start index of each piecewise linear constraint in the xval and yval arrays.

xval - Double array of length npoints containing the x-values of the breakpoints.

yval - Double array of length npoints containing the y-values of the breakpoints.

Throws:

XPRSprobException

addPwlCons
```
public void addPwlCons(int npwls,
                       long npoints,
                       int[] colind,
                       int[] resultant,
                       long[] start,
                       double[] xval,
                       double[] yval)
                throws XPRSprobException
```
Adds one or more piecewise linear constraints to the problem. Each piecewise linear constraint y = f(x) consists of an (input) column x, a (different) resultant (output column) y and a piecewise linear function f. The piecewise linear function f is described by at least two breakpoints, which are given as combinations of x- and y-values. Discontinuous piecewise linear functions are supported, in this case both the left and right limit at a given point need to be entered as breakpoints. To differentiate between left and right limit, the breakpoints need to be given as a list with non-decreasing x-values.

Parameters:

npwls - The number of piecewise linear constraints to add.

npoints - The total number of breakpoints of all piecewise linear constraints that should be added.

colind - Integer array of length npwls containing the indices of the input variables x of the piecewise linear functions.

resultant - Integer array of length npwls containing the indices of the output variables y of the piecewise linear functions.

start - Integer array of length npwls containing the start index of each piecewise linear constraint in the xval and yval arrays.

xval - Double array of length npoints containing the x-values of the breakpoints.

yval - Double array of length npoints containing the y-values of the breakpoints.

Throws:

XPRSprobException

getPwlCons
```
public void getPwlCons(int[] colind,
                       int[] resultant,
                       int[] start,
                       double[] xval,
                       double[] yval,
                       int maxpoints,
                       IntHolder p_npoints,
                       int first,
                       int last)
                throws XPRSprobException
```
Returns the piecewise linear constraints y = f(x) in a given range.

Parameters:

colind - Integer array which will be filled with the indices of the input variables x. It must be of length last-first+1. May be null if not required.

resultant - Integer array which will be filled with the indices of the output variables y. It must be of length last-first+1. May be null if not required.

start - Integer array which will be filled with the start indices of the different constraints in the breakpoint arrays. It must be of length last-first+2. The x-values of the breakpoints of piecewise linear constraint i < last will be given in xval[start[i]] to xval[start[i+1]]. May be null if not required.

xval - Double array of length maxpoints which will be filled with the x-values of the breakpoints. May be null if not required.

yval - Double array of length maxpoints which will be filled with the y-values of the breakpoints. May be null if not required.

maxpoints - Maximum number of breakpoints to be retrieved.

p_npoints - Pointer to return the number of breakpoints in the selected constraints. If the number of breakpoints is greater than maxpoints, then only maxpoints elements will be returned in the xval and yval arrays. May be null if not required.

first - First piecewise linear constraint in the range.

last - Last piecewise linear constraint in the range.

Throws:

XPRSprobException

getPwlCons
```
public void getPwlCons(int[] colind,
                       int[] resultant,
                       long[] start,
                       double[] xval,
                       double[] yval,
                       long maxpoints,
                       LongHolder p_npoints,
                       int first,
                       int last)
                throws XPRSprobException
```
Returns the piecewise linear constraints y = f(x) in a given range.

Parameters:

colind - Integer array which will be filled with the indices of the input variables x. It must be of length last-first+1. May be null if not required.

resultant - Integer array which will be filled with the indices of the output variables y. It must be of length last-first+1. May be null if not required.

start - Integer array which will be filled with the start indices of the different constraints in the breakpoint arrays. It must be of length last-first+2. The x-values of the breakpoints of piecewise linear constraint i < last will be given in xval[start[i]] to xval[start[i+1]]. May be null if not required.

xval - Double array of length maxpoints which will be filled with the x-values of the breakpoints. May be null if not required.

yval - Double array of length maxpoints which will be filled with the y-values of the breakpoints. May be null if not required.

maxpoints - Maximum number of breakpoints to be retrieved.

p_npoints - Pointer to return the number of breakpoints in the selected constraints. If the number of breakpoints is greater than maxpoints, then only maxpoints elements will be returned in the xval and yval arrays. May be null if not required.

first - First piecewise linear constraint in the range.

last - Last piecewise linear constraint in the range.

Throws:

XPRSprobException

addGenCons
```
public void addGenCons(int ncons,
                       int ncols,
                       int nvals,
                       XPRSenumerations.GenConsType[] contype,
                       int[] resultant,
                       int[] colstart,
                       int[] colind,
                       int[] valstart,
                       double[] val)
                throws XPRSprobException
```
Adds one or more general constraints to the problem. Each general constraint y = f(x1, ..., xn, c1, ..., cn) consists of one or more (input) columns xi, zero or more constant values ci and a resultant (output column) y, different from all xi. General constraints include maximum and minimum (arbitrary number of input columns of any type and arbitrary number of input values, at least one total), and and or (at least one binary input column, no constant values, binary resultant) and absolute value (exactly one input column of arbitrary type, no constant values).
Parameters:

ncons - The number of general constraints to add.

ncols - The total number of input variables in general constraints that should be added.

nvals - The total number of constant values in general constraints that should be added.
contype - Integer array of length ncons containing the types of the general constraints:
- XPRS_GENCONS_MAX (0): indicates a maximum constraint;
- XPRS_GENCONS_MIN (1): indicates a minimum constraint;
- XPRS_GENCONS_AND (2): indicates an and constraint.
- XPRS_GENCONS_OR (3): indicates an or constraint;
- XPRS_GENCONS_ABS (4): indicates an absolute value constraint.
resultant - Integer array of length ncons containing the indices of the output variables of the general constraints.

colstart - Integer array of length ncons containing the start index of each general constraint in the colind array.

colind - Integer array of length ncols containing the input variables in all general constraints.

valstart - Integer array of length ncons containing the start index of each general constraint in the val array (may be nullif nvals = 0).

val - Double array of length nvals containing the constant values in all general constraints (may be nullif nvals = 0).

Throws:

XPRSprobException

addGenCons
```
public void addGenCons(int ncons,
                       long ncols,
                       long nvals,
                       XPRSenumerations.GenConsType[] contype,
                       int[] resultant,
                       long[] colstart,
                       int[] colind,
                       long[] valstart,
                       double[] val)
                throws XPRSprobException
```
Adds one or more general constraints to the problem. Each general constraint y = f(x1, ..., xn, c1, ..., cn) consists of one or more (input) columns xi, zero or more constant values ci and a resultant (output column) y, different from all xi. General constraints include maximum and minimum (arbitrary number of input columns of any type and arbitrary number of input values, at least one total), and and or (at least one binary input column, no constant values, binary resultant) and absolute value (exactly one input column of arbitrary type, no constant values).
Parameters:

ncons - The number of general constraints to add.

ncols - The total number of input variables in general constraints that should be added.

nvals - The total number of constant values in general constraints that should be added.
contype - Integer array of length ncons containing the types of the general constraints:
- XPRS_GENCONS_MAX (0): indicates a maximum constraint;
- XPRS_GENCONS_MIN (1): indicates a minimum constraint;
- XPRS_GENCONS_AND (2): indicates an and constraint.
- XPRS_GENCONS_OR (3): indicates an or constraint;
- XPRS_GENCONS_ABS (4): indicates an absolute value constraint.
resultant - Integer array of length ncons containing the indices of the output variables of the general constraints.

colstart - Integer array of length ncons containing the start index of each general constraint in the colind array.

colind - Integer array of length ncols containing the input variables in all general constraints.

valstart - Integer array of length ncons containing the start index of each general constraint in the val array (may be nullif nvals = 0).

val - Double array of length nvals containing the constant values in all general constraints (may be nullif nvals = 0).

Throws:

XPRSprobException

getGenCons
```
public void getGenCons(XPRSenumerations.GenConsType[] contype,
                       int[] resultant,
                       int[] colstart,
                       int[] colind,
                       int maxcols,
                       IntHolder p_ncols,
                       int[] valstart,
                       double[] val,
                       int maxvals,
                       IntHolder p_nvals,
                       int first,
                       int last)
                throws XPRSprobException
```
Returns the general constraints y = f(x1, ..., xn, c1, ..., cm) in a given range.
Parameters:
contype - An integer array of length last-first+1 which will be filled with the types of the general constraints:
- XPRS_GENCONS_MAX (0): indicates a maximum constraint;
- XPRS_GENCONS_MIN (1): indicates a minimum constraint;
- XPRS_GENCONS_AND (2): indicates an and constraint.
- XPRS_GENCONS_OR (3): indicates an or constraint;
- XPRS_GENCONS_ABS (4): indicates an absolute value constraint.
May be null if not required.
resultant - Integer array which will be filled with the indices of the output variables y. It must be of length last-first+1. May be null if not required.

colstart - Integer array of length last-first+2 which will be filled with the start index of each general constraint in the colind array. May be null if not required.

colind - Integer array which will be filled with the indices of the input variables xi. May be null if not required.

maxcols - Maximum number of input columns to be retrieved.

p_ncols - Pointer to return the number of input columns in the colind array. If the number of input columns is greater than maxcols, then only maxcols elements will be returned. May be null if not required.

valstart - Integer array of length last-first+2 which will be filled with the start index of each general constraint in the val array. May be null if not required.

val - Integer array which will be filled with the constant values ci. May be null if not required.

maxvals - Maximum number of constant values to be retrieved.

p_nvals - Pointer to return the number of constant values in the val array. If the number of constant values is greater than maxvals, then only maxvals elements will be returned.May be null if not required.

first - First general constraint in the range.

last - Last general constraint in the range.

Throws:

XPRSprobException

getGenCons
```
public void getGenCons(XPRSenumerations.GenConsType[] contype,
                       int[] resultant,
                       long[] colstart,
                       int[] colind,
                       long maxcols,
                       LongHolder p_ncols,
                       long[] valstart,
                       double[] val,
                       long maxvals,
                       LongHolder p_nvals,
                       int first,
                       int last)
                throws XPRSprobException
```
Returns the general constraints y = f(x1, ..., xn, c1, ..., cm) in a given range.
Parameters:
contype - An integer array of length last-first+1 which will be filled with the types of the general constraints:
- XPRS_GENCONS_MAX (0): indicates a maximum constraint;
- XPRS_GENCONS_MIN (1): indicates a minimum constraint;
- XPRS_GENCONS_AND (2): indicates an and constraint.
- XPRS_GENCONS_OR (3): indicates an or constraint;
- XPRS_GENCONS_ABS (4): indicates an absolute value constraint.
May be null if not required.
resultant - Integer array which will be filled with the indices of the output variables y. It must be of length last-first+1. May be null if not required.

colstart - Integer array of length last-first+2 which will be filled with the start index of each general constraint in the colind array. May be null if not required.

colind - Integer array which will be filled with the indices of the input variables xi. May be null if not required.

maxcols - Maximum number of input columns to be retrieved.

p_ncols - Pointer to return the number of input columns in the colind array. If the number of input columns is greater than maxcols, then only maxcols elements will be returned. May be null if not required.

valstart - Integer array of length last-first+2 which will be filled with the start index of each general constraint in the val array. May be null if not required.

val - Integer array which will be filled with the constant values ci. May be null if not required.

maxvals - Maximum number of constant values to be retrieved.

p_nvals - Pointer to return the number of constant values in the val array. If the number of constant values is greater than maxvals, then only maxvals elements will be returned.May be null if not required.

first - First general constraint in the range.

last - Last general constraint in the range.

Throws:

XPRSprobException

delPwlCons
```
public void delPwlCons(int npwls,
                       int[] pwlind)
                throws XPRSprobException
```
Delete piecewise linear constraints from a problem.

Parameters:

npwls - Number of piecewise linear constraints to delete.

pwlind - An integer array of length npwls containing the piecewise linear constraints to delete.

Throws:

XPRSprobException

delGenCons
```
public void delGenCons(int ncons,
                       int[] conind)
                throws XPRSprobException
```
Delete general constraints from a problem.

Parameters:

ncons - Number of general constraints to delete.

conind - An integer array of length ncons containing the general constraints to delete.

Throws:

XPRSprobException

dumpControls
```
public void dumpControls()
                  throws XPRSprobException
```
Displays the list of controls and their current value for those controls that have been set to a non default value.

Throws:

XPRSprobException

getIndicators
```
public void getIndicators(int[] colind,
                          int[] complement,
                          int first,
                          int last)
                   throws XPRSprobException
```
Returns the indicator constraint condition (indicator variable and complement flag) associated to the rows in a given range.
Parameters:

colind - Integer array of length last-first+1 where the column indices of the indicator variables are to be placed. May be null.
complement - Integer array of length last-first+1 where the indicator complement flags will be returned:
- 0: not an indicator constraint (in this case the corresponding entry in the colind array is ignored);
- 1: for indicator constraints with condition "bin = 1";
- -1: for indicator constraints with condition "bin = 0".
May be null.
first - First row in the range.

last - Last row in the range (inclusive).

Throws:

XPRSprobException

delIndicators
```
public void delIndicators(int first,
                          int last)
                   throws XPRSprobException
```
Delete indicator constraints. This turns the specified rows into normal rows (not controlled by indicator variables).

Parameters:

first - First row in the range.

last - Last row in the range (inclusive).

Throws:

XPRSprobException

minim

@Deprecated
public void minim(java.lang.String flags)
           throws XPRSprobException

Deprecated.

since 38.00, use optimize() instead

Throws:: XPRSprobException

minim
```
@Deprecated
public void minim()
           throws XPRSprobException
```
Deprecated.
since 38.00, use optimize() instead.

Convenience wrapper for minim(String).

Throws:

XPRSprobException

See Also:

minim(String)

maxim

@Deprecated
public void maxim(java.lang.String flags)
           throws XPRSprobException

Deprecated.

since 38.00, use optimize() instead

Throws:: XPRSprobException

maxim
```
@Deprecated
public void maxim()
           throws XPRSprobException
```
Deprecated.
since 38.00, use optimize() instead.

Convenience wrapper for maxim(String).

Throws:

XPRSprobException

See Also:

maxim(String)

lpOptimize
```
public void lpOptimize(java.lang.String flags)
                throws XPRSprobException
```
This function begins a search for the optimal continuous (LP) solution. The direction of optimization is given by OBJSENSE. The status of the problem when the function completes can be checked using LPSTATUS. Any MIP entities in the problem will be ignored.
Examples using lpOptimize:
Parameters:
flags - Flags to pass to lpOptimize ( LPOPTIMIZE). The default is "" or null, in which case the algorithm used is determined by the DEFAULTALG control. If the argument includes:
- b: the problem will be solved using the Newton barrier method, or the Hybrid gradient method if BARALG is set to 4;
- p: the problem will be solved using the primal simplex algorithm;
- d: the problem will be solved using the dual simplex algorithm;
- n: the network part of the problem will be identified and solved using the network simplex algorithm;
Throws:

XPRSprobException

lpOptimize
```
public void lpOptimize()
                throws XPRSprobException
```
Convenience wrapper for lpOptimize(String).

Throws:

XPRSprobException

See Also:

lpOptimize(String)

mipOptimize
```
public void mipOptimize(java.lang.String flags)
                 throws XPRSprobException
```
This function begins a tree search for the optimal MIP solution. The direction of optimization is given by OBJSENSE. The status of the problem when the function completes can be checked using MIPSTATUS.
Examples using mipOptimize:
- FolioHeuristic.java
Parameters:
flags - Flags to pass to mipOptimize ( MIPOPTIMIZE), which specifies how to solve the initial continuous problem where the MIP entities are relaxed. If the argument includes:
- b: the initial continuous relaxation will be solved using the Newton barrier method (or the hybrid gradient method if BARALG is set to 4);
- p: the initial continuous relaxation will be solved using the primal simplex algorithm;
- d: the initial continuous relaxation will be solved using the dual simplex algorithm;
- n: the network part of the initial continuous relaxation will be identified and solved using the network simplex algorithm;
- l: stop after having solved the initial continous relaxation.
Throws:

XPRSprobException

mipOptimize
```
public void mipOptimize()
                 throws XPRSprobException
```
Convenience wrapper for mipOptimize(String).

Throws:

XPRSprobException

See Also:

mipOptimize(String)

optimize
```
public void optimize(java.lang.String flags,
                     IntHolder solvestatus,
                     IntHolder solstatus)
              throws XPRSprobException
```
This function begins a search for the optimal solution of the problem. The direction of optimization is given by OBJSENSE.
Examples using optimize:
Parameters:
flags - Flags to pass to optimize ( OPTIMIZE). The default is "" or null. If the argument includes:
- s: solve the problem to local optimality;
- x: solve the problem to global optimality;
- l: if a branch and bound search is necessary to solve the problem, stop after solving the root node.
solvestatus - The solve status after termination. Takes the same values as SOLVESTATUS

solstatus - The solution status after termination. Takes the same values as SOLSTATUS

Throws:

XPRSprobException

readSlxSol
```
public void readSlxSol(java.lang.String filename,
                       java.lang.String flags)
                throws XPRSprobException
```
Reads an ASCII solution file [ .slx] created by the writeSlxSol function.
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name to which the solution is to be read. If omitted, the default problem_name is used with a .slx extension.
flags - Flags to pass to readSlxSol ( READSLXSOL):
- l: read the solution as an LP solution in case of a MIP problem;
- m: read the solution as a solution for the MIP problem;
- a: read multiple MIP solutions from the .slx file and add them to the MIP problem;
- v: use the provided filename verbatim, without appending the .slx extension;
- z: read a compressed input file.
Throws:

XPRSprobException

readSlxSol
```
public void readSlxSol(java.lang.String filename)
                throws XPRSprobException
```
Convenience wrapper for readSlxSol(String, String).

Throws:

XPRSprobException

See Also:

readSlxSol(String, String)

readSlxSol
```
public void readSlxSol()
                throws XPRSprobException
```
Convenience wrapper for readSlxSol(String, String).

Throws:

XPRSprobException

See Also:

readSlxSol(String, String)

alter
```
@Deprecated
public void alter(java.lang.String filename)
           throws XPRSprobException
```
Deprecated.
since 45.00, use functions to directly manipulate matrix data.

Alters or changes matrix elements, right hand sides and constraint senses in the current problem.

Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters specifying the file to be read. If omitted, the default problem_name is used with a .alt extension.

Throws:

XPRSprobException

readBasis
```
public void readBasis(java.lang.String filename,
                      java.lang.String flags)
               throws XPRSprobException
```
Instructs the Optimizer to read in a previously saved basis from a file.
Examples using readBasis:
- AddMipSol.java
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name from which the basis is to be read. If omitted, the default problem_name is used with a .bss extension.
flags - Flags to pass to readBasis ( READBASIS):
- n: input basis file containing basic solution values;
- t: input a compact advanced form of the basis;
- v: use the provided filename verbatim, without appending the .bss extension;
- z: read a compressed input file.
Throws:

XPRSprobException

readBasis
```
public void readBasis(java.lang.String filename)
               throws XPRSprobException
```
Convenience wrapper for readBasis(String, String).

Throws:

XPRSprobException

See Also:

readBasis(String, String)

readBasis
```
public void readBasis()
               throws XPRSprobException
```
Convenience wrapper for readBasis(String, String).

Throws:

XPRSprobException

See Also:

readBasis(String, String)

readBinSol
```
public void readBinSol(java.lang.String filename,
                       java.lang.String flags)
                throws XPRSprobException
```
Reads a solution from a binary solution file.
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name from which the solution is to be read. If omitted, the default problem_name is used with a .sol extension.
flags - Flags to pass to readBinSol ( READBINSOL):
- m: load the solution as a solution for the MIP;
- x: load the solution as a solution for the LP;
- v: use the provided filename verbatim, without appending the .sol extension;
- z: read a compressed input file.
Throws:

XPRSprobException

readBinSol
```
public void readBinSol(java.lang.String filename)
                throws XPRSprobException
```
Convenience wrapper for readBinSol(String, String).

Throws:

XPRSprobException

See Also:

readBinSol(String, String)

readBinSol
```
public void readBinSol()
                throws XPRSprobException
```
Convenience wrapper for readBinSol(String, String).

Throws:

XPRSprobException

See Also:

readBinSol(String, String)

getInfeas
```
public void getInfeas(IntHolder p_nprimalcols,
                      IntHolder p_nprimalrows,
                      IntHolder p_ndualrows,
                      IntHolder p_ndualcols,
                      int[] x,
                      int[] slack,
                      int[] duals,
                      int[] djs)
               throws XPRSprobException
```
Returns a list of infeasible primal and dual variables.

Parameters:

p_nprimalcols - Pointer to an integer where the number of primal infeasible variables is returned.

p_nprimalrows - Pointer to an integer where the number of primal infeasible rows is returned.

p_ndualrows - Pointer to an integer where the number of dual infeasible rows is returned.

p_ndualcols - Pointer to an integer where the number of dual infeasible variables is returned.

x - Integer array of length p_nprimalcols where the indices of the primal infeasible variables will be returned. May be null if not required.

slack - Integer array of length p_nprimalrows where the indices of the primal infeasible rows will be returned. May be null if not required.

duals - Integer array of length p_ndualrows where the indices of the dual infeasible rows will be returned. May be null if not required.

djs - Integer array of length p_ndualcols where the indices of the dual infeasible variables will be returned. May be null if not required.

Throws:

XPRSprobException

getScaledInfeas
```
public void getScaledInfeas(IntHolder p_nprimalcols,
                            IntHolder p_nprimalrows,
                            IntHolder p_ndualrows,
                            IntHolder p_ndualcols,
                            int[] x,
                            int[] slack,
                            int[] duals,
                            int[] djs)
                     throws XPRSprobException
```
Returns a list primal and dual variables that are infeasible for the scaled original problem. If the problem is currently presolved, it is postsolved before the function returns.

Parameters:

p_nprimalcols - Number of primal infeasible variables.

p_nprimalrows - Number of primal infeasible rows.

p_ndualrows - Number of dual infeasible rows.

p_ndualcols - Number of dual infeasible variables.

x - Integer array of length p_nprimalcols where the indices of the primal infeasible variables will be returned. May be null if not required.

slack - Integer array of length p_nprimalrows where the indices of the primal infeasible rows will be returned. May be null if not required.

duals - Integer array of length p_ndualrows where the indices of the dual infeasible rows will be returned. May be null if not required.

djs - Integer array of length p_ndualcols where the indices of the dual infeasible variables will be returned. May be null if not required.

Throws:

XPRSprobException

getUnbVec
```
public void getUnbVec(IntHolder p_seq)
               throws XPRSprobException
```
Returns the index vector which causes the primal simplex or dual simplex algorithm to determine that a matrix is primal or dual unbounded respectively.

Parameters:

p_seq - Pointer to an integer where the vector causing the problem to be detected as being primal or dual unbounded will be returned. In the dual simplex case, the vector is the leaving row for which the dual simplex detected dual unboundedness. In the primal simplex case, the vector is the entering row p_seq (if p_seq is in the range 0 to ROWS -1) or column (variable) p_seq-ROWS- SPAREROWS (if p_seq is between ROWS+SPAREROWS and ROWS+SPAREROWS+ COLS -1) for which the primal simplex detected primal unboundedness.

Throws:

XPRSprobException

getUnbVec
```
public int getUnbVec()
```
Convenience wrapper for getUnbVec(com.dashoptimization.IntHolder) that returns the output argument.

Returns:

The value that the wrapped function would return in p_seq.

crossoverLpSol
```
public void crossoverLpSol(IntHolder p_status)
                    throws XPRSprobException
```
Provides a basic optimal solution for a given solution of an LP problem. This function behaves like the crossover after the barrier algorithm.
Parameters:
p_status - Pointer to an int where the status will be returned. The status is one of:
- 0: The crossover is successful.
- 1: The crossover is not performed because the problem has no solution.
Throws:

XPRSprobException

crossoverLpSol
```
public int crossoverLpSol()
```
Convenience wrapper for crossoverLpSol(com.dashoptimization.IntHolder) that returns the output argument.

Returns:

The value that the wrapped function would return in p_status.

tune
```
public void tune(java.lang.String flags)
          throws XPRSprobException
```
This function begins a tuner session for the current problem. The tuner will solve the problem multiple times while evaluating a list of control settings and promising combinations of them. When finished, the tuner will select and set the best control setting on the problem. Note that the direction of optimization is given by OBJSENSE.
Parameters:
flags - Flags to pass to tune, which specify whether to tune the current problem as an LP or a MIP problem, and the algorithm for solving the LP problem or the initial LP relaxation of the MIP. The flags are optional. If the argument includes:
- l: will tune the problem as an LP (mutually exclusive with flag g);
- g: will tune the problem as a MIP (mutually exclusive with flag l);
- x: will tune the problem as a Global Optimization problem with Xpress Global;
- d: will use the dual simplex method;
- p: will use the primal simplex method;
- b: will use the barrier method;
- n: will use the network simplex method.
Throws:

XPRSprobException

tuneProbSetFile
```
public void tuneProbSetFile(java.lang.String setfile,
                            int ifmip,
                            int sense)
                     throws XPRSprobException
```
This function begins a tuner session for a set of problems. The tuner will solve the problems multiple times while evaluating a list of control settings and promising combinations of them. When finished, the tuner will select and set the best control setting on the problems.
Parameters:

setfile - A plain text file which contains a list of problem filenames.
ifmip -
- -1: to automatically determine whether to solve the problem set as LP or MIP;
- 0: to force the tuner to tune the problem set as LP;
- 1: to force the tuner to tune the problem set as MIP.
sense -
- 0: to automatically determine the sense of each problem;
- 1: to force the tuner to minimize each problem;
- -1: to force the tuner to maximize each problem.
Throws:

XPRSprobException

tunerWriteMethod
```
public void tunerWriteMethod(java.lang.String methodfile)
                      throws XPRSprobException
```
This function writes the current tuner method to a given file or prints it to the console.

Parameters:

methodfile - The method file name, to which the tuner will write the current tuner method. If the input is "stdout" or "STDOUT", then the tuner will print the method to the console instead.

Throws:

XPRSprobException

tunerReadMethod
```
public void tunerReadMethod(java.lang.String methodfile)
                     throws XPRSprobException
```
This function loads a user defined tuner method from the given file.

Parameters:

methodfile - The method file name, from which the tuner can load a user-defined tuner method.

Throws:

XPRSprobException

getBarNumStability

@Deprecated
public void getBarNumStability(int[] colstab,
                               int[] rowstab)
                        throws XPRSprobException

Deprecated.

since 45.00.

Throws:: XPRSprobException

getLastBarSol
```
public void getLastBarSol(double[] x,
                          double[] slack,
                          double[] duals,
                          double[] djs,
                          IntHolder p_status)
                   throws XPRSprobException
```
Used to obtain the last barrier solution values following optimization that used the barrier solver.

Parameters:

x - Double array of length ORIGINALCOLS where the values of the primal variables will be returned. May be null if not required.

slack - Double array of length ORIGINALROWS where the values of the slack variables will be returned. May be null if not required.

duals - Double array of length ORIGINALROWS where the values of the dual variables ( c_B^TB^-1) will be returned. May be null if not required.

djs - Double array of length ORIGINALCOLS where the reduced cost for each variable ( c^T-c_B^TB^-1A) will be returned. May be null if not required.

p_status - Status of the last barrier solve. Value matches that of LPSTATUS should the solve have been stopped immediately after the barrier.

Throws:

XPRSprobException

clearIIS
```
public void clearIIS()
              throws XPRSprobException
```
Resets the search for Irreducible Infeasible Sets (IIS).

Throws:

XPRSprobException

firstIIS
```
public void firstIIS(int mode,
                     IntHolder p_status)
              throws XPRSprobException
```
Initiates a search for an Irreducible Infeasible Set (IIS) in an infeasible problem.
Examples using firstIIS:
Parameters:
mode - The IIS search mode:
- 0: stops after finding the initial infeasible subproblem;
- 1: find an IIS, emphasizing simplicity of the IIS;
- 2: find an IIS, emphasizing a quick result.
p_status - The status after the search:
- 0: success;
- 1: feasible problem;
- 2: error;
- 3: timeout or interruption.
Throws:

XPRSprobException

firstIIS
```
public int firstIIS(int mode)
```
Convenience wrapper for firstIIS(int,com.dashoptimization.IntHolder) that returns the output argument.
Examples using firstIIS:
Parameters:
mode - The IIS search mode:
- 0: stops after finding the initial infeasible subproblem;
- 1: find an IIS, emphasizing simplicity of the IIS;
- 2: find an IIS, emphasizing a quick result.
Returns:

The value that the wrapped function would return in p_status.

nextIIS
```
public void nextIIS(IntHolder p_status)
             throws XPRSprobException
```
Continues the search for further Irreducible Infeasible Sets (IIS), or calls firstIIS ( IIS) if no IIS has been identified yet.
Examples using nextIIS:
- FolioIIS.java
- IISExample.java
Parameters:
p_status - The status after the search:
- 0: success;
- 1: no more IIS could be found, or problem is feasible if no firstIIS call preceded;
- 2: on error (when the function returns nonzero).
Throws:

XPRSprobException

nextIIS
```
public int nextIIS()
```
Convenience wrapper for nextIIS(com.dashoptimization.IntHolder) that returns the output argument.
Examples using nextIIS:
- FolioIIS.java
- IISExample.java
Returns:

The value that the wrapped function would return in p_status.

printIIS
```
public void printIIS(int iis)
              throws XPRSprobException
```
Prints a given Irreducible Infeasible Set (IIS) in the log. If 0 is passed as the IIS number parameter, the initial infeasible subproblem is printed.

Parameters:

iis - The ordinal number of the IIS to be printed.

Throws:

XPRSprobException

IISStatus
```
public void IISStatus(IntHolder p_niis,
                      int[] nrows,
                      int[] ncols,
                      double[] suminfeas,
                      int[] numinfeas)
               throws XPRSprobException
```
Returns statistics on the Irreducible Infeasible Sets (IIS) found so far by firstIIS ( IIS), nextIIS ( IIS -n) or iISAll ( IIS -a).
Examples using IISStatus:
Parameters:

p_niis - The number of IISs found so far.

nrows - Array containing the number of rows in each IIS. May be null if not required.

ncols - Array containing the number of bounds in each IIS. May be null if not required.

suminfeas - Array containing the sum of infeasibilities in each IIS after the first phase simplex. May be null if not required.

numinfeas - Array containing the number of infeasible variables in each IIS after the first phase simplex. May be null if not required.

Throws:

XPRSprobException

IISAll
```
public void IISAll()
            throws XPRSprobException
```
Performs an automated search for independent Irreducible Infeasible Sets (IIS) in an infeasible problem.
Examples using IISAll:
- IISExample.java
Throws:

XPRSprobException

writeIIS
```
public void writeIIS(int iis,
                     java.lang.String filename,
                     int filetype,
                     java.lang.String flags)
              throws XPRSprobException
```
Writes an LP/MPS/CSV file containing a given Irreducible Infeasible Set (IIS). If 0 is passed as the IIS number parameter, the initial infeasible subproblem is written.
Examples using writeIIS:
- IISExample.java
Parameters:

iis - The ordinal number of the IIS to be written.

filename - The name of the file to be created. If omitted (or null), the default problem_name.
filetype - Type of file to be created:
- 0: creates an lp/mps file containing the IIS as a linear programming problem;
- 1: creates a comma separated (csv) file containing the description and supplementary information on the given IIS.
flags - Flags passed to the writeProb function.

Throws:

XPRSprobException

writeIIS

public void writeIIS(int iis,
                     java.lang.String filename,
                     int filetype)
              throws XPRSprobException

Convenience wrapper for writeIIS(int, String, int, String).

Throws:: XPRSprobException
See Also:: writeIIS(int, String, int, String)

IISIsolations
```
public void IISIsolations(int iis)
                   throws XPRSprobException
```
Performs the isolation identification procedure for an Irreducible Infeasible Set (IIS). This function applies only to linear problems.

Parameters:

iis - The number of the IIS identified by either firstIIS ( IIS), nextIIS ( IIS -n) or iISAll ( IIS -a) in which the isolations should be identified.

Throws:

XPRSprobException

getIISData
```
public void getIISData(int iis,
                       IntHolder p_nrows,
                       IntHolder p_ncols,
                       int[] rowind,
                       int[] colind,
                       byte[] contype,
                       byte[] bndtype,
                       double[] duals,
                       double[] djs,
                       byte[] isolationrows,
                       byte[] isolationcols)
                throws XPRSprobException
```
Returns information for an Irreducible Infeasible Set: size, variables and constraints (row and column vectors), and conflicting sides of the variables. For pure linear problems there is also information on duals, reduced costs and isolations.
Examples using getIISData:
- IISExample.java
Parameters:

iis - The ordinal number of the IIS to get data for.

p_nrows - Pointer to an integer where the number of rows in the IIS will be returned.

p_ncols - Pointer to an integer where the number of bounds in the IIS will be returned.

rowind - Indices of rows/sets/piecewise linear constraints/general constraints in the IIS. Can be null if not required.

colind - Indices of bounds (columns) in the IIS. Can be null if not required.
contype - Sense of rows in the IIS:
- L: for less or equal row;
- G: for greater or equal row.
- E: for an equality row (for a non LP IIS);
- 1: for a SOS1 row;
- 2: for a SOS2 row;
- W: for a piecewise linear constraint;
- X: for a general constraint;
- I: for an indicator row.
Can be null if not required.
bndtype - Sense of bound in the IIS:
- U: for upper bound;
- L: for lower bound.
- F: for fixed columns (for a non LP IIS);
- B: for a binary column;
- I: for an integer column;
- P: for a partial integer columns;
- S: for a semi-continuous column;
- R: for a semi-continuous integer column.
Can be null if not required.
duals - The dual multipliers associated with the rows. Can be null if not required.

djs - The dual multipliers (reduced costs) associated with the bounds. Can be null if not required.
isolationrows - The isolation status of the rows:
- -1: if isolation information is not available for row (run iis isolations);
- 0: if row is not in isolation;
- 1: if row is in isolation.
Can be null if not required.
isolationcols - The isolation status of the bounds:
- -1: if isolation information is not available for column (run iis isolations);
- 0: if column is not in isolation;
- 1: if column is in isolation.
Can be null if not required.
Throws:

XPRSprobException

loadPresolveBasis
```
public void loadPresolveBasis(int[] rowstat,
                              int[] colstat)
                       throws XPRSprobException
```
Loads a presolved basis from the user's areas.
Parameters:
rowstat - Integer array of length ROWS containing the basis status of the slack, surplus or artificial variable associated with each row. The status must be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): slack, surplus or artificial is non-basic at lower bound;
- XPRS_BASISSTATUS_BASIC (1): slack, surplus or artificial is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): slack or surplus is non-basic at upper bound.
colstat - Integer array of length COLS containing the basis status of each of the columns in the matrix. The status must be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): variable is non-basic at lower bound or superbasic at zero if the variable has no lower bound;
- XPRS_BASISSTATUS_BASIC (1): variable is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): variable is at upper bound;
- XPRS_BASISSTATUS_SUPERBASIC (3): variable is super-basic.
Throws:

XPRSprobException

loadSecureVecs
```
public void loadSecureVecs(int nrows,
                           int ncols,
                           int[] rowind,
                           int[] colind)
                    throws XPRSprobException
```
Allows the user to mark rows and columns in order to prevent the presolve removing these rows and columns from the matrix.

Parameters:

nrows - Number of rows to be marked.

ncols - Number of columns to be marked.

rowind - Integer array of length nrows containing the rows to be marked. May be null if not required.

colind - Integer array of length ncols containing the columns to be marked. May be null if not required.

Throws:

XPRSprobException

addRows
```
public void addRows(int nrows,
                    int ncoefs,
                    byte[] rowtype,
                    double[] rhs,
                    double[] rng,
                    int[] start,
                    int[] colind,
                    double[] rowcoef)
             throws XPRSprobException
```
Adds rows to the optimizer matrix.
Examples using addRows:
- LoadLP.java
- Trimloss.java
Parameters:

nrows - Number of new rows.

ncoefs - Number of new nonzeros in the added rows.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= row;
- G: indicates >= row;
- E: indicates an = row.
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
rhs - Double array of length nrows containing the right hand side elements.

rng - Double array of length nrows containing the row range elements. This may be null if there are no ranged constraints. The values in the rng array will only be read for R type rows. The entries for other type rows will be ignored. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

start - Integer array of length nrows containing the offsets in the colind and rowcoef arrays of the start of the elements for each row. May be null if none of the rows contain nonzero coefficients.

colind - Integer array of length ncoefs containing the (contiguous) column indices for the elements in each row. May be null if none of the rows contain nonzero coefficients.

rowcoef - Double array of length ncoefs containing the (contiguous) element values. May be null if none of the rows contain nonzero coefficients.

Throws:

XPRSprobException

addRows

public void addRows(int nrows,
                    int ncoefs,
                    byte[] rowtype,
                    double[] rhs,
                    int[] start,
                    int[] colind,
                    double[] rowcoef)
             throws XPRSprobException

Convenience wrapper for addRows(int, int, byte[], double[], double[], int[], int[], double[]).

Throws:: XPRSprobException
See Also:: addRows(int, int, byte[], double[], double[], int[], int[], double[])

addRows
```
public void addRows(int nrows,
                    long ncoefs,
                    byte[] rowtype,
                    double[] rhs,
                    double[] rng,
                    long[] start,
                    int[] colind,
                    double[] rowcoef)
             throws XPRSprobException
```
Adds rows to the optimizer matrix.
Examples using addRows:
- LoadLP.java
- Trimloss.java
Parameters:

nrows - Number of new rows.

ncoefs - Number of new nonzeros in the added rows.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= row;
- G: indicates >= row;
- E: indicates an = row.
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
rhs - Double array of length nrows containing the right hand side elements.

rng - Double array of length nrows containing the row range elements. This may be null if there are no ranged constraints. The values in the rng array will only be read for R type rows. The entries for other type rows will be ignored. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

start - Integer array of length nrows containing the offsets in the colind and rowcoef arrays of the start of the elements for each row. May be null if none of the rows contain nonzero coefficients.

colind - Integer array of length ncoefs containing the (contiguous) column indices for the elements in each row. May be null if none of the rows contain nonzero coefficients.

rowcoef - Double array of length ncoefs containing the (contiguous) element values. May be null if none of the rows contain nonzero coefficients.

Throws:

XPRSprobException

addRows

public void addRows(int nrows,
                    long ncoefs,
                    byte[] rowtype,
                    double[] rhs,
                    long[] start,
                    int[] colind,
                    double[] rowcoef)
             throws XPRSprobException

Convenience wrapper for addRows(int, long, byte[], double[], double[], long[], int[], double[]).

Throws:: XPRSprobException
See Also:: addRows(int, long, byte[], double[], double[], long[], int[], double[])

delRows
```
public void delRows(int nrows,
                    int[] rowind)
             throws XPRSprobException
```
Delete rows from a matrix.

Parameters:

nrows - Number of rows to delete.

rowind - An integer array of length nrows containing the rows to delete.

Throws:

XPRSprobException

addCols
```
public void addCols(int ncols,
                    int ncoefs,
                    double[] objcoef,
                    int[] start,
                    int[] rowind,
                    double[] rowcoef,
                    double[] lb,
                    double[] ub)
             throws XPRSprobException
```
Adds columns to the optimizer matrix.
Examples using addCols:
- Trimloss.java
Parameters:

ncols - Number of new columns.

ncoefs - Number of new nonzeros in the added columns.

objcoef - Double array of length ncols containing the objective function coefficients of the new columns. As of version 43.00 this can be null to indicate that all newly created variables have an objective coefficient of 0 (zero).

start - Integer array of length ncols containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. May be null if none of the columns contain nonzero coefficients.

rowind - Integer array of length ncoefs containing the row indices for the elements in each column. May be null if none of the columns contain nonzero coefficients.

rowcoef - Double array of length ncoefs containing the element values. May be null if none of the columns contain nonzero coefficients.

lb - Double array of length ncols containing the lower bounds on the added columns. This can be null in which case all variables will have a lower bound of 0.

ub - Double array of length ncols containing the upper bounds on the added columns. This can be null in which case all variables will have an infinite upper bound.

Throws:

XPRSprobException

addCols
```
public void addCols(int ncols,
                    long ncoefs,
                    double[] objcoef,
                    long[] start,
                    int[] rowind,
                    double[] rowcoef,
                    double[] lb,
                    double[] ub)
             throws XPRSprobException
```
Adds columns to the optimizer matrix.
Examples using addCols:
- Trimloss.java
Parameters:

ncols - Number of new columns.

ncoefs - Number of new nonzeros in the added columns.

objcoef - Double array of length ncols containing the objective function coefficients of the new columns. As of version 43.00 this can be null to indicate that all newly created variables have an objective coefficient of 0 (zero).

start - Integer array of length ncols containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. May be null if none of the columns contain nonzero coefficients.

rowind - Integer array of length ncoefs containing the row indices for the elements in each column. May be null if none of the columns contain nonzero coefficients.

rowcoef - Double array of length ncoefs containing the element values. May be null if none of the columns contain nonzero coefficients.

lb - Double array of length ncols containing the lower bounds on the added columns. This can be null in which case all variables will have a lower bound of 0.

ub - Double array of length ncols containing the upper bounds on the added columns. This can be null in which case all variables will have an infinite upper bound.

Throws:

XPRSprobException

delCols
```
public void delCols(int ncols,
                    int[] colind)
             throws XPRSprobException
```
Delete columns from a matrix.

Parameters:

ncols - Number of columns to delete.

colind - Integer array of length ncols containing the columns to delete.

Throws:

XPRSprobException

chgColType
```
public void chgColType(int ncols,
                       int[] colind,
                       byte[] coltype)
                throws XPRSprobException
```
Used to change the type of a specified set of columns in the matrix.
Examples using chgColType:
- Trimloss.java
Parameters:

ncols - Number of columns to change.

colind - Integer array of length ncols containing the indices of the columns.
coltype - Character array of length ncols giving the new column types:
- C: indicates a continuous column;
- B: indicates a binary column;
- I: indicates an integer column.
- S: indicates a semi—continuous column. The semi—continuous lower bound will be set to 1.0.
- R: indicates a semi—integer column. The semi—integer lower bound will be set to 1.0.
- P: indicates a partial integer column. The partial integer limit will be set to 1.0.
Throws:

XPRSprobException

chgColType
```
public void chgColType(int x,
                       byte value)
                throws XPRSprobException
```
Convenience wrapper for chgColType(int, int[], byte[]). This function only modifies a single element.
Examples using chgColType:
- Trimloss.java
Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

chgColType(int, int[], byte[])

loadBasis
```
public void loadBasis(int[] rowstat,
                      int[] colstat)
               throws XPRSprobException
```
Loads a basis from the user's areas.
Examples using loadBasis:
Parameters:
rowstat - Integer array of length ROWS containing the basis status of the slack, surplus or artificial variable associated with each row. The status must be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): slack, surplus or artificial is non-basic at lower bound;
- XPRS_BASISSTATUS_BASIC (1): slack, surplus or artificial is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): slack or surplus is non-basic at upper bound.
- XPRS_BASISSTATUS_SUPERBASIC (3): slack or surplus is super-basic.
colstat - Integer array of length COLS containing the basis status of each of the columns in the constraint matrix. The status must be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): variable is non-basic at lower bound or superbasic at zero if the variable has no lower bound;
- XPRS_BASISSTATUS_BASIC (1): variable is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): variable is at upper bound;
- XPRS_BASISSTATUS_SUPERBASIC (3): variable is super-basic.
Throws:

XPRSprobException

postSolve
```
public void postSolve()
               throws XPRSprobException
```
Postsolve the current matrix when it is in a presolved state.
Examples using postSolve:
- AddMipSol.java
Throws:

XPRSprobException

delSets
```
public void delSets(int nsets,
                    int[] setind)
             throws XPRSprobException
```
Delete sets from a problem.

Parameters:

nsets - Number of sets to delete.

setind - An integer array of length nsets containing the sets to delete.

Throws:

XPRSprobException

addSets
```
public void addSets(int nsets,
                    int nelems,
                    byte[] settype,
                    int[] start,
                    int[] colind,
                    double[] refval)
             throws XPRSprobException
```
Allows sets to be added to the problem after passing it to the Optimizer using the input routines.
Parameters:

nsets - Number of new sets.

nelems - Number of new nonzeros in the added sets.
settype - Character array of length nsets containing the set types:
- 1: indicates a SOS1;
- 2: indicates a SOS2;
start - Integer array of length nsets containing the offsets in the colind and refval arrays of the start of the elements for each set.

colind - Integer array of length nelems containing the (contiguous) column indices for the elements in each set.

refval - Double array of length nelems containing the (contiguous) reference values. These define the order for SOS2 constraints and may be used in branching for both types.

Throws:

XPRSprobException

addSets
```
public void addSets(int nsets,
                    long nelems,
                    byte[] settype,
                    long[] start,
                    int[] colind,
                    double[] refval)
             throws XPRSprobException
```
Allows sets to be added to the problem after passing it to the Optimizer using the input routines.
Parameters:

nsets - Number of new sets.

nelems - Number of new nonzeros in the added sets.
settype - Character array of length nsets containing the set types:
- 1: indicates a SOS1;
- 2: indicates a SOS2;
start - Integer array of length nsets containing the offsets in the colind and refval arrays of the start of the elements for each set.

colind - Integer array of length nelems containing the (contiguous) column indices for the elements in each set.

refval - Double array of length nelems containing the (contiguous) reference values. These define the order for SOS2 constraints and may be used in branching for both types.

Throws:

XPRSprobException

strongBranch
```
public void strongBranch(int nbounds,
                         int[] colind,
                         byte[] bndtype,
                         double[] bndval,
                         int iterlim,
                         double[] objval,
                         int[] status)
                  throws XPRSprobException
```
Performs strong branching iterations on all specified bound changes. For each candidate bound change, strongBranch performs dual simplex iterations starting from the current optimal solution of the base LP, and returns both the status and objective value reached after these iterations.
Parameters:

nbounds - Number of bound changes to try.

colind - Integer array of size nbounds containing the indices of the columns on which the bounds will change.
bndtype - Character array of length nbounds indicating the type of bound to change:
- U: indicates change the upper bound;
- L: indicates change the lower bound;
- B: indicates change both bounds, i.e. fix the column.
bndval - Double array of length nbounds giving the new bound values.

iterlim - Maximum number of LP iterations to perform for each bound change.

objval - Objective value of each LP after performing the strong branching iterations.

status - Status of each LP after performing the strong branching iterations, as detailed for the LPSTATUS attribute.

Throws:

XPRSprobException

estimateRowDualRanges
```
public void estimateRowDualRanges(int nrows,
                                  int[] rowind,
                                  int iterlim,
                                  double[] mindual,
                                  double[] maxdual)
                           throws XPRSprobException
```
Performs a dual side range sensitivity analysis, i.e. calculates estimates for the possible ranges for dual values.

Parameters:

nrows - The number of rows to analyze.

rowind - Row indices to analyze.

iterlim - Effort limit expressed as simplex iterations per row.

mindual - Estimated lower bounds on the possible dual ranges.

maxdual - Estimated upper bounds on the possible dual ranges.

Throws:

XPRSprobException

setMessageStatus
```
public void setMessageStatus(int msgcode,
                             int status)
                      throws XPRSprobException
```
Manages suppression of messages.

Parameters:

msgcode - The id number of the message. Refer to for a list of possible message numbers.

status - Non-zero if the message is not suppressed; 0 otherwise.

Throws:

XPRSprobException

getMessageStatus
```
public void getMessageStatus(int msgcode,
                             IntHolder p_status)
                      throws XPRSprobException
```
Retrieves the current suppression status of a message.

Parameters:

msgcode - The id number of the message. Refer to Chapter for a list of possible message numbers.

p_status - Non-zero if the message is not suppressed; 0 otherwise.

Throws:

XPRSprobException

getMessageStatus
```
public int getMessageStatus(int msgcode)
```
Convenience wrapper for getMessageStatus(int,com.dashoptimization.IntHolder) that returns the output argument.

Parameters:

msgcode - The id number of the message. Refer to Chapter for a list of possible message numbers.

Returns:

The value that the wrapped function would return in p_status.

chgObjSense
```
public void chgObjSense(XPRSenumerations.ObjSense objsense)
                 throws XPRSprobException
```
Changes the problem's objective function sense to minimize or maximize.
Examples using chgObjSense:
Parameters:

objsense - XPRS_OBJ_MINIMIZE to change into a minimization, or XPRS_OBJ_MAXIMIZE to change into a maximization problem.

Throws:

XPRSprobException

chgGlbLimit
```
public void chgGlbLimit(int ncols,
                        int[] colind,
                        double[] limit)
                 throws XPRSprobException
```
Used to change semi-continuous or semi-integer lower bounds, or upper limits on partial integers.

Parameters:

ncols - Number of column limits to change.

colind - Integer array of size ncols containing the indices of the semi-continuous, semi-integer or partial integer columns that should have their limits changed.

limit - Double array of length ncols giving the new limit values.

Throws:

XPRSprobException

chgGlbLimit
```
public void chgGlbLimit(int x,
                        double value)
                 throws XPRSprobException
```
Convenience wrapper for chgGlbLimit(int, int[], double[]). This function only modifies a single element.

Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

chgGlbLimit(int, int[], double[])

save
```
public void save()
          throws XPRSprobException
```
Saves the current data structures, i.e. matrices, control settings and problem attribute settings to file and terminates the run so that optimization can be resumed later.

Throws:

XPRSprobException

saveAs
```
public void saveAs(java.lang.String filename)
            throws XPRSprobException
```
Saves the current data structures, i.e. matrices, control settings and problem attribute settings to file and terminates the run so that optimization can be resumed later.

Parameters:

filename - The name of the file (without .svf) to save to.

Throws:

XPRSprobException

restore
```
public void restore(java.lang.String probname,
                    java.lang.String flags)
             throws XPRSprobException
```
Restores the Optimizer's data structures from a file created by saveAs ( SAVE). Optimization may then recommence from the point at which the file was created.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing the problem name.
flags - Additional flags
- h: Do not restore hardware information from the file;
- v: use the provided filename verbatim, without appending the .svf extension.
Throws:

XPRSprobException

restore
```
public void restore()
             throws XPRSprobException
```
Convenience wrapper for restore(String, String).

Throws:

XPRSprobException

See Also:

restore(String, String)

restore
```
public void restore(java.lang.String probname)
             throws XPRSprobException
```
Convenience wrapper for restore(String, String).

Throws:

XPRSprobException

See Also:

restore(String, String)

pivot
```
public void pivot(int enter,
                  int leave)
           throws XPRSprobException
```
Performs a simplex pivot by bringing variable enter into the basis and removing leave.

Parameters:

enter - Index of row or column to enter basis.

leave - Index of row or column to leave basis.

Throws:

XPRSprobException

loadLPSol
```
public void loadLPSol(double[] x,
                      double[] slack,
                      double[] duals,
                      double[] djs,
                      IntHolder p_status)
               throws XPRSprobException
```
Loads an LP solution for the problem into the Optimizer.
Parameters:

x - Optional: Double array of length COLS (for the original problem and not the presolve problem) containing the values of the variables. May be null, see further information.

slack - Optional: double array of length ROWS containing the values of slack variables. May be null, see further information.

duals - Optional: double array of length ROWS containing the values of dual variables. May be null, see further information.

djs - Optional: double array of length COLS containing the values of reduced costs. May be null, see further information.
p_status - Pointer to an int where the status will be returned. The status is one of:
- 0: Solution is loaded.
- 1: Solution is not loaded because the problem is in presolved status.
Throws:

XPRSprobException

loadLPSol
```
public int loadLPSol(double[] x,
                     double[] slack,
                     double[] duals,
                     double[] djs)
```
Convenience wrapper for loadLPSol(double[],double[],double[],double[],com.dashoptimization.IntHolder) that returns the output argument.

Parameters:

x - Optional: Double array of length COLS (for the original problem and not the presolve problem) containing the values of the variables. May be null, see further information.

slack - Optional: double array of length ROWS containing the values of slack variables. May be null, see further information.

duals - Optional: double array of length ROWS containing the values of dual variables. May be null, see further information.

djs - Optional: double array of length COLS containing the values of reduced costs. May be null, see further information.

Returns:

The value that the wrapped function would return in p_status.

basisCondition
```
@Deprecated
public void basisCondition(DoubleHolder p_cond,
                           DoubleHolder p_scaledcond)
                    throws XPRSprobException
```
Deprecated.
since 38.00, use basisStability() instead.

Calculates the condition number of the current basis after solving the LP relaxation.

Parameters:

p_cond - The returned condition number of the current basis.

p_scaledcond - The returned condition number of the current basis for the scaled problem.

Throws:

XPRSprobException

repairWeightedInfeas
```
public void repairWeightedInfeas(IntHolder p_status,
                                 double[] lepref,
                                 double[] gepref,
                                 double[] lbpref,
                                 double[] ubpref,
                                 char phase2,
                                 double delta,
                                 java.lang.String flags)
                          throws XPRSprobException
```
By relaxing a set of selected constraints and bounds of an infeasible problem, it attempts to identify a 'solution' that violates the selected set of constraints and bounds minimally, while satisfying all other constraints and bounds. Among such solution candidates, it selects one that is optimal regarding the original objective function.
Examples using repairWeightedInfeas:
- Repair.java
Parameters:
p_status - The status after the relaxation:
- 0: relaxed optimum found;
- 1: relaxed problem is infeasible;
- 2: relaxed problem is unbounded;
- 3: solution of the relaxed problem regarding the original objective is nonoptimal;
- 4: error (when return code is nonzero);
- 5: numerical instability;
- 6: analysis of an infeasible relaxation was performed, but the relaxation is feasible.
lepref - Array of size ROWS containing the preferences for relaxing the less or equal side of row.

gepref - Array of size ROWS containing the preferences for relaxing the greater or equal side of a row.

lbpref - Array of size COLS containing the preferences for relaxing lower bounds.

ubpref - Array of size COLS containing preferences for relaxing upper bounds.
phase2 - Controls the second phase of optimization:
- o: use the objective sense of the original problem (default);
- x: maximize the relaxed problem using the original objective;
- f: skip optimization regarding the original objective;
- n: minimize the relaxed problem using the original objective;
- i: if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
- a: if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
delta - The relaxation multiplier in the second phase -1.

flags - Specifies flags to be passed to optimize.

Throws:

XPRSprobException

repairWeightedInfeas
```
public int repairWeightedInfeas(double[] lepref,
                                double[] gepref,
                                double[] lbpref,
                                double[] ubpref,
                                char phase2,
                                double delta,
                                java.lang.String flags)
```
Convenience wrapper for repairWeightedInfeas(com.dashoptimization.IntHolder,double[],double[],double[],double[],char,double,String) that returns the output argument.
Examples using repairWeightedInfeas:
- Repair.java
Parameters:

lepref - Array of size ROWS containing the preferences for relaxing the less or equal side of row.

gepref - Array of size ROWS containing the preferences for relaxing the greater or equal side of a row.

lbpref - Array of size COLS containing the preferences for relaxing lower bounds.

ubpref - Array of size COLS containing preferences for relaxing upper bounds.
phase2 - Controls the second phase of optimization:
- o: use the objective sense of the original problem (default);
- x: maximize the relaxed problem using the original objective;
- f: skip optimization regarding the original objective;
- n: minimize the relaxed problem using the original objective;
- i: if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
- a: if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
delta - The relaxation multiplier in the second phase -1.

flags - Specifies flags to be passed to optimize.

Returns:

The value that the wrapped function would return in p_status.

repairWeightedInfeasBounds
```
public void repairWeightedInfeasBounds(IntHolder p_status,
                                       double[] lepref,
                                       double[] gepref,
                                       double[] lbpref,
                                       double[] ubpref,
                                       double[] lerelax,
                                       double[] gerelax,
                                       double[] lbrelax,
                                       double[] ubrelax,
                                       char phase2,
                                       double delta,
                                       java.lang.String flags)
                                throws XPRSprobException
```
An extended version of repairWeightedInfeas that allows for bounding the level of relaxation allowed.
Parameters:
p_status - The status after the relaxation:
- 0: relaxed optimum found;
- 1: relaxed problem is infeasible;
- 2: relaxed problem is unbounded;
- 3: solution of the relaxed problem regarding the original objective is nonoptimal;
- 4: error (when return code is nonzero);
- 5: numerical instability;
- 6: analysis of an infeasible relaxation was performed, but the relaxation is feasible.
lepref - Array of size ROWS containing the preferences for relaxing the less or equal side of row. For the console use -lrp value.

gepref - Array of size ROWS containing the preferences for relaxing the greater or equal side of a row. For the console use -grp value.

lbpref - Array of size COLS containing the preferences for relaxing lower bounds. For the console use -lbp value.

ubpref - Array of size COLS containing preferences for relaxing upper bounds. For the console use -ubp value.

lerelax - Array of size ROWS containing the upper bounds on the amount the less or equal side of a row can be relaxed. For the console use -lrb value.

gerelax - Array of size ROWS containing the upper bounds on the amount the greater or equal side of a row can be relaxed. For the console use -grb value.

lbrelax - Array of size COLS containing the upper bounds on the amount the lower bounds can be relaxed. For the console use -lbb value.

ubrelax - Array of size COLS containing the upper bounds on the amount the upper bounds can be relaxed. For the console use -ubb value.
phase2 - Controls the second phase of optimization:
- o: use the objective sense of the original problem (default);
- x: maximize the relaxed problem using the original objective;
- f: skip optimization regarding the original objective;
- n: minimize the relaxed problem using the original objective;
- i: if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
- a: if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
delta - The relaxation multiplier in the second phase -1.

flags - Specifies flags to be passed to optimize.

Throws:

XPRSprobException

repairWeightedInfeasBounds
```
public int repairWeightedInfeasBounds(double[] lepref,
                                      double[] gepref,
                                      double[] lbpref,
                                      double[] ubpref,
                                      double[] lerelax,
                                      double[] gerelax,
                                      double[] lbrelax,
                                      double[] ubrelax,
                                      char phase2,
                                      double delta,
                                      java.lang.String flags)
```
Convenience wrapper for repairWeightedInfeasBounds(com.dashoptimization.IntHolder,double[],double[],double[],double[],double[],double[],double[],double[],char,double,String) that returns the output argument.
Parameters:

lepref - Array of size ROWS containing the preferences for relaxing the less or equal side of row. For the console use -lrp value.

gepref - Array of size ROWS containing the preferences for relaxing the greater or equal side of a row. For the console use -grp value.

lbpref - Array of size COLS containing the preferences for relaxing lower bounds. For the console use -lbp value.

ubpref - Array of size COLS containing preferences for relaxing upper bounds. For the console use -ubp value.

lerelax - Array of size ROWS containing the upper bounds on the amount the less or equal side of a row can be relaxed. For the console use -lrb value.

gerelax - Array of size ROWS containing the upper bounds on the amount the greater or equal side of a row can be relaxed. For the console use -grb value.

lbrelax - Array of size COLS containing the upper bounds on the amount the lower bounds can be relaxed. For the console use -lbb value.

ubrelax - Array of size COLS containing the upper bounds on the amount the upper bounds can be relaxed. For the console use -ubb value.
phase2 - Controls the second phase of optimization:
- o: use the objective sense of the original problem (default);
- x: maximize the relaxed problem using the original objective;
- f: skip optimization regarding the original objective;
- n: minimize the relaxed problem using the original objective;
- i: if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
- a: if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
delta - The relaxation multiplier in the second phase -1.

flags - Specifies flags to be passed to optimize.

Returns:

The value that the wrapped function would return in p_status.

repairInfeas
```
public void repairInfeas(IntHolder p_status,
                         char penalty,
                         char phase2,
                         char flags,
                         double lepref,
                         double gepref,
                         double lbpref,
                         double ubpref,
                         double delta)
                  throws XPRSprobException
```
Provides a simplified interface for repairWeightedInfeas.
Parameters:
p_status - The status after the relaxation:
- 0: relaxed optimum found;
- 1: relaxed problem is infeasible;
- 2: relaxed problem is unbounded;
- 3: solution of the relaxed problem regarding the original objective is nonoptimal;
- 4: error (when return code is nonzero);
- 5: numerical instability;
- 6: analysis of an infeasible relaxation was performed, but the relaxation is feasible.
penalty - The type of penalties created from the preferences:
- c: each penalty is the reciprocal of the preference (default);
- s: the penalties are placed in the scaled problem.
phase2 - Controls the second phase of optimization:
- o: use the objective sense of the original problem (default);
- x: maximize the relaxed problem using the original objective;
- f: skip optimization regarding the original objective;
- n: minimize the relaxed problem using the original objective;
- i: if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
- a: if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
flags - Specifies flags to be passed to optimize.

lepref - Preference for relaxing the less or equal side of row.

gepref - Preference for relaxing the greater or equal side of a row.

lbpref - Preferences for relaxing lower bounds.

ubpref - Preferences for relaxing upper bounds.

delta - The relaxation multiplier in the second phase -1. For console use -d value. A positive value means a relative relaxation by multiplying the first phase objective with ( delta-1), while a negative value means an absolute relaxation, by adding abs(delta) to the first phase objective.

Throws:

XPRSprobException

repairInfeas
```
public int repairInfeas(char penalty,
                        char phase2,
                        char flags,
                        double lepref,
                        double gepref,
                        double lbpref,
                        double ubpref,
                        double delta)
```
Convenience wrapper for repairInfeas(com.dashoptimization.IntHolder,char,char,char,double,double,double,double,double) that returns the output argument.
Parameters:
penalty - The type of penalties created from the preferences:
- c: each penalty is the reciprocal of the preference (default);
- s: the penalties are placed in the scaled problem.
phase2 - Controls the second phase of optimization:
- o: use the objective sense of the original problem (default);
- x: maximize the relaxed problem using the original objective;
- f: skip optimization regarding the original objective;
- n: minimize the relaxed problem using the original objective;
- i: if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
- a: if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
flags - Specifies flags to be passed to optimize.

lepref - Preference for relaxing the less or equal side of row.

gepref - Preference for relaxing the greater or equal side of a row.

lbpref - Preferences for relaxing lower bounds.

ubpref - Preferences for relaxing upper bounds.

delta - The relaxation multiplier in the second phase -1. For console use -d value. A positive value means a relative relaxation by multiplying the first phase objective with ( delta-1), while a negative value means an absolute relaxation, by adding abs(delta) to the first phase objective.

Returns:

The value that the wrapped function would return in p_status.

basisStability
```
public void basisStability(int type,
                           int norm,
                           int scaled,
                           DoubleHolder p_value)
                    throws XPRSprobException
```
Calculates various measures for the stability of the current basis, including the basis condition number.
Parameters:
type -
- 0: Condition number of the basis.
- 1: Stability measure for the solution relative to the current basis.
- 2: Stability measure for the duals relative to the current basis.
- 3: Stability measure for the right hand side relative to the current basis.
- 4: Stability measure for the basic part of the objective relative to the current basis.
norm -
- 0: Use the infinity norm.
- 1: Use the 1 norm.
- 2: Use the Euclidian norm for vectors, and the Frobenius norm for matrices.
scaled - If the stability values are to be calculated in the scaled, or the unscaled matrix.

p_value - Pointer to a double, where the calculated value is to be returned.

Throws:

XPRSprobException

basisStability
```
public double basisStability(int type,
                             int norm,
                             int scaled)
```
Convenience wrapper for basisStability(int,int,int,com.dashoptimization.DoubleHolder) that returns the output argument.
Parameters:
type -
- 0: Condition number of the basis.
- 1: Stability measure for the solution relative to the current basis.
- 2: Stability measure for the duals relative to the current basis.
- 3: Stability measure for the right hand side relative to the current basis.
- 4: Stability measure for the basic part of the objective relative to the current basis.
norm -
- 0: Use the infinity norm.
- 1: Use the 1 norm.
- 2: Use the Euclidian norm for vectors, and the Frobenius norm for matrices.
scaled - If the stability values are to be calculated in the scaled, or the unscaled matrix.

Returns:

The value that the wrapped function would return in p_value.

objSA
```
public void objSA(int ncols,
                  int[] colind,
                  double[] lower,
                  double[] upper)
           throws XPRSprobException
```
Returns upper and lower sensitivity ranges for specified objective function coefficients. If the objective coefficients are varied within these ranges the current basis remains optimal and the reduced costs remain valid.

Parameters:

ncols - Number of objective function coefficients whose sensitivity is sought.

colind - Integer array of length ncols containing the indices of the columns whose objective function coefficients sensitivity ranges are required.

lower - Double array of length ncols where the objective function lower range values are to be returned.

upper - Double array of length ncols where the objective function upper range values are to be returned.

Throws:

XPRSprobException

bndsa
```
public void bndsa(int ncols,
                  int[] colind,
                  double[] lblower,
                  double[] lbupper,
                  double[] ublower,
                  double[] ubupper)
           throws XPRSprobException
```
Returns upper and lower sensitivity ranges for specified variables' lower and upper bounds. If the bounds are varied within these ranges the current basis remains optimal and feasible.

Parameters:

ncols - Number of variables whose sensitivity is sought.

colind - Integer array of length ncols containing the indices of the columns whose bounds' ranges are required.

lblower - Double array of length ncols where the variable lower bound lower range values are to be returned.

lbupper - Double array of length ncols where the variable lower bound upper range values are to be returned.

ublower - Double array of length ncols where the variable upper bound lower range values are to be returned.

ubupper - Double array of length ncols where the variable upper bound upper range values are to be returned.

Throws:

XPRSprobException

rhsSA
```
public void rhsSA(int nrows,
                  int[] rowind,
                  double[] lower,
                  double[] upper)
           throws XPRSprobException
```
Returns upper and lower sensitivity ranges for specified right hand side (RHS) function coefficients. If the RHS coefficients are varied within these ranges the current basis remains optimal and the reduced costs remain valid.

Parameters:

nrows - The number of RHS coefficients for which sensitivity ranges are required.

rowind - Integer array of length nrows containing the indices of the rows whose RHS coefficients sensitivity ranges are required.

lower - Double array of length nrows where the RHS lower range values are to be returned.

upper - Double array of length nrows where the RHS upper range values are to be returned.

Throws:

XPRSprobException

addQMatrix
```
public void addQMatrix(int row,
                       int ncoefs,
                       int[] rowqcol1,
                       int[] rowqcol2,
                       double[] rowqcoef)
                throws XPRSprobException
```
Adds a new quadratic matrix into a row defined by triplets.

Parameters:

row - Index of the row where the quadratic matrix is to be added.

ncoefs - Number of triplets used to define the quadratic matrix. This may be less than the number of coefficients in the quadratic matrix, since off diagonals and their transposed pairs are defined by one triplet.

rowqcol1 - First index in the triplets.

rowqcol2 - Second index in the triplets.

rowqcoef - Coefficients in the triplets.

Throws:

XPRSprobException

addQMatrix
```
public void addQMatrix(int row,
                       long ncoefs,
                       int[] rowqcol1,
                       int[] rowqcol2,
                       double[] rowqcoef)
                throws XPRSprobException
```
Adds a new quadratic matrix into a row defined by triplets.

Parameters:

row - Index of the row where the quadratic matrix is to be added.

ncoefs - Number of triplets used to define the quadratic matrix. This may be less than the number of coefficients in the quadratic matrix, since off diagonals and their transposed pairs are defined by one triplet.

rowqcol1 - First index in the triplets.

rowqcol2 - Second index in the triplets.

rowqcoef - Coefficients in the triplets.

Throws:

XPRSprobException

delQMatrix
```
public void delQMatrix(int row)
                throws XPRSprobException
```
Deletes the quadratic part of a row or of the objective function.

Parameters:

row - Index of row from which the quadratic part is to be deleted.

Throws:

XPRSprobException

loadQCQP
```
public void loadQCQP(java.lang.String probname,
                     int ncols,
                     int nrows,
                     byte[] rowtype,
                     double[] rhs,
                     double[] rng,
                     double[] objcoef,
                     int[] start,
                     int[] collen,
                     int[] rowind,
                     double[] rowcoef,
                     double[] lb,
                     double[] ub,
                     int nobjqcoefs,
                     int[] objqcol1,
                     int[] objqcol2,
                     double[] objqcoef,
                     int nqrows,
                     int[] qrowind,
                     int[] nrowqcoefs,
                     int[] rowqcol1,
                     int[] rowqcol2,
                     double[] rowqcoef)
              throws XPRSprobException
```
Used to load a quadratic problem with quadratic side constraints into the Optimizer data structure. Such a problem may have quadratic terms in its objective function as well as in its constraints.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint (use this one for quadratic constraints as well);
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if there are no ranged constraints. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

nqrows - Number of rows containing quadratic matrices.

qrowind - Integer array of size nqrows, containing the indices of rows with quadratic matrices in them. Note that the rows are expected to be defined in rowtype as type L. May be null if the problem contains no quadratic constraints.

nrowqcoefs - Integer array of size nqrows, containing the number of nonzeros in each quadratic constraint matrix. May be null if the problem contains no quadratic constraints.

rowqcol1 - Integer array of size nqcelem, where nqcelem equals the sum of the elements in nrowqcoefs (i.e. the total number of quadratic matrix elements in all the constraints). It contains the first column indices of the quadratic matrices. Indices for the first matrix are listed from 0 to nrowqcoefs[0]-1, for the second matrix from nrowqcoefs[0] to nrowqcoefs[0]+ nrowqcoefs[1]-1, etc. May be null if the problem contains no quadratic constraints.

rowqcol2 - Integer array of size nqcelem, containing the second index for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

rowqcoef - Integer array of size nqcelem, containing the coefficients for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

Throws:

XPRSprobException

loadQCQP
```
public void loadQCQP(java.lang.String probname,
                     int ncols,
                     int nrows,
                     byte[] rowtype,
                     double[] rhs,
                     double[] rng,
                     double[] objcoef,
                     long[] start,
                     int[] collen,
                     int[] rowind,
                     double[] rowcoef,
                     double[] lb,
                     double[] ub,
                     long nobjqcoefs,
                     int[] objqcol1,
                     int[] objqcol2,
                     double[] objqcoef,
                     int nqrows,
                     int[] qrowind,
                     long[] nrowqcoefs,
                     int[] rowqcol1,
                     int[] rowqcol2,
                     double[] rowqcoef)
              throws XPRSprobException
```
Used to load a quadratic problem with quadratic side constraints into the Optimizer data structure. Such a problem may have quadratic terms in its objective function as well as in its constraints.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint (use this one for quadratic constraints as well);
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if there are no ranged constraints. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

nqrows - Number of rows containing quadratic matrices.

qrowind - Integer array of size nqrows, containing the indices of rows with quadratic matrices in them. Note that the rows are expected to be defined in rowtype as type L. May be null if the problem contains no quadratic constraints.

nrowqcoefs - Integer array of size nqrows, containing the number of nonzeros in each quadratic constraint matrix. May be null if the problem contains no quadratic constraints.

rowqcol1 - Integer array of size nqcelem, where nqcelem equals the sum of the elements in nrowqcoefs (i.e. the total number of quadratic matrix elements in all the constraints). It contains the first column indices of the quadratic matrices. Indices for the first matrix are listed from 0 to nrowqcoefs[0]-1, for the second matrix from nrowqcoefs[0] to nrowqcoefs[0]+ nrowqcoefs[1]-1, etc. May be null if the problem contains no quadratic constraints.

rowqcol2 - Integer array of size nqcelem, containing the second index for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

rowqcoef - Integer array of size nqcelem, containing the coefficients for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

Throws:

XPRSprobException

loadMIQCQP
```
public void loadMIQCQP(java.lang.String probname,
                       int ncols,
                       int nrows,
                       byte[] rowtype,
                       double[] rhs,
                       double[] rng,
                       double[] objcoef,
                       int[] start,
                       int[] collen,
                       int[] rowind,
                       double[] rowcoef,
                       double[] lb,
                       double[] ub,
                       int nobjqcoefs,
                       int[] objqcol1,
                       int[] objqcol2,
                       double[] objqcoef,
                       int nqrows,
                       int[] qrowind,
                       int[] nrowqcoefs,
                       int[] rowqcol1,
                       int[] rowqcol2,
                       double[] rowqcoef,
                       int nentities,
                       int nsets,
                       byte[] coltype,
                       int[] entind,
                       double[] limit,
                       byte[] settype,
                       int[] setstart,
                       int[] setind,
                       double[] refval)
                throws XPRSprobException
```
Used to load a mixed integer quadratic problem with quadratic constraints into the Optimizer data structure. Such a problem may have quadratic terms in its objective function as well as in its constraints. Integer, binary, partial integer, semi-continuous and semi-continuous integer variables can be defined, together with sets of type 1 and 2. The reference row values for the set members are passed as an array rather than specifying a reference row.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint (use this one for quadratic constraints as well);
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if there are no ranged constraints. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

nqrows - Number of rows containing quadratic matrices.

qrowind - Integer array of size nqrows, containing the indices of rows with quadratic matrices in them. Note that the rows are expected to be defined in rowtype as type L. May be null if the problem contains no quadratic constraints.

nrowqcoefs - Integer array of size nqrows, containing the number of nonzeros in each quadratic constraint matrix. May be null if the problem contains no quadratic constraints.

rowqcol1 - Integer array of size nqcelem, where nqcelem equals the sum of the elements in nrowqcoefs (i.e. the total number of quadratic matrix elements in all the constraints). It contains the first column indices of the quadratic matrices. Indices for the first matrix are listed from 0 to nrowqcoefs[0]-1, for the second matrix from nrowqcoefs[0] to nrowqcoefs[0]+ nrowqcoefs[1]-1, etc. May be null if the problem contains no quadratic constraints.

rowqcol2 - Integer array of size nqcelem, containing the second index for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

rowqcoef - Integer array of size nqcelem, containing the coefficients for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

nentities - Number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities.

nsets - Number of SOS1 and SOS2 sets.
coltype - Character array of length nentities containing the entity types:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integer variables.
May be null if all variables are continuous.
entind - Integer array of length nentities containing the column indices of the MIP entities. May be null if the problem contains no entities.

limit - Double array of length nentities containing the integer limits for the partial integer variables and lower bounds for semi-continuous and semi-continuous integer variables (any entries in the positions corresponding to binary and integer variables will be ignored). May be null if not required.
settype - Character array of length nsets containing the set types:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
setstart - Integer array containing the offsets in the setind and refval arrays indicating the start of each set. This array has one entry for each set plus one extra entry containing the offset where an additional set would start, if it were present. May be null if not required.

setind - Integer array of length setstart[nsets]-1 containing the columns in each set. May be null if not required.

refval - Double array of length setstart[nsets]-1 containing the reference row entries for each member of the sets. These define the order for SOS2 constraints and may be used in branching for both types. May be null if not required.

Throws:

XPRSprobException

loadMIQCQP
```
public void loadMIQCQP(java.lang.String probname,
                       int ncols,
                       int nrows,
                       byte[] rowtype,
                       double[] rhs,
                       double[] rng,
                       double[] objcoef,
                       long[] start,
                       int[] collen,
                       int[] rowind,
                       double[] rowcoef,
                       double[] lb,
                       double[] ub,
                       long nobjqcoefs,
                       int[] objqcol1,
                       int[] objqcol2,
                       double[] objqcoef,
                       int nqrows,
                       int[] qrowind,
                       long[] nrowqcoefs,
                       int[] rowqcol1,
                       int[] rowqcol2,
                       double[] rowqcoef,
                       int nentities,
                       int nsets,
                       byte[] coltype,
                       int[] entind,
                       double[] limit,
                       byte[] settype,
                       long[] setstart,
                       int[] setind,
                       double[] refval)
                throws XPRSprobException
```
Used to load a mixed integer quadratic problem with quadratic constraints into the Optimizer data structure. Such a problem may have quadratic terms in its objective function as well as in its constraints. Integer, binary, partial integer, semi-continuous and semi-continuous integer variables can be defined, together with sets of type 1 and 2. The reference row values for the set members are passed as an array rather than specifying a reference row.
Parameters:

probname - A string of up to MAXPROBNAMELENGTH characters containing a name for the problem. If probname is null, the problem name will be an empty string.

ncols - Number of structural columns in the matrix.

nrows - Number of rows in the matrix (not including the objective row). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.
rowtype - Character array of length nrows containing the row types:
- L: indicates a <= constraint (use this one for quadratic constraints as well);
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint;
- N: indicates a nonbinding constraint.
May be null if the problem contains no rows.
rhs - Double array of length nrows containing the right hand side coefficients of the rows. The right hand side value for a range row gives the upper bound on the row. May be null if the problem contains no rows.

rng - Double array of length nrows containing the range values for range rows. Values for all other rows will be ignored. May be null if there are no ranged constraints. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef - Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero).

start - Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array contains one entry for each column, plus one more if collen is null. If collen is null, the last entry of start contains the position in the rowind and rowcoef arrays at which an extra column would start, if it were present. This value is also the length of the rowind and rowcoef arrays. May be null if the problem contains no coefficients.

collen - Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are contiguous, and the start array has an additional entry as described above.

rowind - Integer array containing the row indices for the nonzero elements in each column. May be null if the problem contains no coefficients. If the indices are input contiguously, with the columns in ascending order, the length of the rowind array is found by adding the start entry for the last column to the collen entry for the last column, or if collen is null, by the additional entry at the end of start.

rowcoef - Double array containing the nonzero element values; length as for rowind. May be null if the problem contains no coefficients.

lb - Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub - Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. If this is null then all upper bounds are infinite.

nobjqcoefs - Number of quadratic terms.

objqcol1 - Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term. May be null if all objective coefficients are zero.

objqcol2 - Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term. May be null if all objective coefficients are zero.

objqcoef - Double array of size nobjqcoefs containing the quadratic coefficients. May be null if all objective coefficients are zero.

nqrows - Number of rows containing quadratic matrices.

qrowind - Integer array of size nqrows, containing the indices of rows with quadratic matrices in them. Note that the rows are expected to be defined in rowtype as type L. May be null if the problem contains no quadratic constraints.

nrowqcoefs - Integer array of size nqrows, containing the number of nonzeros in each quadratic constraint matrix. May be null if the problem contains no quadratic constraints.

rowqcol1 - Integer array of size nqcelem, where nqcelem equals the sum of the elements in nrowqcoefs (i.e. the total number of quadratic matrix elements in all the constraints). It contains the first column indices of the quadratic matrices. Indices for the first matrix are listed from 0 to nrowqcoefs[0]-1, for the second matrix from nrowqcoefs[0] to nrowqcoefs[0]+ nrowqcoefs[1]-1, etc. May be null if the problem contains no quadratic constraints.

rowqcol2 - Integer array of size nqcelem, containing the second index for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

rowqcoef - Integer array of size nqcelem, containing the coefficients for the quadratic constraint matrices. May be null if the problem contains no quadratic constraints.

nentities - Number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities.

nsets - Number of SOS1 and SOS2 sets.
coltype - Character array of length nentities containing the entity types:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integer variables.
May be null if all variables are continuous.
entind - Integer array of length nentities containing the column indices of the MIP entities. May be null if the problem contains no entities.

limit - Double array of length nentities containing the integer limits for the partial integer variables and lower bounds for semi-continuous and semi-continuous integer variables (any entries in the positions corresponding to binary and integer variables will be ignored). May be null if not required.
settype - Character array of length nsets containing the set types:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
setstart - Integer array containing the offsets in the setind and refval arrays indicating the start of each set. This array has one entry for each set plus one extra entry containing the offset where an additional set would start, if it were present. May be null if not required.

setind - Integer array of length setstart[nsets]-1 containing the columns in each set. May be null if not required.

refval - Double array of length setstart[nsets]-1 containing the reference row entries for each member of the sets. These define the order for SOS2 constraints and may be used in branching for both types. May be null if not required.

Throws:

XPRSprobException

addObj
```
public void addObj(int ncols,
                   int[] colind,
                   double[] objcoef,
                   int priority,
                   double weight)
            throws XPRSprobException
```
Appends an objective function with the given coefficients to a multi-objective problem. The weight and priority of the objective are set to the given values.

Parameters:

ncols - Number of objective function coefficient elements to add.

colind - Integer array of length ncols containing the indices of the columns whose objective coefficients will change. An index of -1 indicates that the fixed part of the objective function on the right hand side should change.

objcoef - Double array of length ncols giving the new objective function coefficients.

priority - An integer defining the relative priority for the new objective (only relevant for multi-objective problems). Higher values mean higher priority. During optimization, objectives with the same priority are combined together in a weighted sum.

weight - A double defining the weight for the new objective (only relevant for multi-objective problems). If the weight is negative, the sense of this objective is reversed.

Throws:

XPRSprobException

chgObjN
```
public void chgObjN(int objidx,
                    int ncols,
                    int[] colind,
                    double[] objcoef)
             throws XPRSprobException
```
Modifies one or more coefficients of an objective function in a multi-objective problem. If the objective already exists, any coefficients not present in the colind and objcoef arrays will unchanged. If the objective does not exist, it will be added to the problem.
Examples using chgObjN:
- GoalProg.java
Parameters:

objidx - Index of the objective function to add or modify.

ncols - Number of objective function coefficient elements to change.

colind - Integer array of length ncols containing the indices of the columns whose objective coefficients will change. An index of -1 indicates that the fixed part of the objective function on the right hand side should change.

objcoef - Double array of length ncols giving the new objective function coefficients.

Throws:

XPRSprobException

delObj
```
public void delObj(int objidx)
            throws XPRSprobException
```
Removes an objective function from the problem. Any objectives with index > objidx will be shifted down.

Parameters:

objidx - Index of the objective to remove.

Throws:

XPRSprobException

copyCallBacks
```
public void copyCallBacks(XPRSprob src)
                   throws XPRSprobException
```
Copies callback functions defined for one problem to another.

Parameters:

src - The problem from which the callbacks are copied.

Throws:

XPRSprobException

copyControls
```
public void copyControls(XPRSprob src)
                  throws XPRSprobException
```
Copies controls defined for one problem to another.

Parameters:

src - The problem from which the controls are copied.

Throws:

XPRSprobException

destroyProb

@Deprecated
public void destroyProb()
                 throws XPRSprobException

Deprecated.

use close() instead.

Throws:: XPRSprobException

interrupt
```
public void interrupt(XPRSenumerations.StopType reason)
               throws XPRSprobException
```
Interrupts the Optimizer algorithms.
Parameters:
reason - The reason for stopping. Possible reasons are:
- XPRS_STOP_NONE: do not stop;
- XPRS_STOP_TIMELIMIT: time limit hit;
- XPRS_STOP_WORKLIMIT: work limit hit;
- XPRS_STOP_CTRLC: control C hit;
- XPRS_STOP_NODELIMIT: node limit hit;
- XPRS_STOP_ITERLIMIT: iteration limit hit;
- XPRS_STOP_MIPGAP: MIP gap is sufficiently small;
- XPRS_STOP_SOLLIMIT: solution limit hit;
- XPRS_STOP_USER: user interrupt;
- XPRS_STOP_NEXTOBJECTIVE: stop the current solve, but continue with solving the next objective (see below);
- >= 1000: user defined value.
Throws:

XPRSprobException

interrupt
```
public void interrupt()
               throws XPRSprobException
```
Convenience wrapper for interrupt(XPRSenumerations.StopType).

Throws:

XPRSprobException

See Also:

interrupt(XPRSenumerations.StopType)

getProbName
```
public void getProbName(StringHolder name)
                 throws XPRSprobException
```
Returns the current problem name.
Examples using getProbName:
- AddMipSol.java
- Tableau.java
Parameters:

name - A buffer of MAXPROBNAMELENGTH+1 bytes to contain the current problem name.

Throws:

XPRSprobException

getProbName
```
public java.lang.String getProbName()
                             throws XPRSprobException
```
Convenience wrapper for getProbName(com.dashoptimization.StringHolder).

Returns:

The value that would be returned by getProbName(com.dashoptimization.StringHolder) as output parameter.

Throws:

XPRSprobException

See Also:

getProbName(com.dashoptimization.StringHolder)

setIntControl
```
public void setIntControl(int control,
                          int value)
                   throws XPRSprobException
```
Sets the value of a given integer control parameter.
Examples using setIntControl:
- Callback.java
- IISExample.java
Parameters:

control - Control parameter whose value is to be set. A full list of all controls may be found in , or from the list in the xprs.h header file.

value - Value to which the control parameter is to be set.

Throws:

XPRSprobException

setLongControl
```
public void setLongControl(int control,
                           long value)
                    throws XPRSprobException
```
Sets the value of a given integer control parameter.

Parameters:

control - Control parameter whose value is to be set. A full list of all controls may be found in , or from the list in the xprs.h header file.

value - Value to which the control parameter is to be set.

Throws:

XPRSprobException

setDblControl
```
public void setDblControl(int control,
                          double value)
                   throws XPRSprobException
```
Sets the value of a given double control parameter.

Parameters:

control - Control parameter whose value is to be set. A full list of all controls may be found in , or from the list in the xprs.h header file.

value - Value to which the control parameter is to be set.

Throws:

XPRSprobException

setStrControl
```
public void setStrControl(int control,
                          java.lang.String value)
                   throws XPRSprobException
```
Used to set the value of a given string control parameter.

Parameters:

control - Control parameter whose value is to be set. A full list of all controls may be found in , or from the list in the xprs.h header file.

value - A string containing the value to which the control is to be set (plus a null terminator).

Throws:

XPRSprobException

getIntControl
```
public void getIntControl(int control,
                          IntHolder p_value)
                   throws XPRSprobException
```
Enables users to recover the values of various integer control parameters

Parameters:

control - Control parameter whose value is to be returned. A full list of all controls may be found in Chapter , or from the list in the xprs.h header file.

p_value - Pointer to an integer where the value of the control will be returned.

Throws:

XPRSprobException

getIntControl
```
public int getIntControl(int control)
```
Convenience wrapper for getIntControl(int,com.dashoptimization.IntHolder) that returns the output argument.

Parameters:

control - Control parameter whose value is to be returned. A full list of all controls may be found in Chapter , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getLongControl
```
public void getLongControl(int control,
                           LongHolder p_value)
                    throws XPRSprobException
```
Enables users to recover the values of various integer control parameters

Parameters:

control - Control parameter whose value is to be returned. A full list of all controls may be found in Chapter , or from the list in the xprs.h header file.

p_value - Pointer to an integer where the value of the control will be returned.

Throws:

XPRSprobException

getLongControl
```
public long getLongControl(int control)
```
Convenience wrapper for getLongControl(int,com.dashoptimization.LongHolder) that returns the output argument.

Parameters:

control - Control parameter whose value is to be returned. A full list of all controls may be found in Chapter , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getDblControl
```
public void getDblControl(int control,
                          DoubleHolder p_value)
                   throws XPRSprobException
```
Retrieves the value of a given double control parameter.

Parameters:

control - Control parameter whose value is to be returned. A full list of all controls may be found in Chapter , or from the list in the xprs.h header file.

p_value - Pointer to the location where the control value will be returned.

Throws:

XPRSprobException

getDblControl
```
public double getDblControl(int control)
```
Convenience wrapper for getDblControl(int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

control - Control parameter whose value is to be returned. A full list of all controls may be found in Chapter , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getStringControl
```
public void getStringControl(int control,
                             StringHolder value,
                             int maxbytes,
                             IntHolder p_nbytes)
                      throws XPRSprobException
```
Returns the value of a given string control parameters.

Parameters:

control - Control parameter whose value is to be returned. A full list of all controls may be found in , or from the list in the xprs.h header file.

value - Pointer to a string where the value of the control (plus null terminator) will be returned. May be null when maxbytes is zero, in order to retrieve the length of the control.

maxbytes - Maximum number of bytes to be written into the value argument.

p_nbytes - Returns the length of the string control including the null terminator.

Throws:

XPRSprobException

getIntAttrib
```
public void getIntAttrib(int attrib,
                         IntHolder p_value)
                  throws XPRSprobException
```
Enables users to recover the values of various integer problem attributes. Problem attributes are set during loading and optimization of a problem.
Examples using getIntAttrib:
- IISExample.java
Parameters:

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in Chapter , or from the list in the xprs.h header file.

p_value - Pointer to an integer where the value of the problem attribute will be returned.

Throws:

XPRSprobException

getIntAttrib
```
public int getIntAttrib(int attrib)
```
Convenience wrapper for getIntAttrib(int,com.dashoptimization.IntHolder) that returns the output argument.
Examples using getIntAttrib:
- IISExample.java
Parameters:

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in Chapter , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getLongAttrib
```
public void getLongAttrib(int attrib,
                          LongHolder p_value)
                   throws XPRSprobException
```
Enables users to recover the values of various integer problem attributes. Problem attributes are set during loading and optimization of a problem.

Parameters:

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in Chapter , or from the list in the xprs.h header file.

p_value - Pointer to an integer where the value of the problem attribute will be returned.

Throws:

XPRSprobException

getLongAttrib
```
public long getLongAttrib(int attrib)
```
Convenience wrapper for getLongAttrib(int,com.dashoptimization.LongHolder) that returns the output argument.

Parameters:

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in Chapter , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getStrStringAttrib
```
public void getStrStringAttrib(int attrib,
                               StringHolder value,
                               int maxbytes,
                               IntHolder p_nbytes)
                        throws XPRSprobException
```
Enables users to recover the values of various string problem attributes. Problem attributes are set during loading and optimization of a problem.

Parameters:

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in , or from the list in the xprs.h header file.

value - Pointer to a string where the value of the attribute (plus null terminator) will be returned. May be null when maxbytes is zero, in order to retrieve the length of the attribute.

maxbytes - Maximum number of bytes to be written into the cgval argument.

p_nbytes - Returns the length of the string control including the null terminator.

Throws:

XPRSprobException

getDblAttrib
```
public void getDblAttrib(int attrib,
                         DoubleHolder p_value)
                  throws XPRSprobException
```
Enables users to retrieve the values of various double problem attributes. Problem attributes are set during loading and optimization of a problem.

Parameters:

attrib - Problem attribute whose value is to be returned. A full list of all available problem attributes may be found in Chapter , or from the list in the xprs.h header file.

p_value - Pointer to a double where the value of the problem attribute will be returned.

Throws:

XPRSprobException

getDblAttrib
```
public double getDblAttrib(int attrib)
```
Convenience wrapper for getDblAttrib(int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

attrib - Problem attribute whose value is to be returned. A full list of all available problem attributes may be found in Chapter , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getControlInfo

public void getControlInfo(java.lang.String name,
                           IntHolder p_id,
                           XPRSenumerationHolders.ParameterType p_type)
                    throws XPRSprobException

Accesses the id number and the type information of a control given its name. A control name may be for example XPRS_PRESOLVE. Names are case-insensitive and may or may not have the XPRS_ prefix. The id number is the constant used to identify the control in the C API. The type information returned will be one of the below integer constants. The function will return an id number of 0 and a type value of XPRS_TYPE_NOTDEFINED if the name is not recognized as a control name. Note that this will occur if the name is an attribute name and not a control name.

Parameters:

name - The name of the control to be queried. Names are case-insensitive and may or may not have the XPRS_ prefix. A full list of all controls may be found in , or from the list in the xprs.h header file.

p_id - Pointer to an integer where the id number will be returned.

p_type - Pointer to an integer where the type information will be returned. The returned value will be one of the following constants from xprs.h:

XPRS_TYPE_NOTDEFINED	The name was not recognized.
XPRS_TYPE_INT	32-bit integer.
XPRS_TYPE_INT64	64-bit integer.
XPRS_TYPE_DOUBLE	Double precision floating point.
XPRS_TYPE_STRING	String.

Throws:

XPRSprobException

getAttribInfo

public void getAttribInfo(java.lang.String name,
                          IntHolder p_id,
                          XPRSenumerationHolders.ParameterType p_type)
                   throws XPRSprobException

Accesses the id number and the type information of an attribute given its name. An attribute name may be for example XPRS_ROWS. Names are case-insensitive and may or may not have the XPRS_ prefix. The id number is the constant used to identify the attribute in the C API. The type information returned will be one of the below integer constants. The function will return an id number of 0 and a type value of XPRS_TYPE_NOTDEFINED if the name is not recognized as an attribute name. Note that this will occur if the name is a control name and not an attribute name.

Parameters:

name - The name of the attribute to be queried. Names are case-insensitive and may or may not have the XPRS_ prefix. A full list of all attributes may be found in Chapter , or from the list in the xprs.h header file.

p_id - Pointer to an integer where the id number will be returned.

p_type - Pointer to an integer where the type id will be returned. The value will be one of the following constants from xprs.h:

XPRS_TYPE_NOTDEFINED	The name was not recognized.
XPRS_TYPE_INT	32-bit integer.
XPRS_TYPE_INT64	64-bit integer.
XPRS_TYPE_DOUBLE	Double precision floating point.
XPRS_TYPE_STRING	String.

Throws:

XPRSprobException

getIndex
```
public void getIndex(int type,
                     java.lang.String name,
                     IntHolder p_index)
              throws XPRSprobException
```
Returns the index for a specified row or column name.
Examples using getIndex:
Parameters:
type -
- XPRS_NAMES_ROW: (=1) if row index is required;
- XPRS_NAMES_COLUMN: (=2) if column index is required;
- XPRS_NAMES_SET: (=3) if set index is required;
- XPRS_NAMES_PWLCONS: (=4) if piecewise linear constraint index is required;
- XPRS_NAMES_GENCONS: (=5) if general constraint index is required;
- XPRS_NAMES_OBJECTIVE: (=6) if objective index is required;
- XPRS_NAMES_USERFUNC: (=7) if user function index is required;
- XPRS_NAMES_INTERNALFUNC: (=8) if an internal function index is required.
name - Null terminated string.

p_index - Pointer of the integer where the row or column index number will be returned. A value of -1 will be returned if the row or column does not exist.

Throws:

XPRSprobException

getIndex
```
public int getIndex(int type,
                    java.lang.String name)
```
Convenience wrapper for getIndex(int,String,com.dashoptimization.IntHolder) that returns the output argument.
Examples using getIndex:
Parameters:
type -
- XPRS_NAMES_ROW: (=1) if row index is required;
- XPRS_NAMES_COLUMN: (=2) if column index is required;
- XPRS_NAMES_SET: (=3) if set index is required;
- XPRS_NAMES_PWLCONS: (=4) if piecewise linear constraint index is required;
- XPRS_NAMES_GENCONS: (=5) if general constraint index is required;
- XPRS_NAMES_OBJECTIVE: (=6) if objective index is required;
- XPRS_NAMES_USERFUNC: (=7) if user function index is required;
- XPRS_NAMES_INTERNALFUNC: (=8) if an internal function index is required.
name - Null terminated string.

Returns:

The value that the wrapped function would return in p_index.

getLastError
```
public void getLastError(StringHolder errmsg)
                  throws XPRSprobException
```
Returns the error message corresponding to the last error encountered by a library function.

Parameters:

errmsg - A 512 character buffer where the last error message will be returned. If the message is longer than 512 characters then it will be truncated. The message will always be terminated by a NUL character.

Throws:

XPRSprobException

getLastError
```
public java.lang.String getLastError()
                              throws XPRSprobException
```
Convenience wrapper for getLastError(com.dashoptimization.StringHolder).

Specified by:

getLastError in class XPRSobject

Returns:

The value that would be returned by getLastError(com.dashoptimization.StringHolder) as output parameter.

Throws:

XPRSprobException

See Also:

getLastError(com.dashoptimization.StringHolder)

setObjIntControl
```
public void setObjIntControl(int objidx,
                             XPRSenumerations.ObjControl control,
                             int value)
                      throws XPRSprobException
```
Sets the value of a given integer control parameter associated with an objective. These parameters control how the objective is treated during multi-objective optimization.
Examples using setObjIntControl:
- CapitalBudgeting.java
- GoalProg.java
Parameters:

objidx - Index of the objective to modify.
control - Control parameter whose value is to be modified. Must be one of:
- XPRS_OBJECTIVE_PRIORITY: set the priority of the given objective.
value - Value to which the control parameter is to be set.

Throws:

XPRSprobException

setObjDblControl
```
public void setObjDblControl(int objidx,
                             XPRSenumerations.ObjControl control,
                             double value)
                      throws XPRSprobException
```
Sets the value of a given double control parameter associated with an objective. These parameters control how the objective is treated during multi-objective optimization.
Examples using setObjDblControl:
- GoalProg.java
Parameters:

objidx - Index of the objective to modify.
control - Control parameter whose value is to be modified. Must be one of:
- XPRS_OBJECTIVE_WEIGHT: set the weight of the given objective;
- XPRS_OBJECTIVE_ABSTOL: set the absolute tolerance of the given objective;
- XPRS_OBJECTIVE_RELTOL: set the relative tolerance of the given objective;
- XPRS_OBJECTIVE_RHS: set the constant term of the given objective.
value - Value to which the control parameter is to be set.

Throws:

XPRSprobException

getObjIntControl
```
public void getObjIntControl(int objidx,
                             XPRSenumerations.ObjControl control,
                             IntHolder p_value)
                      throws XPRSprobException
```
Retrieves the value of a given integer control parameter associated with an objective. These parameters control how the objective is treated during multi-objective optimization.
Parameters:

objidx - Index of the objective to query.
control - Control parameter whose value is to be returned. Must be one of:
- XPRS_OBJECTIVE_PRIORITY: get the priority of the given objective.
p_value - Pointer to an integer where the control value will be returned.

Throws:

XPRSprobException

getObjIntControl
```
public int getObjIntControl(int objidx,
                            XPRSenumerations.ObjControl control)
```
Convenience wrapper for getObjIntControl(int,XPRSenumerations.ObjControl,com.dashoptimization.IntHolder) that returns the output argument.
Parameters:

objidx - Index of the objective to query.
control - Control parameter whose value is to be returned. Must be one of:
- XPRS_OBJECTIVE_PRIORITY: get the priority of the given objective.
Returns:

The value that the wrapped function would return in p_value.

getObjDblControl
```
public void getObjDblControl(int objidx,
                             XPRSenumerations.ObjControl control,
                             DoubleHolder p_value)
                      throws XPRSprobException
```
Retrieves the value of a given double control parameter associated with an objective function. These parameters control how the objective is treated during multi-objective optimization.
Parameters:

objidx - Index of the objective to query.
control - Control parameter whose value is to be returned. Must be one of:
- XPRS_OBJECTIVE_WEIGHT: get the weight of the given objective;
- XPRS_OBJECTIVE_ABSTOL: get the absolute tolerance of the given objective;
- XPRS_OBJECTIVE_RELTOL: get the relative tolerance of the given objective;
- XPRS_OBJECTIVE_RHS: get the constant term of the given objective.
p_value - Pointer to a double where the control value will be returned.

Throws:

XPRSprobException

getObjDblControl
```
public double getObjDblControl(int objidx,
                               XPRSenumerations.ObjControl control)
```
Convenience wrapper for getObjDblControl(int,XPRSenumerations.ObjControl,com.dashoptimization.DoubleHolder) that returns the output argument.
Parameters:

objidx - Index of the objective to query.
control - Control parameter whose value is to be returned. Must be one of:
- XPRS_OBJECTIVE_WEIGHT: get the weight of the given objective;
- XPRS_OBJECTIVE_ABSTOL: get the absolute tolerance of the given objective;
- XPRS_OBJECTIVE_RELTOL: get the relative tolerance of the given objective;
- XPRS_OBJECTIVE_RHS: get the constant term of the given objective.
Returns:

The value that the wrapped function would return in p_value.

getObjIntAttrib
```
public void getObjIntAttrib(int solveidx,
                            int attrib,
                            IntHolder p_value)
                     throws XPRSprobException
```
Retrieves the value of a given integer attribute associated with a multi-objective solve. When solving a multi-objective problem, several objectives might be optimized in sequence. After each solve, the problem attributes are captured so that they can be queried afterwards.

Parameters:

solveidx - Index of the solve to query. Must be between 0 and SOLVEDOBJS-1.

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in , or from the list in the xprs.h header file.

p_value - Pointer to an integer where attribute value will be returned.

Throws:

XPRSprobException

getObjIntAttrib
```
public int getObjIntAttrib(int solveidx,
                           int attrib)
```
Convenience wrapper for getObjIntAttrib(int,int,com.dashoptimization.IntHolder) that returns the output argument.

Parameters:

solveidx - Index of the solve to query. Must be between 0 and SOLVEDOBJS-1.

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getObjIntAttrib
```
public void getObjIntAttrib(int solveidx,
                            int attrib,
                            LongHolder p_value)
                     throws XPRSprobException
```
Retrieves the value of a given integer attribute associated with a multi-objective solve. When solving a multi-objective problem, several objectives might be optimized in sequence. After each solve, the problem attributes are captured so that they can be queried afterwards.

Parameters:

solveidx - Index of the solve to query. Must be between 0 and SOLVEDOBJS-1.

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in , or from the list in the xprs.h header file.

p_value - Pointer to an integer where attribute value will be returned.

Throws:

XPRSprobException

getObjLongAttrib
```
public long getObjLongAttrib(int solveidx,
                             int attrib)
```
Convenience wrapper for getObjIntAttrib(int,int,com.dashoptimization.LongHolder) that returns the output argument.

Parameters:

solveidx - Index of the solve to query. Must be between 0 and SOLVEDOBJS-1.

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getObjDblAttrib
```
public void getObjDblAttrib(int solveidx,
                            int attrib,
                            DoubleHolder p_value)
                     throws XPRSprobException
```
Retrieves the value of a given double attribute associated with a multi-objective solve. When solving a multi-objective problem, several objectives might be optimized in sequence. After each solve, the problem attributes are captured so that they can be queried afterwards.

Parameters:

solveidx - Index of the solve to query. Must be between 0 and SOLVEDOBJS-1.

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in , or from the list in the xprs.h header file.

p_value - Pointer to a double where attribute value will be returned.

Throws:

XPRSprobException

getObjDblAttrib
```
public double getObjDblAttrib(int solveidx,
                              int attrib)
```
Convenience wrapper for getObjDblAttrib(int,int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

solveidx - Index of the solve to query. Must be between 0 and SOLVEDOBJS-1.

attrib - Problem attribute whose value is to be returned. A full list of all problem attributes may be found in , or from the list in the xprs.h header file.

Returns:

The value that the wrapped function would return in p_value.

getQObj
```
public void getQObj(int objqcol1,
                    int objqcol2,
                    DoubleHolder p_objqcoef)
             throws XPRSprobException
```
Returns a single quadratic objective function coefficient corresponding to the variable pair (objqcol1, objqcol2) of the Hessian matrix.

Parameters:

objqcol1 - Column index for the first variable in the quadratic term.

objqcol2 - Column index for the second variable in the quadratic term.

p_objqcoef - Pointer to a double value where the objective function coefficient is to be placed.

Throws:

XPRSprobException

getQObj
```
public double getQObj(int objqcol1,
                      int objqcol2)
```
Convenience wrapper for getQObj(int,int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

objqcol1 - Column index for the first variable in the quadratic term.

objqcol2 - Column index for the second variable in the quadratic term.

Returns:

The value that the wrapped function would return in p_objqcoef.

getDirs
```
public void getDirs(IntHolder p_ndir,
                    int[] indices,
                    int[] prios,
                    byte[] branchdirs,
                    double[] uppseudo,
                    double[] downpseudo)
             throws XPRSprobException
```
Used to return the directives that have been loaded into a matrix. Priorities, forced branching directions and pseudo costs can be returned. If called after presolve, getDirs will get the directives for the presolved problem.
Parameters:

p_ndir - Pointer to an integer where the number of directives will be returned.

indices - Integer array of length p_ndir containing the column numbers ( 0, 1, 2,...) or negative values corresponding to special ordered sets (the first set numbered -1, the second numbered -2,...). May be null if not required.

prios - Integer array of length p_ndir containing the priorities for the columns and sets, where columns/sets with smallest priority will be branched on first. May be null if not required.
branchdirs - Character array of length p_ndir specifying the branching direction for each column or set:
- U: the entity is to be forced up;
- D: the entity is to be forced down;
- N: not specified.
May be null if not required.
uppseudo - Double array of length p_ndir containing the up pseudo costs for the columns and sets. May be null if not required.

downpseudo - Double array of length p_ndir containing the down pseudo costs for the columns and sets. May be null if not required.

Throws:

XPRSprobException

getDirs
```
public int getDirs(int[] indices,
                   int[] prios,
                   byte[] branchdirs,
                   double[] uppseudo,
                   double[] downpseudo)
            throws XPRSprobException
```
Convenience wrapper for getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[]).

Returns:

The value that would be returned by getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[]) as output parameter.

Throws:

XPRSprobException

See Also:

getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[])

getDirs
```
public int getDirs()
            throws XPRSprobException
```
Convenience wrapper for getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[]).

Returns:

The value that would be returned by getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[]) as output parameter.

Throws:

XPRSprobException

See Also:

getDirs(com.dashoptimization.IntHolder, int[], int[], byte[], double[], double[])

getScale
```
public void getScale(int[] rowscale,
                     int[] colscale)
              throws XPRSprobException
```
Returns the the current scaling of the matrix.

Parameters:

rowscale - Integer array of size ROWS that will contain the powers of 2 with which the rows are currently scaled.

colscale - Integer array of size COLS that will contain the powers of 2 with which the columns are currently scaled.

Throws:

XPRSprobException

getPivotOrder
```
public void getPivotOrder(int[] pivotorder)
                   throws XPRSprobException
```
Returns the pivot order of the basic variables.
Examples using getPivotOrder:
- Tableau.java
Parameters:

pivotorder - Integer array of length ROWS where the pivot order will be returned.

Throws:

XPRSprobException

getPresolveMap
```
public void getPresolveMap(int[] rowmap,
                           int[] colmap)
                    throws XPRSprobException
```
Returns the mapping of the row and column numbers from the presolve problem back to the original problem.

Parameters:

rowmap - Integer array of length ROWS where the row maps will be returned.

colmap - Integer array of length COLS where the column maps will be returned.

Throws:

XPRSprobException

btran
```
public void btran(double[] vec)
           throws XPRSprobException
```
Post-multiplies a (row) vector provided by the user by the inverse of the current basis.
Examples using btran:
- Tableau.java
Parameters:

vec - Double array of length ROWS containing the values by which the basis inverse is to be multiplied. The transformed values will also be returned in this array.

Throws:

XPRSprobException

ftran
```
public void ftran(double[] vec)
           throws XPRSprobException
```
Pre-multiplies a (column) vector provided by the user by the inverse of the current matrix.

Parameters:

vec - Double array of length ROWS containing the values which are to be multiplied by the basis inverse. The transformed values appear in the array.

Throws:

XPRSprobException

sparseBTran
```
public void sparseBTran(double[] val,
                        int[] ind,
                        IntHolder p_ncoefs)
                 throws XPRSprobException
```
Post-multiplies a (row) vector provided by the user by the inverse of the current matrix. Sparse version of bTran.

Parameters:

val - Double array of length ROWS containing the values which are to be post-multiplied by the basis inverse. The transformed values are returned in this array.

ind - Integer array of indices identifying the non-zero entries of val. The indices of the non-zero entries of the transformed vector in val will be returned here. This array must be allocated to hold at least ROWS indices.

p_ncoefs - Memory location where the number of non-zero entries is given. The number of non-zero entries of the transformed vector will be returned here.

Throws:

XPRSprobException

sparseFTran
```
public void sparseFTran(double[] val,
                        int[] ind,
                        IntHolder p_ncoefs)
                 throws XPRSprobException
```
Pre-multiplies a (column) vector provided by the user by the inverse of the current matrix. Sparse version of fTran.

Parameters:

val - Double array of length ROWS containing the values which are to be multiplied by the basis inverse. The transformed values are returned in this array.

ind - Integer array of indices identifying the non-zero entries of val. The indices of the non-zero entries of the transformed vector in val will be returned here. This array must be allocated to hold at least ROWS indices.

p_ncoefs - Memory location where the number of non-zero entries is given. The number of non-zero entries of the transformed vector will be returned here.

Throws:

XPRSprobException

getObj
```
public void getObj(double[] objcoef,
                   int first,
                   int last)
            throws XPRSprobException
```
Returns the objective function coefficients for the columns in a given range.
Examples using getObj:
- Knapsack.java
Parameters:

objcoef - Double array of length last-first+1 where the objective function coefficients are to be placed.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getObj
```
public double getObj(int x)
              throws XPRSprobException
```
Convenience wrapper for getObj(double[], int, int). This overload retrieves and returns the information for only a single element instead of an array.
Examples using getObj:
- Knapsack.java
Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getObj(double[],int,int)

getObj
```
public double[] getObj(int first,
                       int last)
                throws XPRSprobException
```
Convenience wrapper for getObj(double[], int, int). This overload retrieves and returns the same information but allocates the required array for you.
Examples using getObj:
- Knapsack.java
Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getObj(double[],int,int)

getObjN
```
public void getObjN(int objidx,
                    double[] objcoef,
                    int first,
                    int last)
             throws XPRSprobException
```
For a given objective function, returns the objective coefficients for the columns in a given range.

Parameters:

objidx - Index of the objective function whose coefficients to return.

objcoef - Double array of length last-first+1 where the objective function coefficients are to be placed.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getRHS
```
public void getRHS(double[] rhs,
                   int first,
                   int last)
            throws XPRSprobException
```
Returns the right hand side elements for the rows in a given range.
Examples using getRHS:
- Repair.java
Parameters:

rhs - Double array of length last-first+1 where the right hand side elements are to be placed.

first - First row in the range.

last - Last row in the range.

Throws:

XPRSprobException

getRHS
```
public double getRHS(int x)
              throws XPRSprobException
```
Convenience wrapper for getRHS(double[], int, int). This overload retrieves and returns the information for only a single element instead of an array.
Examples using getRHS:
- Repair.java
Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRHS(double[],int,int)

getRHS
```
public double[] getRHS(int first,
                       int last)
                throws XPRSprobException
```
Convenience wrapper for getRHS(double[], int, int). This overload retrieves and returns the same information but allocates the required array for you.
Examples using getRHS:
- Repair.java
Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRHS(double[],int,int)

getRHSrange
```
public void getRHSrange(double[] rng,
                        int first,
                        int last)
                 throws XPRSprobException
```
Returns the right hand side range values for the rows in a given range.
Examples using getRHSrange:
- Repair.java
Parameters:

rng - Double array of length last-first+1 where the right hand side range values are to be placed.

first - First row in the range.

last - Last row in the range.

Throws:

XPRSprobException

getRHSrange
```
public double getRHSrange(int x)
                   throws XPRSprobException
```
Convenience wrapper for getRHSrange(double[], int, int). This overload retrieves and returns the information for only a single element instead of an array.
Examples using getRHSrange:
- Repair.java
Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRHSrange(double[],int,int)

getRHSrange
```
public double[] getRHSrange(int first,
                            int last)
                     throws XPRSprobException
```
Convenience wrapper for getRHSrange(double[], int, int). This overload retrieves and returns the same information but allocates the required array for you.
Examples using getRHSrange:
- Repair.java
Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRHSrange(double[],int,int)

getLB
```
public void getLB(double[] lb,
                  int first,
                  int last)
           throws XPRSprobException
```
Returns the lower bounds for the columns in a given range.
Examples using getLB:
- MultipleProblems.java
- Repair.java
Parameters:

lb - Double array of length last-first+1 where the lower bounds are to be placed.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getLB
```
public double getLB(int x)
             throws XPRSprobException
```
Convenience wrapper for getLB(double[], int, int). This overload retrieves and returns the information for only a single element instead of an array.
Examples using getLB:
- MultipleProblems.java
- Repair.java
Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getLB(double[],int,int)

getLB
```
public double[] getLB(int first,
                      int last)
               throws XPRSprobException
```
Convenience wrapper for getLB(double[], int, int). This overload retrieves and returns the same information but allocates the required array for you.
Examples using getLB:
- MultipleProblems.java
- Repair.java
Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getLB(double[],int,int)

getUB
```
public void getUB(double[] ub,
                  int first,
                  int last)
           throws XPRSprobException
```
Returns the upper bounds for the columns in a given range.
Examples using getUB:
- MultipleProblems.java
- Repair.java
Parameters:

ub - Double array of length last-first+1 where the upper bounds are to be placed.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getUB
```
public double getUB(int x)
             throws XPRSprobException
```
Convenience wrapper for getUB(double[], int, int). This overload retrieves and returns the information for only a single element instead of an array.
Examples using getUB:
- MultipleProblems.java
- Repair.java
Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getUB(double[],int,int)

getUB
```
public double[] getUB(int first,
                      int last)
               throws XPRSprobException
```
Convenience wrapper for getUB(double[], int, int). This overload retrieves and returns the same information but allocates the required array for you.
Examples using getUB:
- MultipleProblems.java
- Repair.java
Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getUB(double[],int,int)

getCols
```
public void getCols(int[] start,
                    int[] rowind,
                    double[] rowcoef,
                    int maxcoefs,
                    IntHolder p_ncoefs,
                    int first,
                    int last)
             throws XPRSprobException
```
Returns the nonzeros in the constraint matrix for the columns in a given range.
Examples using getCols:
Parameters:

start - Integer array which will be filled with the indices indicating the starting offsets in the rowind and rowcoef arrays for each requested column. It must be of length last-first+2. Column i starts at position start[i] in the rowind and rowcoef arrays, and has start[i+1]-start[i] elements in it. May be null if not required.

rowind - Integer array of length maxcoefs which will be filled with the row indices of the nonzero coefficents for each column. May be null if not required.

rowcoef - Double array of length maxcoefs which will be filled with the nonzero coefficient values. May be null if not required.

maxcoefs - The size of the rowind and rowcoef arrays. This is the maximum number of nonzero coefficients that the Optimizer is allowed to return.

p_ncoefs - Pointer to an integer where the number of nonzero coefficients in the selected columns will be returned. If p_ncoefs exceeds maxcoefs, only the maxcoefs first nonzero coefficients will be returned. May be null if not required.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getCols
```
public int getCols(int[] start,
                   int[] rowind,
                   double[] rowcoef,
                   int maxcoefs,
                   int first,
                   int last)
            throws XPRSprobException
```
Convenience wrapper for getCols(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int).

Returns:

The value that would be returned by getCols(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int) as output parameter.

Throws:

XPRSprobException

See Also:

getCols(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)

getCols
```
public void getCols(long[] start,
                    int[] rowind,
                    double[] rowcoef,
                    long maxcoefs,
                    LongHolder p_ncoefs,
                    int first,
                    int last)
             throws XPRSprobException
```
Returns the nonzeros in the constraint matrix for the columns in a given range.
Examples using getCols:
Parameters:

start - Integer array which will be filled with the indices indicating the starting offsets in the rowind and rowcoef arrays for each requested column. It must be of length last-first+2. Column i starts at position start[i] in the rowind and rowcoef arrays, and has start[i+1]-start[i] elements in it. May be null if not required.

rowind - Integer array of length maxcoefs which will be filled with the row indices of the nonzero coefficents for each column. May be null if not required.

rowcoef - Double array of length maxcoefs which will be filled with the nonzero coefficient values. May be null if not required.

maxcoefs - The size of the rowind and rowcoef arrays. This is the maximum number of nonzero coefficients that the Optimizer is allowed to return.

p_ncoefs - Pointer to an integer where the number of nonzero coefficients in the selected columns will be returned. If p_ncoefs exceeds maxcoefs, only the maxcoefs first nonzero coefficients will be returned. May be null if not required.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getCols
```
public long getCols(long[] start,
                    int[] rowind,
                    double[] rowcoef,
                    long maxcoefs,
                    int first,
                    int last)
             throws XPRSprobException
```
Convenience wrapper for getCols(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int).

Returns:

The value that would be returned by getCols(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int) as output parameter.

Throws:

XPRSprobException

See Also:

getCols(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int)

getRows
```
public void getRows(int[] start,
                    int[] colind,
                    double[] colcoef,
                    int maxcoefs,
                    IntHolder p_ncoefs,
                    int first,
                    int last)
             throws XPRSprobException
```
Returns the nonzeros in the constraint matrix for the rows in a given range.
Examples using getRows:
Parameters:

start - Integer array which will be filled with the indices indicating the starting offsets in the colind and colcoef arrays for each requested row. It must be of length last-first+2. Row i starts at position start[i] in the colind and colcoef arrays, and has start[i+1]-start[i] elements in it. May be null if not required.

colind - Integer array of length maxcoefs which will be filled with the column indices of the nonzero elements for each row. May be null if not required.

colcoef - Double array of length maxcoefs which will be filled with the nonzero element values. May be null if not required.

maxcoefs - Maximum number of elements to be retrieved.

p_ncoefs - Pointer to the integer where the number of nonzero elements in the selected rows will be returned. If the number of nonzero elements is greater than maxcoefs, then only maxcoefs elements will be returned. If p_ncoefs is smaller than maxcoefs, then only p_ncoefs will be returned. May be null if not required.

first - First row in the range.

last - Last row in the range.

Throws:

XPRSprobException

getRows
```
public int getRows(int[] start,
                   int[] colind,
                   double[] colcoef,
                   int maxcoefs,
                   int first,
                   int last)
            throws XPRSprobException
```
Convenience wrapper for getRows(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int).

Returns:

The value that would be returned by getRows(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int) as output parameter.

Throws:

XPRSprobException

See Also:

getRows(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)

getRows
```
public void getRows(long[] start,
                    int[] colind,
                    double[] colcoef,
                    long maxcoefs,
                    LongHolder p_ncoefs,
                    int first,
                    int last)
             throws XPRSprobException
```
Returns the nonzeros in the constraint matrix for the rows in a given range.
Examples using getRows:
Parameters:

start - Integer array which will be filled with the indices indicating the starting offsets in the colind and colcoef arrays for each requested row. It must be of length last-first+2. Row i starts at position start[i] in the colind and colcoef arrays, and has start[i+1]-start[i] elements in it. May be null if not required.

colind - Integer array of length maxcoefs which will be filled with the column indices of the nonzero elements for each row. May be null if not required.

colcoef - Double array of length maxcoefs which will be filled with the nonzero element values. May be null if not required.

maxcoefs - Maximum number of elements to be retrieved.

p_ncoefs - Pointer to the integer where the number of nonzero elements in the selected rows will be returned. If the number of nonzero elements is greater than maxcoefs, then only maxcoefs elements will be returned. If p_ncoefs is smaller than maxcoefs, then only p_ncoefs will be returned. May be null if not required.

first - First row in the range.

last - Last row in the range.

Throws:

XPRSprobException

getRows
```
public long getRows(long[] start,
                    int[] colind,
                    double[] colcoef,
                    long maxcoefs,
                    int first,
                    int last)
             throws XPRSprobException
```
Convenience wrapper for getRows(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int).

Returns:

The value that would be returned by getRows(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int) as output parameter.

Throws:

XPRSprobException

See Also:

getRows(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int)

getMIPEntities
```
public void getMIPEntities(IntHolder p_nentities,
                           IntHolder p_nsets,
                           byte[] coltype,
                           int[] colind,
                           double[] limit,
                           byte[] settype,
                           int[] start,
                           int[] setcols,
                           double[] refval)
                    throws XPRSprobException
```
Retrieves integr and entity information about a problem. It must be called before mipOptimize if the presolve option is used.
Parameters:

p_nentities - Pointer to the integer where the number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities will be returned. This is equal to the problem attribute MIPENTS. May be null.

p_nsets - Pointer to the integer where the number of SOS1 and SOS2 sets will be returned. It can be retrieved from the problem attribute SETS. May be null.
coltype - Character array of length MIPENTS where the entity types will be returned. The types will be one of:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integer variables.
May be null if not required.
colind - Integer array of length MIPENTS where the column indices of the MIP entities will be returned. May be null if not required.

limit - Double array of length MIPENTS where the limits for the partial integer variables and lower bounds for the semi-continuous and semi-continuous integer variables will be returned (any entries in the positions corresponding to binary and integer variables will be meaningless). May be null if not required.
settype - Character array of length SETS where the set types will be returned. The set types will be one of:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
start - Integer array where the offsets into the setcols and refval arrays indicating the start of each set will be returned. This array must be of length SETS+1, the last element will contain the offset where set SETS+1 would start, and equals the length of the setcols and refval arrays, SETMEMBERS.

setcols - Integer array of length SETMEMBERS where the columns in each set will be returned.

refval - Double array of length SETMEMBERS where the reference row entries for each member of the sets will be returned. These define the order for SOS2 constraints and may be used in branching for both types.

Throws:

XPRSprobException

getMIPEntities
```
public void getMIPEntities(IntHolder p_nentities,
                           byte[] coltype,
                           int[] colind,
                           double[] limit)
                    throws XPRSprobException
```
Convenience wrapper for getMIPEntities(com.dashoptimization.IntHolder, com.dashoptimization.IntHolder, byte[], int[], double[], byte[], int[], int[], double[]).

Throws:

XPRSprobException

See Also:

getMIPEntities(com.dashoptimization.IntHolder, com.dashoptimization.IntHolder, byte[], int[], double[], byte[], int[], int[], double[])

getMIPEntities
```
public int getMIPEntities(byte[] coltype,
                          int[] colind,
                          double[] limit)
                   throws XPRSprobException
```
Convenience wrapper for getMIPEntities(com.dashoptimization.IntHolder, com.dashoptimization.IntHolder, byte[], int[], double[], byte[], int[], int[], double[]).

Returns:

The value that would be returned by getMIPEntities(com.dashoptimization.IntHolder, com.dashoptimization.IntHolder, byte[], int[], double[], byte[], int[], int[], double[]) as output parameter.

Throws:

XPRSprobException

See Also:

getMIPEntities(com.dashoptimization.IntHolder, com.dashoptimization.IntHolder, byte[], int[], double[], byte[], int[], int[], double[])

getMIPEntities
```
public void getMIPEntities(IntHolder p_nentities,
                           IntHolder p_nsets,
                           byte[] coltype,
                           int[] colind,
                           double[] limit,
                           byte[] settype,
                           long[] start,
                           int[] setcols,
                           double[] refval)
                    throws XPRSprobException
```
Retrieves integr and entity information about a problem. It must be called before mipOptimize if the presolve option is used.
Parameters:

p_nentities - Pointer to the integer where the number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities will be returned. This is equal to the problem attribute MIPENTS. May be null.

p_nsets - Pointer to the integer where the number of SOS1 and SOS2 sets will be returned. It can be retrieved from the problem attribute SETS. May be null.
coltype - Character array of length MIPENTS where the entity types will be returned. The types will be one of:
- B: binary variables;
- I: integer variables;
- P: partial integer variables;
- S: semi-continuous variables;
- R: semi-continuous integer variables.
May be null if not required.
colind - Integer array of length MIPENTS where the column indices of the MIP entities will be returned. May be null if not required.

limit - Double array of length MIPENTS where the limits for the partial integer variables and lower bounds for the semi-continuous and semi-continuous integer variables will be returned (any entries in the positions corresponding to binary and integer variables will be meaningless). May be null if not required.
settype - Character array of length SETS where the set types will be returned. The set types will be one of:
- 1: SOS1 type sets;
- 2: SOS2 type sets.
May be null if not required.
start - Integer array where the offsets into the setcols and refval arrays indicating the start of each set will be returned. This array must be of length SETS+1, the last element will contain the offset where set SETS+1 would start, and equals the length of the setcols and refval arrays, SETMEMBERS.

setcols - Integer array of length SETMEMBERS where the columns in each set will be returned.

refval - Double array of length SETMEMBERS where the reference row entries for each member of the sets will be returned. These define the order for SOS2 constraints and may be used in branching for both types.

Throws:

XPRSprobException

getRowFlags
```
public void getRowFlags(int[] flags,
                        int first,
                        int last)
                 throws XPRSprobException
```
Retrieve if a range of rows have been set up as special rows.

Parameters:

flags - Integer array of length last-first+1 where type of information (see below) will be returned

first - First row index to be checked

last - Last row index to be checked

Throws:

XPRSprobException

getRowFlags
```
public int getRowFlags(int x)
                throws XPRSprobException
```
Convenience wrapper for getRowFlags(int[], int, int). This overload retrieves and returns the information for only a single element instead of an array.

Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRowFlags(int[],int,int)

getRowFlags
```
public int[] getRowFlags(int first,
                         int last)
                  throws XPRSprobException
```
Convenience wrapper for getRowFlags(int[], int, int). This overload retrieves and returns the same information but allocates the required array for you.

Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRowFlags(int[],int,int)

clearRowFlags
```
public void clearRowFlags(int[] flags,
                          int first,
                          int last)
                   throws XPRSprobException
```
Clears extra information attached to a range of rows.

Parameters:

flags - Integer array of length last-first+1 including type of extra information to remove (see below)

first - First row index to be checked

last - Last row index to be checked

Throws:

XPRSprobException

getCoef
```
public void getCoef(int row,
                    int col,
                    DoubleHolder p_coef)
             throws XPRSprobException
```
Returns a single coefficient in the constraint matrix.

Parameters:

row - Row of the constraint matrix.

col - Column of the constraint matrix.

p_coef - Pointer to a double where the coefficient will be returned.

Throws:

XPRSprobException

getCoef
```
public double getCoef(int row,
                      int col)
```
Convenience wrapper for getCoef(int,int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

row - Row of the constraint matrix.

col - Column of the constraint matrix.

Returns:

The value that the wrapped function would return in p_coef.

getMQObj
```
public void getMQObj(int[] start,
                     int[] colind,
                     double[] objqcoef,
                     int maxcoefs,
                     IntHolder p_ncoefs,
                     int first,
                     int last)
              throws XPRSprobException
```
Returns the nonzeros in the quadratic objective coefficients matrix for the columns in a given range. To achieve maximum efficiency, getMQObj returns the lower triangular part of this matrix only.

Parameters:

start - Integer array of length last-first+2 which will be filled with indices indicating the starting offsets in the colind and objqcoef arrays for each requested column. Column i starts at position start[i] in the colind and objqcoef arrays, and has start[i+1]-start[i] elements in it. May be null if maxcoefs is 0.

colind - Integer array of length maxcoefs which will be filled with the column indices of the nonzero elements in the lower triangular part of Q. May be null if maxcoefs is 0.

objqcoef - Double array of length maxcoefs which will be filled with the nonzero element values. May be null if maxcoefs is 0.

maxcoefs - The maximum number of elements to be returned (size of the arrays).

p_ncoefs - Pointer to an integer where the number of nonzero quadratic objective coefficients will be returned. If the number of nonzero coefficients is greater than maxcoefs, then only maxcoefs elements will be returned. If p_ncoefs is smaller than maxcoefs, then only p_ncoefs will be returned. May be null.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getMQObj
```
public int getMQObj(int[] start,
                    int[] colind,
                    double[] objqcoef,
                    int maxcoefs,
                    int first,
                    int last)
             throws XPRSprobException
```
Convenience wrapper for getMQObj(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int).

Returns:

The value that would be returned by getMQObj(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int) as output parameter.

Throws:

XPRSprobException

See Also:

getMQObj(int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)

getMQObj
```
public void getMQObj(long[] start,
                     int[] colind,
                     double[] objqcoef,
                     long maxcoefs,
                     LongHolder p_ncoefs,
                     int first,
                     int last)
              throws XPRSprobException
```
Returns the nonzeros in the quadratic objective coefficients matrix for the columns in a given range. To achieve maximum efficiency, getMQObj returns the lower triangular part of this matrix only.

Parameters:

start - Integer array of length last-first+2 which will be filled with indices indicating the starting offsets in the colind and objqcoef arrays for each requested column. Column i starts at position start[i] in the colind and objqcoef arrays, and has start[i+1]-start[i] elements in it. May be null if maxcoefs is 0.

colind - Integer array of length maxcoefs which will be filled with the column indices of the nonzero elements in the lower triangular part of Q. May be null if maxcoefs is 0.

objqcoef - Double array of length maxcoefs which will be filled with the nonzero element values. May be null if maxcoefs is 0.

maxcoefs - The maximum number of elements to be returned (size of the arrays).

p_ncoefs - Pointer to an integer where the number of nonzero quadratic objective coefficients will be returned. If the number of nonzero coefficients is greater than maxcoefs, then only maxcoefs elements will be returned. If p_ncoefs is smaller than maxcoefs, then only p_ncoefs will be returned. May be null.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getMQObj
```
public long getMQObj(long[] start,
                     int[] colind,
                     double[] objqcoef,
                     long maxcoefs,
                     int first,
                     int last)
              throws XPRSprobException
```
Convenience wrapper for getMQObj(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int).

Returns:

The value that would be returned by getMQObj(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int) as output parameter.

Throws:

XPRSprobException

See Also:

getMQObj(long[], int[], double[], long, com.dashoptimization.LongHolder, int, int)

writeBasis
```
public void writeBasis(java.lang.String filename,
                       java.lang.String flags)
                throws XPRSprobException
```
Writes the current basis to a file for later input into the Optimizer.
Examples using writeBasis:
- AddMipSol.java
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name from which the basis is to be written. If omitted, the default problem_name is used with a .bss extension.
flags - Flags to pass to writeBasis ( WRITEBASIS):
- i: output the internal presolved basis;
- t: output a compact advanced form of the basis;
- n: output basis file containing current solution values;
- h: output values in single precision;
- p: output values in full precision (obsolete as this is now default behavior);
- v: use the provided filename verbatim, without appending the .bss extension;
- z: compress the output file.
Throws:

XPRSprobException

writeBasis
```
public void writeBasis(java.lang.String filename)
                throws XPRSprobException
```
Convenience wrapper for writeBasis(String, String).

Throws:

XPRSprobException

See Also:

writeBasis(String, String)

writeBasis
```
public void writeBasis()
                throws XPRSprobException
```
Convenience wrapper for writeBasis(String, String).

Throws:

XPRSprobException

See Also:

writeBasis(String, String)

writeSol
```
public void writeSol(java.lang.String filename,
                     java.lang.String flags)
              throws XPRSprobException
```
Writes the current solution to a CSV format ASCII file, problem_name .asc (and .hdr).
Examples using writeSol:
- Trimloss.java
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name to which the solution is to be written. If omitted, the default problem_name will be used. The extensions .hdr and .asc will be appended.
flags - Flags to control which optional fields are output:
- s: sequence number;
- n: name;
- t: type;
- b: basis status;
- a: activity;
- c: cost (columns), slack (rows);
- l: lower bound;
- u: upper bound;
- d: dj (column; reduced costs), dual value (rows; shadow prices);
- r: right hand side (rows).
If no flags are specified, all fields are output.
Additional flags:
- p: outputs in full precision;
- q: only outputs vectors with nonzero optimum value;
- x: output the current LP solution instead of the MIP solution;
- z: compress the output file.
Throws:

XPRSprobException

writeSol
```
public void writeSol(java.lang.String filename)
              throws XPRSprobException
```
Convenience wrapper for writeSol(String, String).

Throws:

XPRSprobException

See Also:

writeSol(String, String)

writeSol
```
public void writeSol()
              throws XPRSprobException
```
Convenience wrapper for writeSol(String, String).

Throws:

XPRSprobException

See Also:

writeSol(String, String)

writeBinSol
```
public void writeBinSol(java.lang.String filename,
                        java.lang.String flags)
                 throws XPRSprobException
```
Writes the current MIP or LP solution to a binary solution file for later input into the Optimizer.
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name to which the solution is to be written. If omitted, the default problem_name is used with a .sol extension.
flags - Flags to pass to writeBinSol ( WRITEBINSOL):
- m: output the MIP solution;
- x: output the LP solution;
- v: use the provided filename verbatim, without appending the .sol extension;
- z: compress the output file.
Throws:

XPRSprobException

writeBinSol
```
public void writeBinSol(java.lang.String filename)
                 throws XPRSprobException
```
Convenience wrapper for writeBinSol(String, String).

Throws:

XPRSprobException

See Also:

writeBinSol(String, String)

writeBinSol
```
public void writeBinSol()
                 throws XPRSprobException
```
Convenience wrapper for writeBinSol(String, String).

Throws:

XPRSprobException

See Also:

writeBinSol(String, String)

getSol

@Deprecated
public void getSol(double[] x,
                   double[] slack,
                   double[] duals,
                   double[] djs)
            throws XPRSprobException

Deprecated.

since 41.00.

Throws:: XPRSprobException

getSol
```
@Deprecated
public void getSol(double[] x)
            throws XPRSprobException
```
Deprecated.
since 41.00.

Convenience wrapper for getSol(double[], double[], double[], double[]).

Throws:

XPRSprobException

See Also:

getSol(double[], double[], double[], double[])

writePrtSol
```
public void writePrtSol(java.lang.String filename,
                        java.lang.String flags)
                 throws XPRSprobException
```
Writes the current solution to a fixed format ASCII file, problem_name .prt.
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name to which the solution is to be written. If omitted, the default problem_name will be used. The extension .prt will be appended.
flags - Flags for writePrtSol ( WRITEPRTSOL) are:
- x: write the LP solution instead of the current MIP solution;
- v: use the provided filename verbatim, without appending the .prt extension;
- z: write a compressed output file;
- s: include classical sensitivity analysis.
Throws:

XPRSprobException

writePrtSol
```
public void writePrtSol(java.lang.String filename)
                 throws XPRSprobException
```
Convenience wrapper for writePrtSol(String, String).

Throws:

XPRSprobException

See Also:

writePrtSol(String, String)

writePrtSol
```
public void writePrtSol()
                 throws XPRSprobException
```
Convenience wrapper for writePrtSol(String, String).

Throws:

XPRSprobException

See Also:

writePrtSol(String, String)

writeSlxSol
```
public void writeSlxSol(java.lang.String filename,
                        java.lang.String flags)
                 throws XPRSprobException
```
Creates an ASCII solution file ( .slx) using a similar format to MPS files. These files can be read back into the Optimizer using the readSlxSol function.
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters containing the file name to which the solution is to be written. If omitted, the default problem_name is used with a .slx extension.
flags - Flags to pass to writeSlxSol ( WRITESLXSOL):
- l: write the LP solution in case of a MIP problem;
- m: write the MIP solution;
- p: use full precision for numerical values (obsolete as this is now default behavior);
- s: including slack variables;
- d: LP solution only: including dual variables;
- r: LP solution only: including reduced cost;
- v: use the provided filename verbatim, without appending the .slx extension;
- z: compress the output file.
Throws:

XPRSprobException

writeSlxSol
```
public void writeSlxSol(java.lang.String filename)
                 throws XPRSprobException
```
Convenience wrapper for writeSlxSol(String, String).

Throws:

XPRSprobException

See Also:

writeSlxSol(String, String)

writeSlxSol
```
public void writeSlxSol()
                 throws XPRSprobException
```
Convenience wrapper for writeSlxSol(String, String).

Throws:

XPRSprobException

See Also:

writeSlxSol(String, String)

getPrimalRay
```
public void getPrimalRay(double[] ray,
                         IntHolder p_hasray)
                  throws XPRSprobException
```
Retrieves a primal ray (primal unbounded direction) for the current problem, if the problem is found to be unbounded.

Parameters:

ray - Double array of length COLS to hold the ray. May be null if not required.

p_hasray - This variable will be set to 1 if the Optimizer is able to return a primal ray, 0 otherwise.

Throws:

XPRSprobException

getDualRay
```
public void getDualRay(double[] ray,
                       IntHolder p_hasray)
                throws XPRSprobException
```
Retrieves a dual ray (dual unbounded direction) for the current problem, if the problem is found to be infeasible.

Parameters:

ray - Double array of length ROWS to hold the ray. May be null if not required.

p_hasray - This variable will be set to 1 if the Optimizer is able to return a dual ray, 0 otherwise.

Throws:

XPRSprobException

strongBranchCB
```
public void strongBranchCB(int nbounds,
                           int[] colind,
                           byte[] bndtype,
                           double[] bndval,
                           int iterlim,
                           double[] objval,
                           int[] status,
                           XPRSstrongBranchSolveListener callback,
                           java.lang.Object data)
                    throws XPRSprobException
```
Performs strong branching iterations on all specified bound changes. For each candidate bound change, strongBranchCB performs dual simplex iterations starting from the current optimal solution of the base LP, and returns both the status and objective value reached after these iterations.
Parameters:

nbounds - Number of bound changes to try.

colind - Integer array of size nbounds containing the indices of the columns on which the bounds will change.
bndtype - Character array of length nbounds indicating the type of bound to change:
- U: indicates change the upper bound;
- L: indicates change the lower bound;
- B: indicates change both bounds, i.e. fix the column.
bndval - Double array of length nbounds giving the new bound values.

iterlim - Maximum number of LP iterations to perform for each bound change.

objval - Array of objective values of each LP after performing the strong branching iterations.

status - Array of statuses of each LP after performing the strong branching iterations, as detailed for the LPSTATUS attribute.

callback - Function to be called after each strong branch has been reoptimized. This function returns an integer. Use 0 to indicate that everything went fine. Use a return value different from 0 to signal an error. This will terminate the function.

data - User context to be provided for callback.

Throws:

XPRSprobException

loadMipSol
```
public void loadMipSol(double[] x,
                       IntHolder p_status)
                throws XPRSprobException
```
Loads a starting MIP solution for the problem into the Optimizer.
Parameters:

x - Double array of length COLS (for the original problem and not the presolve problem) containing the values of the variables.
p_status - Pointer to an int where the status will be returned. The status is one of:
- -1: Solution rejected because an error occurred;
- 0: Solution accepted.
Throws:

XPRSprobException

loadMipSol
```
public int loadMipSol(double[] x)
```
Convenience wrapper for loadMipSol(double[],com.dashoptimization.IntHolder) that returns the output argument.

Parameters:

x - Double array of length COLS (for the original problem and not the presolve problem) containing the values of the variables.

Returns:

The value that the wrapped function would return in p_status.

getBasis
```
public void getBasis(int[] rowstat,
                     int[] colstat)
              throws XPRSprobException
```
Returns the current basis into the user's data arrays.
Examples using getBasis:
Parameters:
rowstat - Integer array of length ORIGINALROWS to hold the basis status of the slack, surplus or artificial variable associated with each row. The status will be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): slack, surplus or artificial is non-basic at lower bound;
- XPRS_BASISSTATUS_BASIC (1): slack, surplus or artificial is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): slack or surplus is non-basic at upper bound.
- XPRS_BASISSTATUS_SUPERBASIC (3): slack or surplus is super-basic.
May be null if not required.
colstat - Integer array of length ORIGINALCOLS to hold the basis status of the columns in the constraint matrix. The status will be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): variable is non-basic at lower bound, or superbasic at zero if the variable has no lower bound;
- XPRS_BASISSTATUS_BASIC (1): variable is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): variable is non-basic at upper bound;
- XPRS_BASISSTATUS_SUPERBASIC (3): variable is super-basic.
May be null if not required.
Throws:

XPRSprobException

getBasisVal
```
public void getBasisVal(int row,
                        int col,
                        IntHolder p_rowstat,
                        IntHolder p_colstat)
                 throws XPRSprobException
```
Returns the current basis status for a specific column or row.

Parameters:

row - Row index to get the row basis status for.

col - Column index to get the column basis status for.

p_rowstat - Integer pointer where the value of the row basis status will be returned. May be null if not required.

p_colstat - Integer pointer where the value of the column basis status will be returned. May be null if not required.

Throws:

XPRSprobException

addManagedCuts
```
public void addManagedCuts(int globalvalid,
                           int ncuts,
                           byte[] rowtype,
                           double[] rhs,
                           int[] start,
                           int[] colind,
                           double[] cutcoef)
                    throws XPRSprobException
```
Adds cuts to the Optimizer's internal cut pool from within the cutround callback set by addCbCutRound. The cuts will be added to an internal pool of cuts managed by the Optimizer. The Optimizer will use internal priorities to dynamically load violated cuts from this pool into branch-and-bound node problems and remove inactive cuts. Cuts can be either local or global. Cuts flagged as local are assumed to be valid only for the the current node of the branch-and-bound search or any of its descendants. Global cuts are assumed to be valid for the whole problem and might be used on any node of the branch-and-bound search tree. The cuts should be formulated in the original space of variables and will automatically be presolved.
Parameters:

globalvalid - Nonzero if the cuts should be assumed to be valid for the whole problem. If zero, cuts will be assumed to be valid only for the current node and its descendants.

ncuts - Number of cuts to add.
rowtype - Character array of length ncuts containing the row types:
- L: indicates a <= row;
- G: indicates a >= row;
- E: indicates an = row.
rhs - Double array of length ncuts containing the right hand side elements for the cuts.

start - Integer array containing offset into the colind and cutcoef arrays indicating the start of each cut. This array has one entry for each cut, plus one more entry indicating where an additional cut would start, if it were present.

colind - Integer array of length start[ncuts] containing the column indices in the cuts.

cutcoef - Double array of length start[ncuts] containing the matrix values for the cuts.

Throws:

XPRSprobException

addManagedCuts
```
public void addManagedCuts(int globalvalid,
                           int ncuts,
                           byte[] rowtype,
                           double[] rhs,
                           long[] start,
                           int[] colind,
                           double[] cutcoef)
                    throws XPRSprobException
```
Adds cuts to the Optimizer's internal cut pool from within the cutround callback set by addCbCutRound. The cuts will be added to an internal pool of cuts managed by the Optimizer. The Optimizer will use internal priorities to dynamically load violated cuts from this pool into branch-and-bound node problems and remove inactive cuts. Cuts can be either local or global. Cuts flagged as local are assumed to be valid only for the the current node of the branch-and-bound search or any of its descendants. Global cuts are assumed to be valid for the whole problem and might be used on any node of the branch-and-bound search tree. The cuts should be formulated in the original space of variables and will automatically be presolved.
Parameters:

globalvalid - Nonzero if the cuts should be assumed to be valid for the whole problem. If zero, cuts will be assumed to be valid only for the current node and its descendants.

ncuts - Number of cuts to add.
rowtype - Character array of length ncuts containing the row types:
- L: indicates a <= row;
- G: indicates a >= row;
- E: indicates an = row.
rhs - Double array of length ncuts containing the right hand side elements for the cuts.

start - Integer array containing offset into the colind and cutcoef arrays indicating the start of each cut. This array has one entry for each cut, plus one more entry indicating where an additional cut would start, if it were present.

colind - Integer array of length start[ncuts] containing the column indices in the cuts.

cutcoef - Double array of length start[ncuts] containing the matrix values for the cuts.

Throws:

XPRSprobException

addCuts
```
public void addCuts(int ncuts,
                    int[] cuttype,
                    byte[] rowtype,
                    double[] rhs,
                    int[] start,
                    int[] colind,
                    double[] cutcoef)
             throws XPRSprobException
```
Adds cuts directly to the matrix at the current node. The cuts will automatically be added to the cut pool. Cuts added to a node will automatically be inherited on any descendant node, unless explicitly deleted with a call to delCuts.
Parameters:

ncuts - Number of cuts to add.

cuttype - Integer array of length ncuts containing the user assigned cut types. The cut types can be any integer chosen by the user, and are used to identify the cuts in other cut manager routines using user supplied parameters. The cut type can be interpreted as an integer or a bitmap - see delCuts.
rowtype - Character array of length ncuts containing the row types:
- L: indicates a <= row;
- G: indicates a >= row;
- E: indicates an = row.
rhs - Double array of length ncuts containing the right hand side elements for the cuts.

start - Integer array containing offset into the colind and cutcoef arrays indicating the start of each cut. This array has one entry for each cut, plus one more entry indicating where an additional cut would start, if it were present.

colind - Integer array of length start[ncuts] containing the column indices in the cuts.

cutcoef - Double array of length start[ncuts] containing the matrix values for the cuts.

Throws:

XPRSprobException

addCuts
```
public void addCuts(int ncuts,
                    int[] cuttype,
                    byte[] rowtype,
                    double[] rhs,
                    long[] start,
                    int[] colind,
                    double[] cutcoef)
             throws XPRSprobException
```
Adds cuts directly to the matrix at the current node. The cuts will automatically be added to the cut pool. Cuts added to a node will automatically be inherited on any descendant node, unless explicitly deleted with a call to delCuts.
Parameters:

ncuts - Number of cuts to add.

cuttype - Integer array of length ncuts containing the user assigned cut types. The cut types can be any integer chosen by the user, and are used to identify the cuts in other cut manager routines using user supplied parameters. The cut type can be interpreted as an integer or a bitmap - see delCuts.
rowtype - Character array of length ncuts containing the row types:
- L: indicates a <= row;
- G: indicates a >= row;
- E: indicates an = row.
rhs - Double array of length ncuts containing the right hand side elements for the cuts.

start - Integer array containing offset into the colind and cutcoef arrays indicating the start of each cut. This array has one entry for each cut, plus one more entry indicating where an additional cut would start, if it were present.

colind - Integer array of length start[ncuts] containing the column indices in the cuts.

cutcoef - Double array of length start[ncuts] containing the matrix values for the cuts.

Throws:

XPRSprobException

delCuts
```
public void delCuts(int basis,
                    int cuttype,
                    int interp,
                    double delta,
                    int ncuts,
                    XPRScut[] cutind)
             throws XPRSprobException
```
Deletes cuts from the matrix at the current node. Cuts from the parent node which have been automatically restored may be deleted as well as cuts added to the current node using addCuts or loadCuts. The cuts to be deleted can be specified in a number of ways. If a cut is ruled out by any one of the criteria it will not be deleted.
Parameters:

basis - Ensures the basis will be valid if set to 1. If set to 0, cuts with non-basic slacks may be deleted.

cuttype - User defined type of the cut to be deleted.
interp - Way in which the cut cuttype is interpreted:
- -1: match all cut types;
- 1: treat cut types as numbers;
- 2: treat cut types as bit-vectors (compare Section ) - delete if any bit matches any bit set in cuttype;
- 3: treat cut types as bit-vectors (compare Section ) - delete if all bits match those set in cuttype.
delta - Only delete cuts with an absolute slack value greater than delta. To delete all the cuts, this argument should be set to XPRS_MINUSINFINITY.

ncuts - Number of cuts to drop if a list of cuts is provided. A value of -1 indicates all cuts.

cutind - Array of length ncuts containing pointers to the cuts which are to be deleted. This array may be null to delete all cuts, when ncuts should be -1.

Throws:

XPRSprobException

delCuts
```
public void delCuts(int basis)
             throws XPRSprobException
```
Convenience wrapper for delCuts(int, int, int, double, int, XPRScut[]).

Throws:

XPRSprobException

See Also:

delCuts(int, int, int, double, int, XPRScut[])

delCuts
```
public void delCuts(int basis,
                    int cuttype,
                    int interp)
             throws XPRSprobException
```
Convenience wrapper for delCuts(int, int, int, double, int, XPRScut[]).

Throws:

XPRSprobException

See Also:

delCuts(int, int, int, double, int, XPRScut[])

delCuts

public void delCuts(int basis,
                    int cuttype,
                    int interp,
                    double delta)
             throws XPRSprobException

Convenience wrapper for delCuts(int, int, int, double, int, XPRScut[]).

Throws:: XPRSprobException
See Also:: delCuts(int, int, int, double, int, XPRScut[])

delCuts

public void delCuts(int basis,
                    int ncuts,
                    XPRScut[] cutind)
             throws XPRSprobException

Convenience wrapper for delCuts(int, int, int, double, int, XPRScut[]).

Throws:: XPRSprobException
See Also:: delCuts(int, int, int, double, int, XPRScut[])

delCPCuts
```
public void delCPCuts(int cuttype,
                      int interp,
                      int ncuts,
                      XPRScut[] cutind)
               throws XPRSprobException
```
During the branch and bound search, cuts are stored in the cut pool to be applied at descendant nodes. These cuts may be removed from a given node using delCuts, but if this is to be applied in a large number of cases, it may be preferable to remove the cut completely from the cut pool. This is achieved using delCPCuts.
Parameters:

cuttype - User defined cut type to match against.
interp - Way in which the cut cuttype is interpreted:
- -1: match all cut types;
- 1: treat cut types as numbers;
- 2: treat cut types as bit-vectors (compare Section ) - delete if any bit matches any bit set in cuttype;
- 3: treat cut types as bit-vectors (compare Section ) - delete if all bits match those set in cuttype.
ncuts - The number of cuts to delete. A value of -1 indicates delete all cuts.

cutind - Array of length ncuts containing pointers to the cuts which are to be deleted. This array may be null to delete all cuts, when ncuts should be -1.

Throws:

XPRSprobException

delCPCuts
```
public void delCPCuts()
               throws XPRSprobException
```
Convenience wrapper for delCPCuts(int, int, int, XPRScut[]).

Throws:

XPRSprobException

See Also:

delCPCuts(int, int, int, XPRScut[])

delCPCuts
```
public void delCPCuts(int cuttype,
                      int interp)
               throws XPRSprobException
```
Convenience wrapper for delCPCuts(int, int, int, XPRScut[]).

Throws:

XPRSprobException

See Also:

delCPCuts(int, int, int, XPRScut[])

delCPCuts

public void delCPCuts(int ncuts,
                      XPRScut[] cutind)
               throws XPRSprobException

Convenience wrapper for delCPCuts(int, int, int, XPRScut[]).

Throws:: XPRSprobException
See Also:: delCPCuts(int, int, int, XPRScut[])

getCutList
```
public void getCutList(int cuttype,
                       int interp,
                       IntHolder p_ncuts,
                       int maxcuts,
                       XPRScut[] cutind)
                throws XPRSprobException
```
Retrieves a list of cut pointers for the cuts active at the current node.
Parameters:

cuttype - User defined type of the cuts to be returned. A value of -1 indicates return all active cuts.
interp - Way in which the cut type is interpreted:
- -1: get all cuts;
- 1: treat cut types as numbers;
- 2: treat cut types as bit-vectors (compare Section ) - get cut if any bit matches any bit set in cuttype;
- 3: treat cut types as bit-vectors (compare Section ) - get cut if all bits match those set in cuttype.
p_ncuts - Pointer to the integer where the number of active cuts of type cuttype will be returned.

maxcuts - Maximum number of cuts to be retrieved.

cutind - Array of length maxcuts where the pointers to the cuts will be returned. May be null if not required.

Throws:

XPRSprobException

getCutList
```
public int getCutList(int cuttype,
                      int interp,
                      int maxcuts,
                      XPRScut[] cutind)
               throws XPRSprobException
```
Convenience wrapper for getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[]).

Returns:

The value that would be returned by getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[]) as output parameter.

Throws:

XPRSprobException

See Also:

getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[])

getCutList
```
public int getCutList(int maxcuts,
                      XPRScut[] cutind)
               throws XPRSprobException
```
Convenience wrapper for getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[]).

Returns:

The value that would be returned by getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[]) as output parameter.

Throws:

XPRSprobException

See Also:

getCutList(int, int, com.dashoptimization.IntHolder, int, XPRScut[])

getCPCutList
```
public void getCPCutList(int cuttype,
                         int interp,
                         double delta,
                         IntHolder p_ncuts,
                         int maxcuts,
                         XPRScut[] cutind,
                         double[] viol)
                  throws XPRSprobException
```
Returns a list of cut indices from the cut pool.
Parameters:

cuttype - The user defined type of the cuts to be returned.
interp - Way in which the cut type is interpreted:
- -1: get all cuts;
- 1: treat cut types as numbers;
- 2: treat cut types as bit-vectors (compare Section ) - get cut if any bit matches any bit set in cuttype;
- 3: treat cut types as bit-vectors (compare Section ) - get cut if all bits match those set in cuttype.
delta - Only those cuts with a signed violation greater than delta will be returned.

p_ncuts - Pointer to the integer where the number of cuts of type cuttype in the cut pool will be returned.

maxcuts - Maximum number of cuts to be returned.

cutind - Array of length maxcuts where the pointers to the cuts will be returned. May be null if not required.

viol - Double array of length maxcuts where the values of the signed violations of the cuts will be returned. May be null if not required.

Throws:

XPRSprobException

getCPCutList
```
public int getCPCutList(int cuttype,
                        int interp,
                        double delta,
                        int maxcuts,
                        XPRScut[] cutind,
                        double[] viol)
                 throws XPRSprobException
```
Convenience wrapper for getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[]).

Returns:

The value that would be returned by getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[]) as output parameter.

Throws:

XPRSprobException

See Also:

getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[])

getCPCutList
```
public int getCPCutList(int maxcuts,
                        XPRScut[] cutind,
                        double[] viol)
                 throws XPRSprobException
```
Convenience wrapper for getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[]).

Returns:

The value that would be returned by getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[]) as output parameter.

Throws:

XPRSprobException

See Also:

getCPCutList(int, int, double, com.dashoptimization.IntHolder, int, XPRScut[], double[])

getCPCuts
```
public void getCPCuts(XPRScut[] rowind,
                      int ncuts,
                      int maxcoefs,
                      int[] cuttype,
                      byte[] rowtype,
                      int[] start,
                      int[] colind,
                      double[] cutcoef,
                      double[] rhs)
               throws XPRSprobException
```
Returns cuts from the cut pool.

Parameters:

rowind - Array of length ncuts containing the pointers to the cuts.

ncuts - Number of cuts to be returned.

maxcoefs - Maximum number of column indices of the cuts to be returned.

cuttype - Integer array of length ncuts where the cut types will be returned. May be null if not required.

rowtype - Character array of length ncuts where the sense of the cuts ( L, G, or E) will be returned. May be null if not required.

start - Integer array of length ncuts+1 containing the offsets into the colind and cutcoef arrays. The last element indicates where an additional cut would start, if it were present. May be null if not required.

colind - Integer array of length maxcoefs where the column indices of the cuts will be returned. May be null if not required.

cutcoef - Double array of length maxcoefs where the matrix values will be returned. May be null if not required.

rhs - Double array of length ncuts where the right hand side elements for the cuts will be returned. May be null if not required.

Throws:

XPRSprobException

getCPCuts
```
public void getCPCuts(XPRScut[] rowind,
                      int ncuts,
                      long maxcoefs,
                      int[] cuttype,
                      byte[] rowtype,
                      long[] start,
                      int[] colind,
                      double[] cutcoef,
                      double[] rhs)
               throws XPRSprobException
```
Returns cuts from the cut pool.

Parameters:

rowind - Array of length ncuts containing the pointers to the cuts.

ncuts - Number of cuts to be returned.

maxcoefs - Maximum number of column indices of the cuts to be returned.

cuttype - Integer array of length ncuts where the cut types will be returned. May be null if not required.

rowtype - Character array of length ncuts where the sense of the cuts ( L, G, or E) will be returned. May be null if not required.

start - Integer array of length ncuts+1 containing the offsets into the colind and cutcoef arrays. The last element indicates where an additional cut would start, if it were present. May be null if not required.

colind - Integer array of length maxcoefs where the column indices of the cuts will be returned. May be null if not required.

cutcoef - Double array of length maxcoefs where the matrix values will be returned. May be null if not required.

rhs - Double array of length ncuts where the right hand side elements for the cuts will be returned. May be null if not required.

Throws:

XPRSprobException

loadCuts
```
public void loadCuts(int cuttype,
                     int interp,
                     int ncuts,
                     XPRScut[] cutind)
              throws XPRSprobException
```
Loads cuts from the cut pool into the matrix. Without calling loadCuts the cuts will remain in the cut pool but will not be active at the node. Cuts loaded at a node remain active at all descendant nodes unless they are deleted using delCuts.
Parameters:

cuttype - Cut type.
interp - The way in which the cut type is interpreted:
- -1: load all cuts;
- 1: treat cut types as numbers;
- 2: treat cut types as bit-vectors (compare Section ) - load cut if any bit matches any bit set in cuttype;
- 3: treat cut types as bit-vectors (compare Section ) - 0 load cut if all bits match those set in cuttype.
ncuts - Number of cuts to load.

cutind - Array of length ncuts containing pointers to the cuts to be loaded into the matrix. These are pointers returned by either storeCuts or getCPCutList.

Throws:

XPRSprobException

loadCuts
```
public void loadCuts(int cuttype,
                     int interp)
              throws XPRSprobException
```
Convenience wrapper for loadCuts(int, int, int, XPRScut[]).

Throws:

XPRSprobException

See Also:

loadCuts(int, int, int, XPRScut[])

loadCuts

public void loadCuts(int ncuts,
                     XPRScut[] cutind)
              throws XPRSprobException

Convenience wrapper for loadCuts(int, int, int, XPRScut[]).

Throws:: XPRSprobException
See Also:: loadCuts(int, int, int, XPRScut[])

storeCuts
```
public void storeCuts(int ncuts,
                      int nodups,
                      int[] cuttype,
                      byte[] rowtype,
                      double[] rhs,
                      int[] start,
                      XPRScut[] cutind,
                      int[] colind,
                      double[] cutcoef)
               throws XPRSprobException
```
Stores cuts into the cut pool, but does not apply them to the current node. These cuts must be explicitly loaded into the matrix using loadCuts before they become active.
Parameters:

ncuts - Number of cuts to add.
nodups -
- 0: do not exclude duplicates from the cut pool;
- 1: duplicates are to be excluded from the cut pool;
- 2: duplicates are to be excluded from the cut pool, ignoring cut type.
cuttype - Integer array of length ncuts containing the cut types. The cut types can be any integer and are used to identify the cuts.
rowtype - Character array of length ncuts containing the row types:
- L: indicates a <= row;
- E: indicates an = row;
- G: indicates a >= row.
rhs - Double array of length ncuts containing the right hand side elements for the cuts.

start - Integer array containing offsets into the colind and dmtval arrays indicating the start of each cut. This array has an entry for each cut, plus one more entry indicating where an additional cut would start, if it were present.

cutind - Array of length ncuts where the pointers to the cuts will be returned.

colind - Integer array of length start[ncuts] containing the column indices in the cuts.

cutcoef - Double array of length start[ncuts] containing the matrix values for the cuts.

Throws:

XPRSprobException

storeCuts
```
public void storeCuts(int ncuts,
                      int nodups,
                      int[] cuttype,
                      byte[] rowtype,
                      double[] rhs,
                      long[] start,
                      XPRScut[] cutind,
                      int[] colind,
                      double[] cutcoef)
               throws XPRSprobException
```
Stores cuts into the cut pool, but does not apply them to the current node. These cuts must be explicitly loaded into the matrix using loadCuts before they become active.
Parameters:

ncuts - Number of cuts to add.
nodups -
- 0: do not exclude duplicates from the cut pool;
- 1: duplicates are to be excluded from the cut pool;
- 2: duplicates are to be excluded from the cut pool, ignoring cut type.
cuttype - Integer array of length ncuts containing the cut types. The cut types can be any integer and are used to identify the cuts.
rowtype - Character array of length ncuts containing the row types:
- L: indicates a <= row;
- E: indicates an = row;
- G: indicates a >= row.
rhs - Double array of length ncuts containing the right hand side elements for the cuts.

start - Integer array containing offsets into the colind and dmtval arrays indicating the start of each cut. This array has an entry for each cut, plus one more entry indicating where an additional cut would start, if it were present.

cutind - Array of length ncuts where the pointers to the cuts will be returned.

colind - Integer array of length start[ncuts] containing the column indices in the cuts.

cutcoef - Double array of length start[ncuts] containing the matrix values for the cuts.

Throws:

XPRSprobException

presolveRow
```
public void presolveRow(char rowtype,
                        int norigcoefs,
                        int[] origcolind,
                        double[] origrowcoef,
                        double origrhs,
                        int maxcoefs,
                        IntHolder p_ncoefs,
                        int[] colind,
                        double[] rowcoef,
                        DoubleHolder p_rhs,
                        IntHolder p_status)
                 throws XPRSprobException
```
Presolves a row formulated in terms of the original variables such that it can be added to a presolved matrix.
Examples using presolveRow:
- TSP.java
Parameters:
rowtype - The type of the row:
- L: indicates a <= row;
- G: indicates a >= row.
- E: indicates a >= row.
norigcoefs - Number of elements in the origcolind and origrowcoef arrays.

origcolind - Integer array of length norigcoefs containing the column indices of the row to presolve.

origrowcoef - Double array of length norigcoefs containing the non-zero coefficients of the row to presolve.

origrhs - The right-hand side constant of the row to presolve.

maxcoefs - Maximum number of elements to return in the colind and rowcoef arrays. The function will not write more elements than this to colind or rowcoef, even if the presolved row is longer.

p_ncoefs - Pointer to the integer where the number of non-zero elements in the presolved row will be returned (this may be bigger than maxcoefs).

colind - Integer array of length maxcoefs which will be filled with the column indices of the presolved row. May be null if not required. Allocate this to COLS elements and pass COLS as maxcoef> to make sure it is large enough to hold the presolved row.

rowcoef - Double array of length maxcoefs which will be filled with the coefficients of the presolved row. May be null if not required. Allocate this to COLS elements and pass COLS as maxcoef> to make sure it is large enough to hold the presolved row.

p_rhs - Pointer to the double where the presolved right-hand side will be returned.
p_status - Status of the presolved row:
- -5: Failed to presolve the row due to presolve operations making the row nonlinear;
- -4: Failed to presolve the equality row due to presolve operations requiring relaxation of the row;
- -3: Failed to presolve the row due to presolve dual reductions;
- -2: Failed to presolve the row due to presolve duplicate column reductions;
- -1: Failed to presolve the row due to an error. Check the Optimizer error code for the cause;
- 0: The row was successfully presolved;
- 1: The row was presolved, but may be relaxed.
May be null if not required.
Throws:

XPRSprobException

presolveSol
```
public void presolveSol(double[] origx,
                        double[] prex)
                 throws XPRSprobException
```
Presolves a primal solution formulated in the input space into the corresponding solution formulated in the presolved space. The problem itself is unchanged.

Parameters:

origx - Double array of length INPUTCOLS with the values of the primal variables in the input space. Cannot be null.

prex - Double array of length COLS where the values of the primal variables will be returned. Cannot be null.

Throws:

XPRSprobException

postSolveSol
```
public void postSolveSol(double[] prex,
                         double[] origx)
                  throws XPRSprobException
```
Postsolves a primal solution formulated in the presolved space into the corresponding solution formulated in the input space. The problem itself is unchanged.

Parameters:

prex - Double array of length COLS with the values of the primal variables in the presolved space. Cannot be null.

origx - Double array of length INPUTCOLS where the values of the primal variables will be returned. Cannot be null.

Throws:

XPRSprobException

getPivots
```
public void getPivots(int enter,
                      int[] outlist,
                      double[] x,
                      DoubleHolder p_objval,
                      IntHolder p_npivots,
                      int maxpivots)
               throws XPRSprobException
```
Returns a list of potential leaving variables if a specified variable enters the basis.

Parameters:

enter - Index of the specified row or column to enter basis.

outlist - Integer array of length maxpivots to hold list of potential leaving variables. May be null if not required.

x - Double array of length ROWS + SPAREROWS + COLS to hold the values of all the variables that would result if enter entered the basis. May be null if not required.

p_objval - Pointer to a double where the objective function value that would result if enter entered the basis will be returned.

p_npivots - Pointer to an integer where the actual number of potential leaving variables will be returned.

maxpivots - Maximum number of potential leaving variables to return.

Throws:

XPRSprobException

writeProb
```
public void writeProb(java.lang.String filename,
                      java.lang.String flags)
               throws XPRSprobException
```
Writes the current problem to an MPS or LP file.
Examples using writeProb:
Parameters:

filename - A string of up to MAXPROBNAMELENGTH characters to contain the file name to which the problem is to be written. If omitted, the default problem_name is used with a .mps extension, unless the l flag is used in which case the extension is .lp.
flags - Flags, which can be one or more of the following:
- o: one element per line;
- n: output the scaled problem;
- s: scrambled vector names;
- l: output in LP format;
- p: output values in full precision (obsolete as this is now default behavior);
- t: omit the Xpress header in LP or MPS format;
- v: use the provided filename verbatim, without appending the .mps or .lp extension;
- z: compress the output file.
Throws:

XPRSprobException

writeProb
```
public void writeProb(java.lang.String filename)
               throws XPRSprobException
```
Convenience wrapper for writeProb(String, String).

Throws:

XPRSprobException

See Also:

writeProb(String, String)

writeProb
```
public void writeProb()
               throws XPRSprobException
```
Convenience wrapper for writeProb(String, String).

Throws:

XPRSprobException

See Also:

writeProb(String, String)

calcSlacks
```
public void calcSlacks(double[] solution,
                       double[] slacks)
                throws XPRSprobException
```
Calculates the row slack values for a given solution.

Parameters:

solution - Double array of length ORIGINALCOLS that holds the solution to calculate the slacks for.

slacks - Double array of length ORIGINALROWS in which the calculated row slacks are returned.

Throws:

XPRSprobException

calcReducedCosts
```
public void calcReducedCosts(double[] duals,
                             double[] solution,
                             double[] djs)
                      throws XPRSprobException
```
Calculates the reduced cost values for a given (row) dual solution.

Parameters:

duals - Double array of length ORIGINALROWS that holds the dual solution to calculate the reduced costs for.

solution - Double array of length ORIGINALCOLS that holds the primal solution. This is necessary for quadratic problems, otherwise may be null.

djs - Double array of length ORIGINALCOLS in which the calculated reduced costs are returned.

Throws:

XPRSprobException

calcObjective
```
public void calcObjective(double[] solution,
                          DoubleHolder p_objval)
                   throws XPRSprobException
```
Calculates the objective value of a given solution.

Parameters:

solution - Double array of length COLS that holds the solution.

p_objval - Pointer to a double in which the calculated objective value is returned.

Throws:

XPRSprobException

calcObjective
```
public double calcObjective(double[] solution)
```
Convenience wrapper for calcObjective(double[],com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

solution - Double array of length COLS that holds the solution.

Returns:

The value that the wrapped function would return in p_objval.

calcObjN
```
public void calcObjN(int objidx,
                     double[] solution,
                     DoubleHolder p_objval)
              throws XPRSprobException
```
Calculates the objective value of the given objective function in a multi-objective problem.

Parameters:

objidx - Index of the objective function to calculate.

solution - Double array of length COLS that holds the solution. May be null to use the current solution.

p_objval - Pointer to a double in which the calculated objective value is returned.

Throws:

XPRSprobException

calcObjN
```
public double calcObjN(int objidx,
                       double[] solution)
```
Convenience wrapper for calcObjN(int,double[],com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

objidx - Index of the objective function to calculate.

solution - Double array of length COLS that holds the solution. May be null to use the current solution.

Returns:

The value that the wrapped function would return in p_objval.

calcSolInfo
```
public void calcSolInfo(double[] solution,
                        double[] duals,
                        int property,
                        DoubleHolder p_value)
                 throws XPRSprobException
```
Calculates the required property of a solution, like maximum infeasibility of a given primal and dual solution.
Parameters:

solution - Double array of length ORIGINALCOLS that holds the solution. May be null when asking for dual infeasibility.

duals - Double array of length ORIGINALROWS that holds the dual solution. May be null when asking for primal/MIP infeasibility.
property - Defined the property to be calculated.
- XPRS_SOLINFO_ABSPRIMALINFEAS: the calculated maximum absolute primal infeasibility is returned.
- XPRS_SOLINFO_RELPRIMALINFEAS: the calculated maximum relative primal infeasibility is returned.
- XPRS_SOLINFO_ABSDUALINFEAS: the calculated maximum absolute dual infeasibility is returned.
- XPRS_SOLINFO_RELDUALINFEAS: the calculated maximum relative dual infeasibility is returned.
- XPRS_SOLINFO_MAXMIPFRACTIONAL: the calculated maximum absolute MIP fractionality or SOS infeasibility.
- XPRS_SOLINFO_ABSMIPINFEAS: the calculated maximum absolute MIP infeasibility (including delayed rows, indicators, general and piecewise linear constraints) is returned.
- XPRS_SOLINFO_RELMIPINFEAS: the calculated maximum relative MIP infeasibility (including delayed rows, indicators, general and piecewise linear constraints) is returned.
p_value - Pointer to a double where the calculated value is returned.

Throws:

XPRSprobException

calcSolInfo
```
public double calcSolInfo(double[] solution,
                          double[] duals,
                          int property)
```
Convenience wrapper for calcSolInfo(double[],double[],int,com.dashoptimization.DoubleHolder) that returns the output argument.
Parameters:

solution - Double array of length ORIGINALCOLS that holds the solution. May be null when asking for dual infeasibility.

duals - Double array of length ORIGINALROWS that holds the dual solution. May be null when asking for primal/MIP infeasibility.
property - Defined the property to be calculated.
- XPRS_SOLINFO_ABSPRIMALINFEAS: the calculated maximum absolute primal infeasibility is returned.
- XPRS_SOLINFO_RELPRIMALINFEAS: the calculated maximum relative primal infeasibility is returned.
- XPRS_SOLINFO_ABSDUALINFEAS: the calculated maximum absolute dual infeasibility is returned.
- XPRS_SOLINFO_RELDUALINFEAS: the calculated maximum relative dual infeasibility is returned.
- XPRS_SOLINFO_MAXMIPFRACTIONAL: the calculated maximum absolute MIP fractionality or SOS infeasibility.
- XPRS_SOLINFO_ABSMIPINFEAS: the calculated maximum absolute MIP infeasibility (including delayed rows, indicators, general and piecewise linear constraints) is returned.
- XPRS_SOLINFO_RELMIPINFEAS: the calculated maximum relative MIP infeasibility (including delayed rows, indicators, general and piecewise linear constraints) is returned.
Returns:

The value that the wrapped function would return in p_value.

getRowType
```
public void getRowType(byte[] rowtype,
                       int first,
                       int last)
                throws XPRSprobException
```
Returns the row types for the rows in a given range.
Examples using getRowType:
- Repair.java
Parameters:
rowtype - Character array of length last-first+1 characters where the row types will be returned:
- N: indicates a free constraint;
- L: indicates a <= constraint;
- E: indicates an = constraint;
- G: indicates a >= constraint;
- R: indicates a range constraint.
first - First row in the range.

last - Last row in the range.

Throws:

XPRSprobException

getRowType
```
public byte getRowType(int x)
                throws XPRSprobException
```
Convenience wrapper for getRowType(byte[], int, int). This overload retrieves and returns the information for only a single element instead of an array.
Examples using getRowType:
- Repair.java
Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRowType(byte[],int,int)

getRowType
```
public byte[] getRowType(int first,
                         int last)
                  throws XPRSprobException
```
Convenience wrapper for getRowType(byte[], int, int). This overload retrieves and returns the same information but allocates the required array for you.
Examples using getRowType:
- Repair.java
Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getRowType(byte[],int,int)

getPresolveBasis
```
public void getPresolveBasis(int[] rowstat,
                             int[] colstat)
                      throws XPRSprobException
```
Returns the current basis from memory into the user's data areas. If the problem is presolved, the presolved basis will be returned. Otherwise the original basis will be returned.
Parameters:
rowstat - Integer array of length ROWS to hold the basis status of the stack, surplus or artificial variable associated with each row. The status will be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): slack, surplus or artificial is non-basic at lower bound;
- XPRS_BASISSTATUS_BASIC (1): slack, surplus or artificial is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): slack or surplus is non-basic at upper bound.
May be null if not required.
colstat - Integer array of length COLS to hold the basis status of the columns in the constraint matrix. The status will be one of:
- XPRS_BASISSTATUS_NONBASIC_LOWER (0): variable is non-basic at lower bound, or superbasic at zero if the variable has no lower bound;
- XPRS_BASISSTATUS_BASIC (1): variable is basic;
- XPRS_BASISSTATUS_NONBASIC_UPPER (2): variable is at upper bound;
- XPRS_BASISSTATUS_SUPERBASIC (3): variable is super-basic.
May be null if not required.
Throws:

XPRSprobException

getColType
```
public void getColType(byte[] coltype,
                       int first,
                       int last)
                throws XPRSprobException
```
Returns the column types for the columns in a given range.
Examples using getColType:
- MostViolated.java
Parameters:
coltype - Character array of length last-first+1 where the column types will be returned:
- C: indicates a continuous variable;
- I: indicates an integer variable;
- B: indicates a binary variable;
- S: indicates a semi-continuous variable;
- R: indicates a semi-continuous integer variable;
- P: indicates a partial integer variable.
first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getColType
```
public byte getColType(int x)
                throws XPRSprobException
```
Convenience wrapper for getColType(byte[], int, int). This overload retrieves and returns the information for only a single element instead of an array.
Examples using getColType:
- MostViolated.java
Parameters:

x - The index of the element to query.

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getColType(byte[],int,int)

getColType
```
public byte[] getColType(int first,
                         int last)
                  throws XPRSprobException
```
Convenience wrapper for getColType(byte[], int, int). This overload retrieves and returns the same information but allocates the required array for you.
Examples using getColType:
- MostViolated.java
Parameters:

first - First index (inclusive).

last - Last index (inclusive).

Returns:

The requested information.

Throws:

XPRSprobException

See Also:

getColType(byte[],int,int)

getQRowCoeff
```
public void getQRowCoeff(int row,
                         int rowqcol1,
                         int rowqcol2,
                         DoubleHolder p_rowqcoef)
                  throws XPRSprobException
```
Returns a single quadratic constraint coefficient corresponding to the variable pair ( rowqcol1, rowqcol2) of the Hessian of a given constraint.

Parameters:

row - The quadratic row where the coefficient is to be looked up.

rowqcol1 - Column index for the first variable in the quadratic term.

rowqcol2 - Column index for the second variable in the quadratic term.

p_rowqcoef - Pointer to a double value where the objective function coefficient is to be placed.

Throws:

XPRSprobException

getQRowCoeff
```
public double getQRowCoeff(int row,
                           int rowqcol1,
                           int rowqcol2)
```
Convenience wrapper for getQRowCoeff(int,int,int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

row - The quadratic row where the coefficient is to be looked up.

rowqcol1 - Column index for the first variable in the quadratic term.

rowqcol2 - Column index for the second variable in the quadratic term.

Returns:

The value that the wrapped function would return in p_rowqcoef.

getQRowQMatrix
```
public void getQRowQMatrix(int row,
                           int[] start,
                           int[] colind,
                           double[] rowqcoef,
                           int maxcoefs,
                           IntHolder p_ncoefs,
                           int first,
                           int last)
                    throws XPRSprobException
```
Returns the nonzeros in a quadratic constraint coefficients matrix for the columns in a given range. To achieve maximum efficiency, getQRowQMatrix returns the lower triangular part of this matrix only.

Parameters:

row - Index of the row for which the quadratic coefficients are to be returned.

start - Integer array which will be filled with indices indicating the starting offsets in the colind and rowqcoef arrays for each requested column. It must be length of at least last-first+2. Column i starts at position start[i] in the colind and rowqcoef arrays, and has start[i+1]-start[i] elements in it. May be null if maxcoefs is 0.

colind - Integer array of length maxcoefs which will be filled with the column indices of the nonzero elements in the lower triangular part of Q. May be null if maxcoefs is 0.

rowqcoef - Double array of length maxcoefs which will be filled with the nonzero element values. May be null if maxcoefs is 0.

maxcoefs - Number of elements to be saved in colind and rowqcoef. If maxcoefs < *p_ncoefs, only maxcoefs elements are written.

p_ncoefs - Pointer to the integer where the number of nonzero elements in the queried columns will be returned. If the number of nonzero elements is greater than maxcoefs, then only maxcoefs elements will be returned. If p_ncoefs is smaller than maxcoefs, then only p_ncoefs will be returned. May be null.

first - First column in the range.

last - Last column in the range.

Throws:

XPRSprobException

getQRowQMatrix
```
public int getQRowQMatrix(int row,
                          int[] start,
                          int[] colind,
                          double[] rowqcoef,
                          int maxcoefs,
                          int first,
                          int last)
                   throws XPRSprobException
```
Convenience wrapper for getQRowQMatrix(int, int[], int[], double[], int, com.dashoptimization.IntHolder, int, int).

Returns:

The value that would be returned by getQRowQMatrix(int, int[], int[], double[], int, com.dashoptimization.IntHolder, int, int) as output parameter.

Throws:

XPRSprobException

See Also:

getQRowQMatrix(int, int[], int[], double[], int, com.dashoptimization.IntHolder, int, int)

getQRowQMatrixTriplets
```
public void getQRowQMatrixTriplets(int row,
                                   IntHolder p_ncoefs,
                                   int[] rowqcol1,
                                   int[] rowqcol2,
                                   double[] rowqcoef)
                            throws XPRSprobException
```
Returns the nonzeros in a quadratic constraint coefficients matrix as triplets (index pairs with coefficients). To achieve maximum efficiency, getQRowQMatrixTriplets returns the lower triangular part of this matrix only.

Parameters:

row - Index of the row for which the quadratic coefficients are to be returned.

p_ncoefs - Argument used to return the number of quadratic coefficients in the row. May be null if not required.

rowqcol1 - First index in the triplets. May be null if not required.

rowqcol2 - Second index in the triplets. May be null if not required.

rowqcoef - Coefficients in the triplets. May be null if not required.

Throws:

XPRSprobException

getQRowQMatrixTriplets
```
public int getQRowQMatrixTriplets(int row,
                                  int[] rowqcol1,
                                  int[] rowqcol2,
                                  double[] rowqcoef)
                           throws XPRSprobException
```
Convenience wrapper for getQRowQMatrixTriplets(int, com.dashoptimization.IntHolder, int[], int[], double[]).

Returns:

The value that would be returned by getQRowQMatrixTriplets(int, com.dashoptimization.IntHolder, int[], int[], double[]) as output parameter.

Throws:

XPRSprobException

See Also:

getQRowQMatrixTriplets(int, com.dashoptimization.IntHolder, int[], int[], double[])

chgQRowCoeff
```
public void chgQRowCoeff(int row,
                         int rowqcol1,
                         int rowqcol2,
                         double rowqcoef)
                  throws XPRSprobException
```
Changes a single quadratic coefficient in a row.

Parameters:

row - Index of the row where the quadratic matrix is to be changed.

rowqcol1 - First index of the coefficient to be changed.

rowqcol2 - Second index of the coefficient to be changed.

rowqcoef - The new coefficient.

Throws:

XPRSprobException

getQRows
```
public void getQRows(IntHolder p_nrows,
                     int[] rowind)
              throws XPRSprobException
```
Returns the list indices of the rows that have quadratic coefficients.

Parameters:

p_nrows - Used to return the number of quadratic constraints in the matrix. It can be retrieved from the problem attribute QCONSTRAINTS. May be null if not required.

rowind - Array of length QCONSTRAINTS used to return the indices of rows with quadratic coefficients in them. May be null if not required.

Throws:

XPRSprobException

getQRows
```
public int getQRows(int[] rowind)
             throws XPRSprobException
```
Convenience wrapper for getQRows(com.dashoptimization.IntHolder, int[]).

Returns:

The value that would be returned by getQRows(com.dashoptimization.IntHolder, int[]) as output parameter.

Throws:

XPRSprobException

See Also:

getQRows(com.dashoptimization.IntHolder, int[])

getQRows
```
public int getQRows()
             throws XPRSprobException
```
Convenience wrapper for getQRows(com.dashoptimization.IntHolder, int[]).

Returns:

The value that would be returned by getQRows(com.dashoptimization.IntHolder, int[]) as output parameter.

Throws:

XPRSprobException

See Also:

getQRows(com.dashoptimization.IntHolder, int[])

chgBounds
```
public void chgBounds(int nbounds,
                      int[] colind,
                      byte[] bndtype,
                      double[] bndval)
               throws XPRSprobException
```
Used to change the bounds on columns in the matrix.
Examples using chgBounds:
Parameters:

nbounds - Number of bounds to change.

colind - Integer array of size nbounds containing the indices of the columns on which the bounds will change.
bndtype - Character array of length nbounds indicating the type of bound to change:
- U: indicates change the upper bound;
- L: indicates change the lower bound;
- B: indicates change both bounds, i.e. fix the column.
bndval - Double array of length nbounds giving the new bound values.

Throws:

XPRSprobException

addMipSol
```
public void addMipSol(int length,
                      double[] solval,
                      int[] colind,
                      java.lang.String name)
               throws XPRSprobException
```
Adds a new feasible, infeasible or partial MIP solution for the problem to the Optimizer.
Examples using addMipSol:
Parameters:

length - Number of columns for which a value is provided.

solval - Double array of length length containing solution values.

colind - Optional integer array of length length containing the column indices for the solution values provided in solval. May be null when solval provides a complete solution vector.

name - An optional name to associate with the solution. Can be null.

Throws:

XPRSprobException

getCutSlack
```
public void getCutSlack(XPRScut cutind,
                        DoubleHolder p_slack)
                 throws XPRSprobException
```
Used to calculate the slack value of a cut with respect to the current LP relaxation solution. The slack is calculated from the cut itself, and might be requested for any cut (even if it is not currently loaded into the problem).

Parameters:

cutind - Pointer to the cut for which the slack is to be calculated.

p_slack - Double pointer where the value of the slack is returned.

Throws:

XPRSprobException

getCutSlack
```
public double getCutSlack(XPRScut cutind)
```
Convenience wrapper for getCutSlack(XPRScut,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

cutind - Pointer to the cut for which the slack is to be calculated.

Returns:

The value that the wrapped function would return in p_slack.

getCutMap
```
public void getCutMap(int ncuts,
                      XPRScut[] cutind,
                      int[] cutmap)
               throws XPRSprobException
```
Used to return in which rows a list of cuts are currently loaded into the Optimizer. This is useful for example to retrieve the duals associated with active cuts.

Parameters:

ncuts - Number of cuts in the cutind array.

cutind - Pointer array to the cuts for which the row index is requested.

cutmap - Integer array of length ncuts, where the row indices are returned.

Throws:

XPRSprobException

getPresolveSol
```
public void getPresolveSol(double[] x,
                           double[] slack,
                           double[] duals,
                           double[] djs)
                    throws XPRSprobException
```
Returns the solution for the presolved problem from memory.

Parameters:

x - Double array of length COLS where the values of the primal variables will be returned. May be null if not required.

slack - Double array of length ROWS where the values of the slack variables will be returned. May be null if not required.

duals - Double array of length ROWS where the values of the dual variables will be returned. May be null if not required.

djs - Double array of length COLS where the reduced cost for each variable will be returned. May be null if not required.

Throws:

XPRSprobException

getPresolveSol
```
public void getPresolveSol(double[] x)
                    throws XPRSprobException
```
Convenience wrapper for getPresolveSol(double[], double[], double[], double[]).

Throws:

XPRSprobException

See Also:

getPresolveSol(double[], double[], double[], double[])

getSolution
```
public void getSolution(IntHolder status,
                        double[] x,
                        int first,
                        int last)
                 throws XPRSprobException
```
Returns the incumbent solution during or after optimization with optimize, mipOptimize, lpOptimize or nlpOptimize.
Examples using getSolution:
Parameters:

status - Information about the solution returned.

x - Double array of length last-first+1 where the value of the primal variables will be returned. May be null if not required.

first - First column in the solution.

last - Last column in the solution.

Throws:

XPRSprobException

getSolution

public double[] getSolution(IntHolder status,
                            int first,
                            int last)

Convenience wrapper for getSolution(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array.

getSolution
```
public double[] getSolution(int first,
                            int last)
```
Convenience wrapper for getSolution(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getSolution
```
public double getSolution(IntHolder status,
                          int index)
```
Convenience wrapper for getSolution(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value.

getSolution
```
public double getSolution(int index)
```
Convenience wrapper for getSolution(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getSolution
```
public double[] getSolution(IntHolder status)
```
Convenience wrapper for getSolution(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements.

getSolution
```
public double[] getSolution()
```
Convenience wrapper for getSolution(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getSlacks
```
public void getSlacks(IntHolder status,
                      double[] slacks,
                      int first,
                      int last)
               throws XPRSprobException
```
Returns the slack values from the incumbent solution during or after optimization with optimize, mipOptimize, lpOptimize or nlpOptimize.
Examples using getSlacks:
- Repair.java
- Tableau.java
Parameters:

status - Information about the slacks returned.

slacks - Double array of length last-first+1 where the value of the slack variables will be returned. May be null if not required.

first - First row in the slacks.

last - Last row in the slacks.

Throws:

XPRSprobException

getSlacks

public double[] getSlacks(IntHolder status,
                          int first,
                          int last)

Convenience wrapper for getSlacks(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array.

getSlacks
```
public double[] getSlacks(int first,
                          int last)
```
Convenience wrapper for getSlacks(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getSlack
```
public double getSlack(IntHolder status,
                       int index)
```
Convenience wrapper for getSlacks(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value.

getSlack
```
public double getSlack(int index)
```
Convenience wrapper for getSlacks(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getSlacks
```
public double[] getSlacks(IntHolder status)
```
Convenience wrapper for getSlacks(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements.

getSlacks
```
public double[] getSlacks()
```
Convenience wrapper for getSlacks(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getDuals
```
public void getDuals(IntHolder status,
                     double[] duals,
                     int first,
                     int last)
              throws XPRSprobException
```
Returns the dual values from the incumbent solution during or after optimization of a continuous problem with optimize, lpOptimize or nlpOptimize.
Examples using getDuals:
- CuttingStock.java
Parameters:

status - Information about the dual solution returned.

duals - Double array of length last-first+1 where the values of the dual variables will be returned. May be null if not required.

first - First row in the dual solution.

last - Last row in the dual solution.

Throws:

XPRSprobException

getDuals

public double[] getDuals(IntHolder status,
                         int first,
                         int last)

Convenience wrapper for getDuals(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array.

getDuals
```
public double[] getDuals(int first,
                         int last)
```
Convenience wrapper for getDuals(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getDual
```
public double getDual(IntHolder status,
                      int index)
```
Convenience wrapper for getDuals(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value.

getDual
```
public double getDual(int index)
```
Convenience wrapper for getDuals(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getDuals
```
public double[] getDuals(IntHolder status)
```
Convenience wrapper for getDuals(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements.

getDuals
```
public double[] getDuals()
```
Convenience wrapper for getDuals(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getRedCosts
```
public void getRedCosts(IntHolder status,
                        double[] djs,
                        int first,
                        int last)
                 throws XPRSprobException
```
Returns the reduced costs from the incumbent solution during or after optimization of a continuous problem with optimize, lpOptimize or nlpOptimize.

Parameters:

status - Information about the reduced costs returned.

djs - Double array of length last-first+1 where the reduced costs for the variables will be returned. May be null if not required.

first - First column in the reduced costs.

last - Last column in the reduced costs.

Throws:

XPRSprobException

getRedCosts

public double[] getRedCosts(IntHolder status,
                            int first,
                            int last)

Convenience wrapper for getRedCosts(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array.

getRedCosts
```
public double[] getRedCosts(int first,
                            int last)
```
Convenience wrapper for getRedCosts(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getRedCost
```
public double getRedCost(IntHolder status,
                         int index)
```
Convenience wrapper for getRedCosts(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value.

getRedCost
```
public double getRedCost(int index)
```
Convenience wrapper for getRedCosts(com.dashoptimization.IntHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getRedCosts
```
public double[] getRedCosts(IntHolder status)
```
Convenience wrapper for getRedCosts(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements.

getRedCosts
```
public double[] getRedCosts()
```
Convenience wrapper for getRedCosts(com.dashoptimization.IntHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getLpSol
```
public void getLpSol(double[] x,
                     double[] slack,
                     double[] duals,
                     double[] djs)
              throws XPRSprobException
```
Used to obtain the LP solution values following optimization.

Parameters:

x - Double array of length ORIGINALCOLS where the values of the primal variables will be returned. May be null if not required.

slack - Double array of length ORIGINALROWS where the values of the slack variables will be returned. May be null if not required.

duals - Double array of length ORIGINALROWS where the values of the dual variables ( c_B^TB^-1) will be returned. May be null if not required.

djs - Double array of length ORIGINALCOLS where the reduced cost for each variable ( c^T-c_B^TB^-1A) will be returned. May be null if not required.

Throws:

XPRSprobException

getLpSol
```
public void getLpSol(double[] x)
              throws XPRSprobException
```
Convenience wrapper for getLpSol(double[], double[], double[], double[]).

Throws:

XPRSprobException

See Also:

getLpSol(double[], double[], double[], double[])

getLpSolVal
```
@Deprecated
public void getLpSolVal(int col,
                        int row,
                        DoubleHolder p_x,
                        DoubleHolder p_slack,
                        DoubleHolder p_dual,
                        DoubleHolder p_dj)
                 throws XPRSprobException
```
Deprecated.
since 44.00, use getSolution(), getCallbackSolution(), getSlacks(), or getCallbackSlacks(), getRedCosts(), getCallbackRedCosts(), getDuals(), or getCallbackDuals().

Used to obtain a single LP solution value following optimization.

Parameters:

col - Column index of the variable for which to return the solution value.

row - Row index of the constraint for which to return the solution value.

p_x - Double pointer where the value of the primal variable will be returned. May be null if not required.

p_slack - Double pointer where the value of the slack variable will be returned. May be null if not required.

p_dual - Double pointer where the value of the dual variable ( c_B^TB^-1) will be returned. May be null if not required.

p_dj - Double pointer where the reduced costs for the variable ( c^T-c_B^TB^-1A) will be returned. May be null if not required.

Throws:

XPRSprobException

getMipSol
```
@Deprecated
public void getMipSol(double[] x,
                      double[] slack)
               throws XPRSprobException
```
Deprecated.
since 44.00, use getSolution(), getCallbackSolution(), getSlacks(), or getCallbackSlacks().

Used to obtain the solution values of the last MIP solution that was found.

Parameters:

x - Double array of length ORIGINALCOLS where the values of the primal variables will be returned. May be null if not required.

slack - Double array of length ORIGINALROWS where the values of the slack variables will be returned. May be null if not required.

Throws:

XPRSprobException

getMipSol
```
@Deprecated
public void getMipSol(double[] x)
               throws XPRSprobException
```
Deprecated.
since 44.00, use getSolution(), getCallbackSolution(), getSlacks(), or getCallbackSlacks().

Convenience wrapper for getMipSol(double[], double[]).

Throws:

XPRSprobException

See Also:

getMipSol(double[], double[])

getMipSolVal
```
@Deprecated
public void getMipSolVal(int col,
                         int row,
                         DoubleHolder p_x,
                         DoubleHolder p_slack)
                  throws XPRSprobException
```
Deprecated.
since 44.00, use getSolution(), getCallbackSolution(), getSlacks(), or getCallbackSlacks().

Used to obtain a single solution value of the last MIP solution that was found.

Parameters:

col - Column index of the variable for which to return the solution value.

row - Row index of the constraint for which to return the solution value.

p_x - Double pointer where the value of the primal variable will be returned. May be null if not required.

p_slack - Double pointer where the value of the slack variable will be returned. May be null if not required.

Throws:

XPRSprobException

getCallbackSolution
```
public void getCallbackSolution(BoolHolder p_available,
                                double[] x,
                                int first,
                                int last)
                         throws XPRSprobException
```
Returns the primal values from the solution associated with the current callback.
Examples using getCallbackSolution:
Parameters:

p_available - This variable will be set to 1 if a solution is available. May be null if not required.

x - Double array of length last-first+1 where the values of the primal variables will be returned. May be null if not required.

first - First column in the solution to return.

last - Last column in the solution to return.

Throws:

XPRSprobException

getCallbackSolution

public double[] getCallbackSolution(BoolHolder p_available,
                                    int first,
                                    int last)

Convenience wrapper for getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackSolution
```
public double[] getCallbackSolution(int first,
                                    int last)
```
Convenience wrapper for getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackSolution
```
public double getCallbackSolution(BoolHolder p_available,
                                  int index)
```
Convenience wrapper for getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackSolution
```
public double getCallbackSolution(int index)
```
Convenience wrapper for getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackSolution
```
public double[] getCallbackSolution(BoolHolder p_available)
```
Convenience wrapper for getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackSolution
```
public double[] getCallbackSolution()
```
Convenience wrapper for getCallbackSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackSlacks
```
public void getCallbackSlacks(BoolHolder p_available,
                              double[] slacks,
                              int first,
                              int last)
                       throws XPRSprobException
```
Returns the slack values from the solution associated with the current callback.
Examples using getCallbackSlacks:
- ELSCut.java
Parameters:

p_available - This variable will be set to 1 if a solution is available. May be null if not required.

slacks - Double array of length last-first+1 where the values of the slack variables will be returned. May be null if not required.

first - First row whose slack value to return.

last - Last row whose slack value to return.

Throws:

XPRSprobException

getCallbackSlacks

public double[] getCallbackSlacks(BoolHolder p_available,
                                  int first,
                                  int last)

Convenience wrapper for getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackSlacks
```
public double[] getCallbackSlacks(int first,
                                  int last)
```
Convenience wrapper for getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackSlack
```
public double getCallbackSlack(BoolHolder p_available,
                               int index)
```
Convenience wrapper for getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackSlack
```
public double getCallbackSlack(int index)
```
Convenience wrapper for getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackSlacks
```
public double[] getCallbackSlacks(BoolHolder p_available)
```
Convenience wrapper for getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackSlacks
```
public double[] getCallbackSlacks()
```
Convenience wrapper for getCallbackSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackDuals
```
public void getCallbackDuals(BoolHolder p_available,
                             double[] duals,
                             int first,
                             int last)
                      throws XPRSprobException
```
Returns the dual values from the solution associated with the current callback.
Examples using getCallbackDuals:
- ELSCut.java
Parameters:

p_available - This variable will be set to 1 if a dual solution is available. May be null if not required.

duals - Double array of length last-first+1 where the values of the dual variables will be returned. May be null if not required.

first - First row whose dual value to return.

last - Last row whose dual value to return.

Throws:

XPRSprobException

getCallbackDuals

public double[] getCallbackDuals(BoolHolder p_available,
                                 int first,
                                 int last)

Convenience wrapper for getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackDuals
```
public double[] getCallbackDuals(int first,
                                 int last)
```
Convenience wrapper for getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackDual
```
public double getCallbackDual(BoolHolder p_available,
                              int index)
```
Convenience wrapper for getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackDual
```
public double getCallbackDual(int index)
```
Convenience wrapper for getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackDuals
```
public double[] getCallbackDuals(BoolHolder p_available)
```
Convenience wrapper for getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackDuals
```
public double[] getCallbackDuals()
```
Convenience wrapper for getCallbackDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackRedCosts
```
public void getCallbackRedCosts(BoolHolder p_available,
                                double[] djs,
                                int first,
                                int last)
                         throws XPRSprobException
```
Returns the reduced costs from the solution associated with the current callback.
Examples using getCallbackRedCosts:
- ELSCut.java
Parameters:

p_available - This variable will be set to 1 if a dual solution is available. May be null if not required.

djs - Double array of length last-first+1 where the reduced costs of the variables will be returned. May be null if not required.

first - First column whose reduced cost to return.

last - Last column whose reduced cost to return.

Throws:

XPRSprobException

getCallbackRedCosts

public double[] getCallbackRedCosts(BoolHolder p_available,
                                    int first,
                                    int last)

Convenience wrapper for getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackRedCosts
```
public double[] getCallbackRedCosts(int first,
                                    int last)
```
Convenience wrapper for getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackRedCost
```
public double getCallbackRedCost(BoolHolder p_available,
                                 int index)
```
Convenience wrapper for getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackRedCost
```
public double getCallbackRedCost(int index)
```
Convenience wrapper for getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackRedCosts
```
public double[] getCallbackRedCosts(BoolHolder p_available)
```
Convenience wrapper for getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackRedCosts
```
public double[] getCallbackRedCosts()
```
Convenience wrapper for getCallbackRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveSolution
```
public void getCallbackPresolveSolution(BoolHolder p_available,
                                        double[] x,
                                        int first,
                                        int last)
                                 throws XPRSprobException
```
Returns the solution to the presolved problem associated with the current callback.
Examples using getCallbackPresolveSolution:
- MostViolated.java
Parameters:

p_available - This variable will be set to 1 if a solution is available. May be null if not required.

x - Double array of length last-first+1 where the values of the primal variables will be returned. May be null if not required.

first - First column in the solution to return.

last - Last column in the solution to return.

Throws:

XPRSprobException

getCallbackPresolveSolution

public double[] getCallbackPresolveSolution(BoolHolder p_available,
                                            int first,
                                            int last)

Convenience wrapper for getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackPresolveSolution
```
public double[] getCallbackPresolveSolution(int first,
                                            int last)
```
Convenience wrapper for getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveSolution
```
public double getCallbackPresolveSolution(BoolHolder p_available,
                                          int index)
```
Convenience wrapper for getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackPresolveSolution
```
public double getCallbackPresolveSolution(int index)
```
Convenience wrapper for getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveSolution
```
public double[] getCallbackPresolveSolution(BoolHolder p_available)
```
Convenience wrapper for getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackPresolveSolution
```
public double[] getCallbackPresolveSolution()
```
Convenience wrapper for getCallbackPresolveSolution(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveSlacks
```
public void getCallbackPresolveSlacks(BoolHolder p_available,
                                      double[] slacks,
                                      int first,
                                      int last)
                               throws XPRSprobException
```
Returns the slack values from the solution to the presolved problem associated with the current callback.

Parameters:

p_available - This variable will be set to 1 if a solution is available. May be null if not required.

slacks - Double array of length last-first+1 where the values of the slack variables will be returned. May be null if not required.

first - First row whose slack value to return.

last - Last row whose slack value to return.

Throws:

XPRSprobException

getCallbackPresolveSlacks

public double[] getCallbackPresolveSlacks(BoolHolder p_available,
                                          int first,
                                          int last)

Convenience wrapper for getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackPresolveSlacks
```
public double[] getCallbackPresolveSlacks(int first,
                                          int last)
```
Convenience wrapper for getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveSlack
```
public double getCallbackPresolveSlack(BoolHolder p_available,
                                       int index)
```
Convenience wrapper for getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackPresolveSlack
```
public double getCallbackPresolveSlack(int index)
```
Convenience wrapper for getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveSlacks
```
public double[] getCallbackPresolveSlacks(BoolHolder p_available)
```
Convenience wrapper for getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackPresolveSlacks
```
public double[] getCallbackPresolveSlacks()
```
Convenience wrapper for getCallbackPresolveSlacks(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveDuals
```
public void getCallbackPresolveDuals(BoolHolder p_available,
                                     double[] duals,
                                     int first,
                                     int last)
                              throws XPRSprobException
```
Returns the dual values from the solution to the presolved problem associated with the current callback.

Parameters:

p_available - This variable will be set to 1 if a dual solution is available. May be null if not required.

duals - Double array of length last-first+1 where the values of the dual variables will be returned. May be null if not required.

first - First row whose dual value to return.

last - Last row whose dual value to return.

Throws:

XPRSprobException

getCallbackPresolveDuals

public double[] getCallbackPresolveDuals(BoolHolder p_available,
                                         int first,
                                         int last)

Convenience wrapper for getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackPresolveDuals
```
public double[] getCallbackPresolveDuals(int first,
                                         int last)
```
Convenience wrapper for getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveDual
```
public double getCallbackPresolveDual(BoolHolder p_available,
                                      int index)
```
Convenience wrapper for getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackPresolveDual
```
public double getCallbackPresolveDual(int index)
```
Convenience wrapper for getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveDuals
```
public double[] getCallbackPresolveDuals(BoolHolder p_available)
```
Convenience wrapper for getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackPresolveDuals
```
public double[] getCallbackPresolveDuals()
```
Convenience wrapper for getCallbackPresolveDuals(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveRedCosts
```
public void getCallbackPresolveRedCosts(BoolHolder p_available,
                                        double[] djs,
                                        int first,
                                        int last)
                                 throws XPRSprobException
```
Returns the reduced costs from the solution to the presolved problem associated with the current callback.

Parameters:

p_available - This variable will be set to 1 if a dual solution is available. May be null if not required.

djs - Double array of length last-first+1 where the reduced costs of the variables will be returned. May be null if not required.

first - First column whose reduced cost to return.

last - Last column whose reduced cost to return.

Throws:

XPRSprobException

getCallbackPresolveRedCosts

public double[] getCallbackPresolveRedCosts(BoolHolder p_available,
                                            int first,
                                            int last)

Convenience wrapper for getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array.

getCallbackPresolveRedCosts
```
public double[] getCallbackPresolveRedCosts(int first,
                                            int last)
```
Convenience wrapper for getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveRedCost
```
public double getCallbackPresolveRedCost(BoolHolder p_available,
                                         int index)
```
Convenience wrapper for getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value.

getCallbackPresolveRedCost
```
public double getCallbackPresolveRedCost(int index)
```
Convenience wrapper for getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that queries only a single value./ Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

getCallbackPresolveRedCosts
```
public double[] getCallbackPresolveRedCosts(BoolHolder p_available)
```
Convenience wrapper for getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements.

getCallbackPresolveRedCosts
```
public double[] getCallbackPresolveRedCosts()
```
Convenience wrapper for getCallbackPresolveRedCosts(com.dashoptimization.BoolHolder, double[], int, int) that allocates the output array and queries all elements. Before calling this function you should make sure that a solution is available and satisfies desired requiresments like feasible, optimal, ...

chgObj
```
public void chgObj(int ncols,
                   int[] colind,
                   double[] objcoef)
            throws XPRSprobException
```
Used to change the objective function coefficients.
Examples using chgObj:
Parameters:

ncols - Number of objective function coefficient elements to change.

colind - Integer array of length ncols containing the indices of the columns whose objective coefficients will change. An index of -1 indicates that the fixed part of the objective function on the right hand side should change.

objcoef - Double array of length ncols giving the new objective function coefficients.

Throws:

XPRSprobException

chgObj
```
public void chgObj(int x,
                   double value)
            throws XPRSprobException
```
Convenience wrapper for chgObj(int, int[], double[]). This function only modifies a single element.
Examples using chgObj:
Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

chgObj(int, int[], double[])

chgCoef
```
public void chgCoef(int row,
                    int col,
                    double coef)
             throws XPRSprobException
```
Used to change a single coefficient in the matrix. If the coefficient does not already exist, a new coefficient will be added to the matrix. If many coefficients are being added to a row of the matrix, it may be more efficient to delete the old row of the matrix and add a new row.
Examples using chgCoef:
Parameters:

row - Row index for the coefficient.

col - Column index for the coefficient.

coef - New value for the coefficient. If coef is zero, any existing coefficient will be deleted.

Throws:

XPRSprobException

chgMCoef
```
public void chgMCoef(int ncoefs,
                     int[] rowind,
                     int[] colind,
                     double[] rowcoef)
              throws XPRSprobException
```
Used to change multiple coefficients in the matrix. If any coefficient does not already exist, it will be added to the matrix. If many coefficients are being added to a row of the matrix, it may be more efficient to delete the old row of the matrix and add a new one.

Parameters:

ncoefs - Number of new coefficients.

rowind - Integer array of length ncoefs containing the row indices of the coefficients to be changed.

colind - Integer array of length ncoefs containing the column indices of the coefficients to be changed.

rowcoef - Double array of length ncoefs containing the new coefficient values. If an element of rowcoef is zero, the coefficient will be deleted.

Throws:

XPRSprobException

chgMCoef
```
public void chgMCoef(long ncoefs,
                     int[] rowind,
                     int[] colind,
                     double[] rowcoef)
              throws XPRSprobException
```
Used to change multiple coefficients in the matrix. If any coefficient does not already exist, it will be added to the matrix. If many coefficients are being added to a row of the matrix, it may be more efficient to delete the old row of the matrix and add a new one.

Parameters:

ncoefs - Number of new coefficients.

rowind - Integer array of length ncoefs containing the row indices of the coefficients to be changed.

colind - Integer array of length ncoefs containing the column indices of the coefficients to be changed.

rowcoef - Double array of length ncoefs containing the new coefficient values. If an element of rowcoef is zero, the coefficient will be deleted.

Throws:

XPRSprobException

chgMQObj
```
public void chgMQObj(int ncoefs,
                     int[] objqcol1,
                     int[] objqcol2,
                     double[] objqcoef)
              throws XPRSprobException
```
Used to change multiple quadratic coefficients in the objective function. If any of the coefficients does not exist already, new coefficients will be added to the objective function.

Parameters:

ncoefs - The number of coefficients to change.

objqcol1 - Integer array of size ncoefs containing the column index of the first variable in each quadratic term.

objqcol2 - Integer array of size ncoefs containing the column index of the second variable in each quadratic term.

objqcoef - New values for the coefficients. If an entry in objqcoef is 0, the corresponding entry will be deleted. These are the coefficients of the quadratic Hessian matrix.

Throws:

XPRSprobException

chgMQObj
```
public void chgMQObj(long ncoefs,
                     int[] objqcol1,
                     int[] objqcol2,
                     double[] objqcoef)
              throws XPRSprobException
```
Used to change multiple quadratic coefficients in the objective function. If any of the coefficients does not exist already, new coefficients will be added to the objective function.

Parameters:

ncoefs - The number of coefficients to change.

objqcol1 - Integer array of size ncoefs containing the column index of the first variable in each quadratic term.

objqcol2 - Integer array of size ncoefs containing the column index of the second variable in each quadratic term.

objqcoef - New values for the coefficients. If an entry in objqcoef is 0, the corresponding entry will be deleted. These are the coefficients of the quadratic Hessian matrix.

Throws:

XPRSprobException

chgQObj
```
public void chgQObj(int objqcol1,
                    int objqcol2,
                    double objqcoef)
             throws XPRSprobException
```
Used to change a single quadratic coefficient in the objective function corresponding to the variable pair (objqcol1,objqcol2) of the Hessian matrix.

Parameters:

objqcol1 - Column index for the first variable in the quadratic term.

objqcol2 - Column index for the second variable in the quadratic term.

objqcoef - New value for the coefficient in the quadratic Hessian matrix. If an entry in objqcoef is 0, the corresponding entry will be deleted.

Throws:

XPRSprobException

chgRHS
```
public void chgRHS(int nrows,
                   int[] rowind,
                   double[] rhs)
            throws XPRSprobException
```
Used to change right—hand side values of the problem.
Examples using chgRHS:
- GlobalRHSParametrics.java
- Repair.java
Parameters:

nrows - Number of right hand side values to change.

rowind - Integer array of length nrows containing the indices of the rows on which the right hand side values will change.

rhs - Double array of length nrows giving the right hand side values.

Throws:

XPRSprobException

chgRHS
```
public void chgRHS(int x,
                   double value)
            throws XPRSprobException
```
Convenience wrapper for chgRHS(int, int[], double[]). This function only modifies a single element.
Examples using chgRHS:
- GlobalRHSParametrics.java
- Repair.java
Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

chgRHS(int, int[], double[])

chgRHSrange
```
public void chgRHSrange(int nrows,
                        int[] rowind,
                        double[] rng)
                 throws XPRSprobException
```
Used to change the range for a row of the problem matrix.
Examples using chgRHSrange:
- Repair.java
Parameters:

nrows - Number of range elements to change.

rowind - Integer array of length nrows containing the indices of the rows on which the range elements will change.

rng - Double array of length nrows giving the range values.

Throws:

XPRSprobException

chgRHSrange
```
public void chgRHSrange(int x,
                        double value)
                 throws XPRSprobException
```
Convenience wrapper for chgRHSrange(int, int[], double[]). This function only modifies a single element.
Examples using chgRHSrange:
- Repair.java
Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

chgRHSrange(int, int[], double[])

chgRowType
```
public void chgRowType(int nrows,
                       int[] rowind,
                       byte[] rowtype)
                throws XPRSprobException
```
Used to change the type of a row in the matrix.
Examples using chgRowType:
- Repair.java
Parameters:

nrows - Number of rows to change.

rowind - Integer array of length nrows containing the indices of the rows.
rowtype - Character array of length nrows giving the new row types:
- L: indicates a <= row;
- E: indicates an = row;
- G: indicates a >= row;
- R: indicates a range row;
- N: indicates a free row.
Throws:

XPRSprobException

chgRowType
```
public void chgRowType(int x,
                       byte value)
                throws XPRSprobException
```
Convenience wrapper for chgRowType(int, int[], byte[]). This function only modifies a single element.
Examples using chgRowType:
- Repair.java
Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

chgRowType(int, int[], byte[])

msAddJob
```
public void msAddJob(java.lang.String description,
                     int ninitial,
                     int[] colind,
                     double[] initial,
                     int nintcontrols,
                     int[] intcontrolid,
                     int[] intcontrolval,
                     int ndblcontrols,
                     int[] dblcontrolid,
                     double[] dblcontrolval,
                     java.lang.Object data)
              throws XPRSprobException
```
Adds a multistart job to the multistart pool

Parameters:

description - Text description of the job. Used for messaging, may be null if not required.

ninitial - Number of initial values to set.

colind - Indices of the variables for which to set an initial value. May be null if no initial values are provided.

initial - Initial values for the variables for which to set an initial value. May be null if no initial values are provided.

nintcontrols - Number of integer controls to set.

intcontrolid - The indices of the integer controls to be set. May be null if nintcontrols is zero.

intcontrolval - The values of the integer controls to be set. May be null if nintcontrols is zero.

ndblcontrols - Number of double controls to set.

dblcontrolid - The indices of the double controls to be set. May be null if ndblcontrols is zero.

dblcontrolval - The values of the double controls to be set. May be null if ndblcontrols is zero.

data - Job specific user context pointer to be passed to the multistart callbacks.

Throws:

XPRSprobException

msAddPreset
```
public void msAddPreset(java.lang.String description,
                        int preset,
                        int maxjobs,
                        java.lang.Object data)
                 throws XPRSprobException
```
Loads a preset of jobs into the multistart job pool.

Parameters:

description - Text description of the preset. Used for messaging, may be null if not required.

preset - Which preset to load.

maxjobs - Maximum number of jobs to be added to the multistart pool.

data - Job specific user context pointer to be passed to the multistart callbacks.

Throws:

XPRSprobException

msAddCustomPreset
```
public void msAddCustomPreset(java.lang.String description,
                              int preset,
                              int maxjobs,
                              int ninitial,
                              int[] colind,
                              double[] initial,
                              int nintcontrols,
                              int[] intcontrolid,
                              int[] intcontrolval,
                              int ndblcontrols,
                              int[] dblcontrolid,
                              double[] dblcontrolval,
                              java.lang.Object data)
                       throws XPRSprobException
```
A combined version of XSLPmsaddjob and XSLPmsaddpreset. The preset described is loaded, topped up with the specific settings supplied

Parameters:

description - Text description of the job. Used for messaging, may be null if not required.

preset - Which preset to load.

maxjobs - Maximum number of jobs to be added to the multistart pool.

ninitial - Number of initial values to set.

colind - Indices of the variables for which to set an initial value. May be null if no initial values are provided.

initial - Initial values for the variables for which to set an initial value. May be null if no initial values are provided.

nintcontrols - Number of integer controls to set.

intcontrolid - The indices of the integer controls to be set. May be null if nintcontrols is zero.

intcontrolval - The values of the integer controls to be set. May be null if nintcontrols is zero.

ndblcontrols - Number of double controls to set.

dblcontrolid - The indices of the double controls to be set. May be null if ndblcontrols is zero.

dblcontrolval - The values of the double controls to be set. May be null if ndblcontrols is zero.

data - Job specific user context pointer to be passed to the multistart callbacks.

Throws:

XPRSprobException

nlpSetFunctionError

public void nlpSetFunctionError()
                         throws XPRSprobException

Set the function error flag for the problem

Throws:: XPRSprobException

nlpPrintEvalInfo
```
public void nlpPrintEvalInfo()
                      throws XPRSprobException
```
Print a summary of any evaluation errors that may have occurred during solving a problem

Throws:

XPRSprobException

nlpValidate
```
public void nlpValidate()
                 throws XPRSprobException
```
Validate the feasibility of constraints in a converged solution

Throws:

XPRSprobException

nlpOptimize
```
public void nlpOptimize(java.lang.String flags)
                 throws XPRSprobException
```
Maximize or minimize an SLP problem
Parameters:
flags - Flags to pass to XSLPnlpoptimize.
- g: Perform a branch and bound search if necessary to solve the problem;
- c: continue a previously interrupted solve.
All other flags are passed to the Optimizer: see lpOptimize.
Throws:

XPRSprobException

getNlpsol
```
@Deprecated
public void getNlpsol(double[] x,
                      double[] slack,
                      double[] duals,
                      double[] djs)
               throws XPRSprobException
```
Deprecated.
since 44.00, use getSolution(), getCallbackSolution(), getSlacks(), or getCallbackSlacks(), getRedCosts(), getCallbackRedCosts(), getDuals(), or getCallbackDuals().

Obtain the current SLP solution values

Parameters:

x - Double array of length XSLP_ORIGINALCOLS to hold the values of the primal variables. May be null if not required.

slack - Double array of length XSLP_ORIGINALROWS to hold the values of the slack variables. May be null if not required.

duals - Double array of length XSLP_ORIGINALROWS to hold the values of the dual variables. May be null if not required.

djs - Double array of length XSLP_ORIGINALCOLS to hold the reduced costs of the primal variables. May be null if not required.

Throws:

XPRSprobException

nlpCurrentIV
```
public void nlpCurrentIV()
                  throws XPRSprobException
```
Transfer the current solution to initial values

Throws:

XPRSprobException

nlpValidateRow
```
public void nlpValidateRow(int row)
                    throws XPRSprobException
```
Prints an extensive analysis on a given constraint of the SLP problem

Parameters:

row - The index of the row to be analyzed

Throws:

XPRSprobException

nlpValidateKKT
```
public void nlpValidateKKT(int mode,
                           int respectbasis,
                           int updatemult,
                           double violtarget)
                    throws XPRSprobException
```
Validates the first order optimality conditions also known as the Karush-Kuhn-Tucker (KKT) conditions versus the currect solution
Parameters:
mode - The calculation mode can be:
- 0: recalculate the reduced costs at the current solution using the current dual solution.
- 1: minimize the sum of KKT violations by adjusting the dual solution.
- 2: perform both.
respectbasis - The following ways are defined to assess if a constraint is active:
- 0: evaluate the recalculated slack activity versus XSLP_ECFTOL_R.
- 1: use the basis status of the slack in the linearized problem if available.
- 2: use both.
updatemult - The calculated values can be:
- 0: only used to calculate the XSLP_VALIDATIONINDEX_K measure.
- 1: used to update the current dual solution and reduced costs.
violtarget - When calculating the best KKT multipliers, it is possible to enforce an even distribution of reduced costs violations by enforcing a bound on them.

Throws:

XPRSprobException

msClear
```
public void msClear()
             throws XPRSprobException
```
Removes all scheduled jobs from the multistart job pool

Throws:

XPRSprobException

nlpEvaluateFormula
```
public void nlpEvaluateFormula(int parsed,
                               int[] type,
                               double[] values,
                               DoubleHolder p_value)
                        throws XPRSprobException
```
Evaluate a formula using the current values of the variables

Parameters:

parsed - integer indicating whether the formula of the item is in internal unparsed format ( parsed=0) or parsed (reverse Polish) format ( parsed=1).

type - Integer array of token types for the formula.

values - Double array of values corresponding to type.

p_value - Address of a double precision value to receive the result of the calculation.

Throws:

XPRSprobException

nlpEvaluateFormula
```
public double nlpEvaluateFormula(int parsed,
                                 int[] type,
                                 double[] values)
```
Convenience wrapper for nlpEvaluateFormula(int,int[],double[],com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

parsed - integer indicating whether the formula of the item is in internal unparsed format ( parsed=0) or parsed (reverse Polish) format ( parsed=1).

type - Integer array of token types for the formula.

values - Double array of values corresponding to type.

Returns:

The value that the wrapped function would return in p_value.

nlpValidateVector
```
public void nlpValidateVector(double[] solution,
                              DoubleHolder p_suminf,
                              DoubleHolder p_sumscaledinf,
                              DoubleHolder p_objval)
                       throws XPRSprobException
```
Validate the feasibility of constraints for a given solution

Parameters:

solution - A vector of length XPRS_COLS containing the solution vector to be checked.

p_suminf - Pointer to double in which the sum of infeasibility will be returned. May be null if not required.

p_sumscaledinf - Pointer to double in which the sum of scaled (relative) infeasibility will be returned. May be null if not required.

p_objval - Pointer to double in which the net objective will be returned. May be null if not required.

Throws:

XPRSprobException

nlpAddUserFunction

public XPRSprob.MapFunction nlpAddUserFunction(java.lang.String funcname,
                                               int options,
                                               XPRSprob.MapFunctor function)
                                        throws XPRSprobException

Throws:: XPRSprobException

nlpAddUserFunction

public XPRSprob.VecMapFunction nlpAddUserFunction(java.lang.String funcname,
                                                  int nin,
                                                  int options,
                                                  XPRSprob.VecMapFunctor function)
                                           throws XPRSprobException

Throws:: XPRSprobException

nlpAddUserFunction

public XPRSprob.MultiMapFunction nlpAddUserFunction(java.lang.String funcname,
                                                    int nin,
                                                    int nout,
                                                    int options,
                                                    XPRSprob.MultiMapFunctor function)
                                             throws XPRSprobException

Throws:: XPRSprobException

nlpAddUserFunction

public XPRSprob.MapDeltaFunction nlpAddUserFunction(java.lang.String funcname,
                                                    int options,
                                                    XPRSprob.MapDeltaFunctor function)
                                             throws XPRSprobException

Throws:: XPRSprobException

nlpAddUserFunction

public XPRSprob.VecMapDeltaFunction nlpAddUserFunction(java.lang.String funcname,
                                                       int nin,
                                                       int options,
                                                       XPRSprob.VecMapDeltaFunctor function)
                                                throws XPRSprobException

Throws:: XPRSprobException

nlpAddUserFunction

public XPRSprob.MultiMapDeltaFunction nlpAddUserFunction(java.lang.String funcname,
                                                         int nin,
                                                         int nout,
                                                         int options,
                                                         XPRSprob.MultiMapDeltaFunctor function)
                                                  throws XPRSprobException

Throws:: XPRSprobException

nlpDelUserFunction
```
public void nlpDelUserFunction(int type)
                        throws XPRSprobException
```
Delete a user function from the current problem

Parameters:

type - The identifier of the user function as returned by XSLPadduserfunction.

Throws:

XPRSprobException

nlpImportLibFunc
```
public void nlpImportLibFunc(java.lang.String libname,
                             java.lang.String funcname,
                             LongHolder p_function,
                             IntHolder p_status)
                      throws XPRSprobException
```
Imports a function from a library file to be called as a user function
Parameters:

libname - Filename of the library.

funcname - Fucntion name inside the library.

p_function - Function pointer to return the loaded function.
p_status - Outcome of the load operation
- 0: success.
- 1: library file not found.
- 2: library function in library file not found.
Throws:

XPRSprobException

nlpAddFormulas
```
public void nlpAddFormulas(int ncoefs,
                           int[] rowind,
                           int[] formulastart,
                           int parsed,
                           int[] type,
                           double[] value)
                    throws XPRSprobException
```
Add non-linear formulas to the SLP problem.

Parameters:

ncoefs - Number of non-linear coefficients to be added.

rowind - Integer array holding index of row for the coefficient.

formulastart - Integer array of length ncoefs+1 holding the start position in the arrays type and value of the formula for the coefficients. The last element should be set to the next position after the end of the last formula.

parsed - Integer indicating whether the token arrays are formatted as internal unparsed ( parsed=0) or internal parsed reverse Polish ( parsed=1).

type - Array of token types providing the formula for each coefficient.

value - Array of values corresponding to the types in type.

Throws:

XPRSprobException

nlpChgFormulaString
```
@Deprecated
public void nlpChgFormulaString(int row,
                                java.lang.String formula)
                         throws XPRSprobException
```
Deprecated.
since 42.00, use nlpChgFormulaStr() instead.

Add or replace a single matrix formula using a character string for the formula.

Parameters:

row - The index of the matrix row for the coefficient.

formula - Character string holding the formula with the tokens separated by spaces.

Throws:

XPRSprobException

nlpChgFormulaStr
```
public void nlpChgFormulaStr(int row,
                             java.lang.String formula)
                      throws XPRSprobException
```
Add or replace a single matrix formula using a character string for the formula.
Examples using nlpChgFormulaStr:
Parameters:

row - The index of the matrix row for the coefficient.

formula - Character string holding the formula with the tokens separated by spaces.

Throws:

XPRSprobException

nlpChgFormula
```
public void nlpChgFormula(int row,
                          int parsed,
                          int[] type,
                          double[] value)
                   throws XPRSprobException
```
Add or replace a single matrix formula using a parsed or unparsed formula
Examples using nlpChgFormula:
Parameters:

row - The index of the matrix row for the coefficient.

parsed - Integer indicating the whether the token arrays are formatted as internal unparsed ( parsed=0) or internal parsed reverse Polish ( parsed=1).

type - Array of token types providing the description and formula for each item.

value - Array of values corresponding to the types in type.

Throws:

XPRSprobException

nlpGetFormula
```
public void nlpGetFormula(int row,
                          int parsed,
                          int maxtypes,
                          IntHolder p_ntypes,
                          int[] type,
                          double[] value)
                   throws XPRSprobException
```
Retrieve a single matrix formula as a formula split into tokens.

Parameters:

row - Integer holding the row index for the formula.

parsed - Integer indicating whether the formula of the row is to be returned in internal unparsed format ( parsed=0) or parsed (reverse Polish) format ( parsed=1).

maxtypes - Maximum number of tokens to return, i.e., the length of the type and value arrays.

p_ntypes - Will be set to the length of the formula, including the XSLP_EOF token.

type - Integer array to hold the token types for the formula. May be null if maxtypes is zero.

value - Double array of values corresponding to type. May be null if maxtypes is zero.

Throws:

XPRSprobException

nlpGetFormulaRows
```
public void nlpGetFormulaRows(IntHolder p_nformulas,
                              int[] rowind)
                       throws XPRSprobException
```
Retrieve the list of positions of the nonlinear formulas in the problem

Parameters:

p_nformulas - Integer used to return the total number of nonlinear formulas in the problem.

rowind - Integer array used for returning the row positions of the nonlinear formulas. May be null if not required.

Throws:

XPRSprobException

nlpLoadFormulas
```
public void nlpLoadFormulas(int nnlpcoefs,
                            int[] rowind,
                            int[] formulastart,
                            int parsed,
                            int[] type,
                            double[] value)
                     throws XPRSprobException
```
Load non-linear formulas into the SLP problem

Parameters:

nnlpcoefs - Number of non-linear coefficients to be loaded.

rowind - Integer array holding index of row for the coefficient.

formulastart - Integer array of length nnlpcoefs+1 holding the start position in the arrays type and value of the formula for the coefficients. The last element should be set to the next position after the end of the last formula.

parsed - Integer indicating whether the token arrays are formatted as internal unparsed ( parsed=0) or internal parsed reverse Polish ( parsed=1).

type - Array of token types providing the formula for each coefficient.

value - Array of values corresponding to the types in type.

Throws:

XPRSprobException

nlpDelFormulas
```
public void nlpDelFormulas(int nformulas,
                           int[] rowind)
                    throws XPRSprobException
```
Delete nonlinear formulas from the current problem

Parameters:

nformulas - Number of SLP nonlinear formulas to delete.

rowind - Row indices of the SLP nonlinear formulas to delete.

Throws:

XPRSprobException

nlpGetFormulaString
```
@Deprecated
public void nlpGetFormulaString(int row,
                                StringHolder formula,
                                int maxbytes)
                         throws XPRSprobException
```
Deprecated.
since 42.00.

Retrieve a single matrix formula in a character string.

Parameters:

row - Integer holding the row index for the formula.

formula - Character buffer in which the formula will be placed in the same format as used for input from a file. The formula will be null terminated.

maxbytes - Maximum length of returned formula.

Throws:

XPRSprobException

nlpGetFormulaStr
```
public void nlpGetFormulaStr(int row,
                             StringHolder formula,
                             int maxbytes,
                             IntHolder p_nbytes)
                      throws XPRSprobException
```
Retrieve a single matrix formula in a character string.

Parameters:

row - Integer holding the row index for the formula.

formula - Character buffer in which the formula will be placed in the same format as used for input from a file. The formula will be null terminated. This argument may be null if maxbytes is zero.

maxbytes - Length of the formula buffer.

p_nbytes - Will be set to the length of the formula, not including the null terminator.

Throws:

XPRSprobException

nlpSetInitVal
```
public void nlpSetInitVal(int nvars,
                          int[] colind,
                          double[] initial)
                   throws XPRSprobException
```
Set the initial value of a variable
Examples using nlpSetInitVal:
- Glidert.java
Parameters:

nvars - Number of variables for which the initial value is to be set.

colind - Array of length nvars with index of the column for which the initial value is provided.

initial - Array of length nvars with the initial value.

Throws:

XPRSprobException

nlpSetInitVal
```
public void nlpSetInitVal(int x,
                          double value)
                   throws XPRSprobException
```
Convenience wrapper for nlpSetInitVal(int, int[], double[]). This function only modifies a single element.
Examples using nlpSetInitVal:
- Glidert.java
Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

nlpSetInitVal(int, int[], double[])

slpGetCoefFormula
```
public void slpGetCoefFormula(int row,
                              int col,
                              DoubleHolder p_factor,
                              int parsed,
                              int maxtypes,
                              IntHolder p_ntypes,
                              int[] type,
                              double[] value)
                       throws XPRSprobException
```
Retrieve a single matrix coefficient as a formula split into tokens. For a simpler version of this function see XSLPgetformula.

Parameters:

row - Integer holding the row index for the coefficient.

col - Integer holding the column index for the coefficient.

p_factor - Address of a double precision variable to receive the value of the constant factor multiplying the formula in the coefficient.

parsed - Integer indicating whether the formula of the item is to be returned in internal unparsed format ( parsed=0) or parsed (reverse Polish) format ( parsed=1).

maxtypes - Maximum number of tokens to return, i.e. length of the type and value arrays.

p_ntypes - Number of tokens returned in type and value.

type - Integer array to hold the token types for the formula. May be null if not required.

value - Double array of values corresponding to type. May be null if not required.

Throws:

XPRSprobException

slpGetCoefs
```
public void slpGetCoefs(IntHolder p_ncoefs,
                        int[] rowind,
                        int[] colind)
                 throws XPRSprobException
```
Retrieve the list of positions of the nonlinear coefficients in the problem. For a simpler version of this function see XSLPgetformularows.

Parameters:

p_ncoefs - Integer used to return the total number of nonlinear coefficients in the problem.

rowind - Integer array used for returning the row positions of the coefficients. May be null if not required.

colind - Integer array used for returning the column positions of the coefficients. May be null if not required.

Throws:

XPRSprobException

slpLoadCoefs
```
public void slpLoadCoefs(int ncoefs,
                         int[] rowind,
                         int[] colind,
                         double[] factor,
                         int[] formulastart,
                         int parsed,
                         int[] type,
                         double[] coef)
                  throws XPRSprobException
```
Load non-linear coefficients into the SLP problem. For a simpler version of this function see XSLPloadformulas.

Parameters:

ncoefs - Number of non-linear coefficients to be loaded.

rowind - Integer array holding index of row for the coefficient.

colind - Integer array holding index of column for the coefficient.

factor - Double array holding factor by which formula is scaled. If this is null, then a value of 1.0 will be used.

formulastart - Integer array of length ncoefs+1 holding the start position in the arrays type and coef of the formula for the coefficients. The last element should be set to the next position after the end of the last formula.

parsed - Integer indicating whether the token arrays are formatted as internal unparsed ( parsed=0) or internal parsed reverse Polish ( parsed=1).

type - Array of token types providing the formula for each coefficient.

coef - Array of values corresponding to the types in type.

Throws:

XPRSprobException

slpDelCoefs
```
public void slpDelCoefs(int ncoefs,
                        int[] rowind,
                        int[] colind)
                 throws XPRSprobException
```
Delete coefficients from the current problem. For a simpler version of this function see XSLPdelformulas.

Parameters:

ncoefs - Number of SLP coefficients to delete.

rowind - Row indices of the SLP coefficients to delete.

colind - Column indices of the SLP coefficients to delete.

Throws:

XPRSprobException

slpDelCoefs
```
public void slpDelCoefs(int x,
                        int value)
                 throws XPRSprobException
```
Convenience wrapper for slpDelCoefs(int, int[], int[]). This function only modifies a single element.

Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

slpDelCoefs(int, int[], int[])

slpGetCCoef
```
@Deprecated
public void slpGetCCoef(int row,
                        int col,
                        DoubleHolder p_factor,
                        StringHolder formula,
                        int maxbytes)
                 throws XPRSprobException
```
Deprecated.
since 42.00.

Retrieve a single matrix coefficient as a formula in a character string. For a simpler version of this function see nlpGetFormulaStr.

Parameters:

row - Integer holding the row index for the coefficient.

col - Integer holding the column index for the coefficient.

p_factor - Address of a double precision variable to receive the value of the constant factor multiplying the formula in the coefficient.

formula - Character buffer in which the formula will be placed in the same format as used for input from a file. The formula will be null terminated.

maxbytes - Maximum length of returned formula.

Throws:

XPRSprobException

slpGetCoefStr
```
public void slpGetCoefStr(int row,
                          int col,
                          DoubleHolder p_factor,
                          StringHolder formula,
                          int maxbytes,
                          IntHolder p_nbytes)
                   throws XPRSprobException
```
Retrieve a single matrix coefficient as a formula in a character string. For a simpler version of this function see nlpGetFormulaStr.

Parameters:

row - Integer holding the row index for the coefficient.

col - Integer holding the column index for the coefficient.

p_factor - Address of a double precision variable to receive the value of the constant factor multiplying the formula in the coefficient.

formula - Character buffer in which the formula will be placed in the same format as used for input from a file. The formula will be null terminated. This argument may be null if maxbytes is zero.

maxbytes - Length of the formula buffer.

p_nbytes - Will be set to the length of the formula, not including the null terminator.

Throws:

XPRSprobException

slpSetDetRow
```
public void slpSetDetRow(int nvars,
                         int[] colind,
                         int[] rowind)
                  throws XPRSprobException
```
Set the determining row of a variable

Parameters:

nvars - The number of variables for which determining rows are set.

colind - Array of length nvars with the index of the column for which the determining row is set.

rowind - Array of length nvars with the index of the determining row.

Throws:

XPRSprobException

slpSetDetRow
```
public void slpSetDetRow(int x,
                         int value)
                  throws XPRSprobException
```
Convenience wrapper for slpSetDetRow(int, int[], int[]). This function only modifies a single element.

Parameters:

x - Index of element to modify.

value - New value for x.

Throws:

XPRSprobException

See Also:

slpSetDetRow(int, int[], int[])

slpAddCoefs
```
public void slpAddCoefs(int ncoefs,
                        int[] rowind,
                        int[] colind,
                        double[] factor,
                        int[] formulastart,
                        int parsed,
                        int[] type,
                        double[] value)
                 throws XPRSprobException
```
Add non-linear coefficients to the SLP problem. For a simpler version of this function see XSLPaddformulas.

Parameters:

ncoefs - Number of non-linear coefficients to be added.

rowind - Integer array holding index of row for the coefficient.

colind - Integer array holding index of column for the coefficient.

factor - Double array holding factor by which the formula is scaled. If this is null, then a value of 1.0 will be used.

formulastart - Integer array of length ncoefs+1 holding the start position in the arrays type and value of the formula for the coefficients. The last element should be set to the next position after the end of the last formula.

parsed - Integer indicating whether the token arrays are formatted as internal unparsed ( parsed=0) or internal parsed reverse Polish ( parsed=1).

type - Array of token types providing the formula for each coefficient.

value - Array of values corresponding to the types in type.

Throws:

XPRSprobException

slpChgCCoef
```
@Deprecated
public void slpChgCCoef(int row,
                        int col,
                        DoubleHolder factor,
                        java.lang.String formula)
                 throws XPRSprobException
```
Deprecated.
since 42.00.

Add or change a single matrix coefficient using a character string for the formula. For a simpler version of this function see nlpChgFormulaStr.

Parameters:

row - The index of the matrix row for the coefficient.

col - The index of the matrix column for the coefficient.

factor - Address of a double precision variable holding the constant multiplier for the formula. If factor is null, a value of 1.0 will be used.

formula - Character string holding the formula with the tokens separated by spaces.

Throws:

XPRSprobException

slpChgCoefStr
```
public void slpChgCoefStr(int row,
                          int col,
                          DoubleHolder factor,
                          java.lang.String formula)
                   throws XPRSprobException
```
Add or change a single matrix coefficient using a character string for the formula. For a simpler version of this function see nlpChgFormulaStr.

Parameters:

row - The index of the matrix row for the coefficient.

col - The index of the matrix column for the coefficient.

factor - Address of a double precision variable holding the constant multiplier for the formula. If factor is null, a value of 1.0 will be used.

formula - Character string holding the formula with the tokens separated by spaces.

Throws:

XPRSprobException

slpChgCoef
```
public void slpChgCoef(int row,
                       int col,
                       DoubleHolder factor,
                       int parsed,
                       int[] type,
                       double[] value)
                throws XPRSprobException
```
Add or change a single matrix coefficient using a parsed or unparsed formula. For a simpler version of this function see XSLPchgformula.

Parameters:

row - The index of the matrix row for the coefficient.

col - The index of the matrix column for the coefficient.

factor - Address of a double precision variable holding the constant multiplier for the formula. If factor is null, a value of 1.0 will be used.

parsed - Integer indicating the whether the token arrays are formatted as internal unparsed ( parsed=0) or internal parsed reverse Polish ( parsed=1).

type - Array of token types providing the description and formula for each item.

value - Array of values corresponding to the types in type.

Throws:

XPRSprobException

slpCascadeSol
```
public void slpCascadeSol()
                   throws XPRSprobException
```
Re-calculate consistent values for SLP variables based on the current values of the remaining variables.

Throws:

XPRSprobException

slpCascadeOrder
```
public void slpCascadeOrder()
                     throws XPRSprobException
```
Establish a re-calculation sequence for SLP variables with determining rows.

Throws:

XPRSprobException

slpChgRowStatus
```
public void slpChgRowStatus(int row,
                            IntHolder status)
                     throws XPRSprobException
```
Change the status setting of a constraint
Parameters:

row - The index of the matrix row to be changed.
status - Address of an integer holding a bitmap with the new status settings. If the status is to be changed, always get the current status first (use XSLPgetrowstatus) and then change settings as required. The only settings likely to be changed are:
- Bit 11: Set if row must not have a penalty error vector. This is the equivalent of an enforced constraint (SLPDATA type EC).
Throws:

XPRSprobException

slpChgRowWt
```
public void slpChgRowWt(int row,
                        DoubleHolder weight)
                 throws XPRSprobException
```
Set or change the initial penalty error weight for a row

Parameters:

row - The index of the row whose weight is to be set or changed.

weight - Address of a double precision variable holding the new value of the weight. May be null if not required.

Throws:

XPRSprobException

slpChgDeltaType
```
public void slpChgDeltaType(int nvars,
                            int[] varind,
                            int[] deltatypes,
                            double[] values)
                     throws XPRSprobException
```
Changes the type of the delta assigned to a nonlinear variable
Parameters:

nvars - The number of SLP variables to change the delta type for.

varind - Indices of the variables to change the deltas for.
deltatypes - Type of the delta variable:
- 0 (XSLP_DELTA_CONT): Differentiable variable, default.
- 1 (XSLP_DELTA_SEMICONT): Variable where a minimum perturbation size given in values may be required before a significant change in the problem is achieved.
- 2 (XSLP_DELTA_INTEGER): Variable defined over the grid size given in values.
- 3 (XSLP_DELTA_EXPLORE): Variable where a meaningful step size should automatically be detected, with an upper limit given in values.
values - Grid or minimum step sizes for the variables.

Throws:

XPRSprobException

slpChgCascadeNLimit
```
public void slpChgCascadeNLimit(int col,
                                int limit)
                         throws XPRSprobException
```
Set a variable specific cascade iteration limit

Parameters:

col - The index of the column corresponding to the SLP variable for which the cascading limit is to be imposed.

limit - The new cascading iteration limit.

Throws:

XPRSprobException

slpConstruct
```
public void slpConstruct()
                  throws XPRSprobException
```
Create the full augmented SLP matrix and data structures, ready for optimization

Throws:

XPRSprobException

slpGetRowStatus
```
public void slpGetRowStatus(int row,
                            IntHolder p_status)
                     throws XPRSprobException
```
Retrieve the status setting of a constraint

Parameters:

row - The index of the matrix row whose data is to be obtained.

p_status - Address of an integer to receive the status settings.

Throws:

XPRSprobException

slpGetRowStatus
```
public int slpGetRowStatus(int row)
```
Convenience wrapper for slpGetRowStatus(int,com.dashoptimization.IntHolder) that returns the output argument.

Parameters:

row - The index of the matrix row whose data is to be obtained.

Returns:

The value that the wrapped function would return in p_status.

slpGetRowWT
```
public void slpGetRowWT(int row,
                        DoubleHolder p_weight)
                 throws XPRSprobException
```
Get the initial penalty error weight for a row

Parameters:

row - The index of the row whose weight is to be retrieved.

p_weight - Address of a double precision variable to receive the value of the weight.

Throws:

XPRSprobException

slpGetRowWT
```
public double slpGetRowWT(int row)
```
Convenience wrapper for slpGetRowWT(int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

row - The index of the row whose weight is to be retrieved.

Returns:

The value that the wrapped function would return in p_weight.

slpEvaluateCoef
```
public void slpEvaluateCoef(int row,
                            int col,
                            DoubleHolder p_value)
                     throws XPRSprobException
```
Evaluate a coefficient using the current values of the variables

Parameters:

row - Integer index of the row.

col - Integer index of the column.

p_value - Address of a double precision value to receive the result of the calculation.

Throws:

XPRSprobException

slpEvaluateCoef
```
public double slpEvaluateCoef(int row,
                              int col)
```
Convenience wrapper for slpEvaluateCoef(int,int,com.dashoptimization.DoubleHolder) that returns the output argument.

Parameters:

row - Integer index of the row.

col - Integer index of the column.

Returns:

The value that the wrapped function would return in p_value.

slpReInitialize
```
public void slpReInitialize()
                     throws XPRSprobException
```
Reset the SLP problem to match a just augmented system

Throws:

XPRSprobException

slpUnConstruct
```
public void slpUnConstruct()
                    throws XPRSprobException
```
Removes the augmentation and returns the problem to its pre-linearization state

Throws:

XPRSprobException

slpUpdateLinearization

public void slpUpdateLinearization()
                            throws XPRSprobException

Updates the current linearization

Throws:: XPRSprobException

slpFixPenalties
```
public void slpFixPenalties(IntHolder p_status)
                     throws XPRSprobException
```
Fixe the values of the error vectors

Parameters:

p_status - Return status after fixing the penalty variables: 0 is successful, nonzero otherwise.

Throws:

XPRSprobException

nlpPostsolveProb
```
public void nlpPostsolveProb()
                      throws XPRSprobException
```
Restores the problem to its pre-solve state

Throws:

XPRSprobException

nlpCalcSlacks
```
public void nlpCalcSlacks(double[] solution,
                          double[] slack)
                   throws XPRSprobException
```
Calculate the slack values for the provided solution in the non-linear problem

Parameters:

solution - The solution for which the slacks are requested.

slack - Array of length ROWS to hold the slacks.

Throws:

XPRSprobException

addLpLogListener
```
public void addLpLogListener(XPRSlpLogListener listener)
                      throws XPRSexception
```
Add a listener for the LpLog callback. Note that an object can have multiple LpLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all LpLog listeners will be removed.)

Throws:

XPRSexception

addLpLogListener
```
public void addLpLogListener(XPRSlpLogListener listener,
                             java.lang.Object data)
                      throws XPRSexception
```
Add a listener for the LpLog callback. Note that an object can have multiple LpLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all LpLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addLpLogListener
```
public void addLpLogListener(XPRSlpLogListener listener,
                             int priority)
                      throws XPRSexception
```
Add a listener for the LpLog callback. Note that an object can have multiple LpLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all LpLog listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addLpLogListener
```
public void addLpLogListener(XPRSlpLogListener listener,
                             java.lang.Object data,
                             int priority)
                      throws XPRSexception
```
Add a listener for the LpLog callback. Note that an object can have multiple LpLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all LpLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeLpLogListener
```
public void removeLpLogListener(XPRSlpLogListener listener)
                         throws XPRSexception
```
Removes the given LpLog listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeLpLogListener
```
public void removeLpLogListener(XPRSlpLogListener listener,
                                java.lang.Object data)
                         throws XPRSexception
```
Removes the given LpLog listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeLpLogListeners

public void removeLpLogListeners()
                          throws XPRSexception

Remove all listeners for the LpLog callback

Throws:: XPRSexception

addMipLogListener
```
public void addMipLogListener(XPRSmipLogListener listener)
                       throws XPRSexception
```
Add a listener for the MipLog callback. Note that an object can have multiple MipLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipLog listeners will be removed.)

Throws:

XPRSexception

addMipLogListener
```
public void addMipLogListener(XPRSmipLogListener listener,
                              java.lang.Object data)
                       throws XPRSexception
```
Add a listener for the MipLog callback. Note that an object can have multiple MipLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addMipLogListener
```
public void addMipLogListener(XPRSmipLogListener listener,
                              int priority)
                       throws XPRSexception
```
Add a listener for the MipLog callback. Note that an object can have multiple MipLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipLog listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addMipLogListener
```
public void addMipLogListener(XPRSmipLogListener listener,
                              java.lang.Object data,
                              int priority)
                       throws XPRSexception
```
Add a listener for the MipLog callback. Note that an object can have multiple MipLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeMipLogListener
```
public void removeMipLogListener(XPRSmipLogListener listener)
                          throws XPRSexception
```
Removes the given MipLog listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeMipLogListener
```
public void removeMipLogListener(XPRSmipLogListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Removes the given MipLog listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeMipLogListeners

public void removeMipLogListeners()
                           throws XPRSexception

Remove all listeners for the MipLog callback

Throws:: XPRSexception

addCutLogListener
```
public void addCutLogListener(XPRScutLogListener listener)
                       throws XPRSexception
```
Add a listener for the CutLog callback. Note that an object can have multiple CutLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutLog listeners will be removed.)

Throws:

XPRSexception

addCutLogListener
```
public void addCutLogListener(XPRScutLogListener listener,
                              java.lang.Object data)
                       throws XPRSexception
```
Add a listener for the CutLog callback. Note that an object can have multiple CutLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addCutLogListener
```
public void addCutLogListener(XPRScutLogListener listener,
                              int priority)
                       throws XPRSexception
```
Add a listener for the CutLog callback. Note that an object can have multiple CutLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutLog listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addCutLogListener
```
public void addCutLogListener(XPRScutLogListener listener,
                              java.lang.Object data,
                              int priority)
                       throws XPRSexception
```
Add a listener for the CutLog callback. Note that an object can have multiple CutLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeCutLogListener
```
public void removeCutLogListener(XPRScutLogListener listener)
                          throws XPRSexception
```
Removes the given CutLog listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeCutLogListener
```
public void removeCutLogListener(XPRScutLogListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Removes the given CutLog listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeCutLogListeners

public void removeCutLogListeners()
                           throws XPRSexception

Remove all listeners for the CutLog callback

Throws:: XPRSexception

addBarLogListener
```
public void addBarLogListener(XPRSbarLogListener listener)
                       throws XPRSexception
```
Add a listener for the BarLog callback. Note that an object can have multiple BarLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarLog listeners will be removed.)

Throws:

XPRSexception

addBarLogListener
```
public void addBarLogListener(XPRSbarLogListener listener,
                              java.lang.Object data)
                       throws XPRSexception
```
Add a listener for the BarLog callback. Note that an object can have multiple BarLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addBarLogListener
```
public void addBarLogListener(XPRSbarLogListener listener,
                              int priority)
                       throws XPRSexception
```
Add a listener for the BarLog callback. Note that an object can have multiple BarLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarLog listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addBarLogListener
```
public void addBarLogListener(XPRSbarLogListener listener,
                              java.lang.Object data,
                              int priority)
                       throws XPRSexception
```
Add a listener for the BarLog callback. Note that an object can have multiple BarLog listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarLog listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeBarLogListener
```
public void removeBarLogListener(XPRSbarLogListener listener)
                          throws XPRSexception
```
Removes the given BarLog listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeBarLogListener
```
public void removeBarLogListener(XPRSbarLogListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Removes the given BarLog listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeBarLogListeners

public void removeBarLogListeners()
                           throws XPRSexception

Remove all listeners for the BarLog callback

Throws:: XPRSexception

addOptNodeListener
```
public void addOptNodeListener(XPRSoptNodeListener listener)
                        throws XPRSexception
```
Add a listener for the OptNode callback. Note that an object can have multiple OptNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all OptNode listeners will be removed.)

Throws:

XPRSexception

addOptNodeListener
```
public void addOptNodeListener(XPRSoptNodeListener listener,
                               java.lang.Object data)
                        throws XPRSexception
```
Add a listener for the OptNode callback. Note that an object can have multiple OptNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all OptNode listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addOptNodeListener
```
public void addOptNodeListener(XPRSoptNodeListener listener,
                               int priority)
                        throws XPRSexception
```
Add a listener for the OptNode callback. Note that an object can have multiple OptNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all OptNode listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addOptNodeListener
```
public void addOptNodeListener(XPRSoptNodeListener listener,
                               java.lang.Object data,
                               int priority)
                        throws XPRSexception
```
Add a listener for the OptNode callback. Note that an object can have multiple OptNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all OptNode listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeOptNodeListener
```
public void removeOptNodeListener(XPRSoptNodeListener listener)
                           throws XPRSexception
```
Removes the given OptNode listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeOptNodeListener
```
public void removeOptNodeListener(XPRSoptNodeListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Removes the given OptNode listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeOptNodeListeners

public void removeOptNodeListeners()
                            throws XPRSexception

Remove all listeners for the OptNode callback

Throws:: XPRSexception

addPreNodeListener
```
public void addPreNodeListener(XPRSpreNodeListener listener)
                        throws XPRSexception
```
Add a listener for the PreNode callback. Note that an object can have multiple PreNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreNode listeners will be removed.)

Throws:

XPRSexception

addPreNodeListener
```
public void addPreNodeListener(XPRSpreNodeListener listener,
                               java.lang.Object data)
                        throws XPRSexception
```
Add a listener for the PreNode callback. Note that an object can have multiple PreNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreNode listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addPreNodeListener
```
public void addPreNodeListener(XPRSpreNodeListener listener,
                               int priority)
                        throws XPRSexception
```
Add a listener for the PreNode callback. Note that an object can have multiple PreNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreNode listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addPreNodeListener
```
public void addPreNodeListener(XPRSpreNodeListener listener,
                               java.lang.Object data,
                               int priority)
                        throws XPRSexception
```
Add a listener for the PreNode callback. Note that an object can have multiple PreNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreNode listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removePreNodeListener
```
public void removePreNodeListener(XPRSpreNodeListener listener)
                           throws XPRSexception
```
Removes the given PreNode listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removePreNodeListener
```
public void removePreNodeListener(XPRSpreNodeListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Removes the given PreNode listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removePreNodeListeners

public void removePreNodeListeners()
                            throws XPRSexception

Remove all listeners for the PreNode callback

Throws:: XPRSexception

addInfNodeListener
```
public void addInfNodeListener(XPRSinfNodeListener listener)
                        throws XPRSexception
```
Add a listener for the InfNode callback. Note that an object can have multiple InfNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all InfNode listeners will be removed.)

Throws:

XPRSexception

addInfNodeListener
```
public void addInfNodeListener(XPRSinfNodeListener listener,
                               java.lang.Object data)
                        throws XPRSexception
```
Add a listener for the InfNode callback. Note that an object can have multiple InfNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all InfNode listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addInfNodeListener
```
public void addInfNodeListener(XPRSinfNodeListener listener,
                               int priority)
                        throws XPRSexception
```
Add a listener for the InfNode callback. Note that an object can have multiple InfNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all InfNode listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addInfNodeListener
```
public void addInfNodeListener(XPRSinfNodeListener listener,
                               java.lang.Object data,
                               int priority)
                        throws XPRSexception
```
Add a listener for the InfNode callback. Note that an object can have multiple InfNode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all InfNode listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeInfNodeListener
```
public void removeInfNodeListener(XPRSinfNodeListener listener)
                           throws XPRSexception
```
Removes the given InfNode listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeInfNodeListener
```
public void removeInfNodeListener(XPRSinfNodeListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Removes the given InfNode listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeInfNodeListeners

public void removeInfNodeListeners()
                            throws XPRSexception

Remove all listeners for the InfNode callback

Throws:: XPRSexception

addNodeCutoffListener
```
public void addNodeCutoffListener(XPRSnodeCutoffListener listener)
                           throws XPRSexception
```
Add a listener for the NodeCutoff callback. Note that an object can have multiple NodeCutoff listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeCutoff listeners will be removed.)

Throws:

XPRSexception

addNodeCutoffListener
```
public void addNodeCutoffListener(XPRSnodeCutoffListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Add a listener for the NodeCutoff callback. Note that an object can have multiple NodeCutoff listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeCutoff listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addNodeCutoffListener
```
public void addNodeCutoffListener(XPRSnodeCutoffListener listener,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the NodeCutoff callback. Note that an object can have multiple NodeCutoff listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeCutoff listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addNodeCutoffListener
```
public void addNodeCutoffListener(XPRSnodeCutoffListener listener,
                                  java.lang.Object data,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the NodeCutoff callback. Note that an object can have multiple NodeCutoff listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeCutoff listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeNodeCutoffListener
```
public void removeNodeCutoffListener(XPRSnodeCutoffListener listener)
                              throws XPRSexception
```
Removes the given NodeCutoff listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeNodeCutoffListener
```
public void removeNodeCutoffListener(XPRSnodeCutoffListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Removes the given NodeCutoff listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeNodeCutoffListeners

public void removeNodeCutoffListeners()
                               throws XPRSexception

Remove all listeners for the NodeCutoff callback

Throws:: XPRSexception

addIntSolListener
```
public void addIntSolListener(XPRSintSolListener listener)
                       throws XPRSexception
```
Add a listener for the IntSol callback. Note that an object can have multiple IntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all IntSol listeners will be removed.)

Throws:

XPRSexception

addIntSolListener
```
public void addIntSolListener(XPRSintSolListener listener,
                              java.lang.Object data)
                       throws XPRSexception
```
Add a listener for the IntSol callback. Note that an object can have multiple IntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all IntSol listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addIntSolListener
```
public void addIntSolListener(XPRSintSolListener listener,
                              int priority)
                       throws XPRSexception
```
Add a listener for the IntSol callback. Note that an object can have multiple IntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all IntSol listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addIntSolListener
```
public void addIntSolListener(XPRSintSolListener listener,
                              java.lang.Object data,
                              int priority)
                       throws XPRSexception
```
Add a listener for the IntSol callback. Note that an object can have multiple IntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all IntSol listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeIntSolListener
```
public void removeIntSolListener(XPRSintSolListener listener)
                          throws XPRSexception
```
Removes the given IntSol listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeIntSolListener
```
public void removeIntSolListener(XPRSintSolListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Removes the given IntSol listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeIntSolListeners

public void removeIntSolListeners()
                           throws XPRSexception

Remove all listeners for the IntSol callback

Throws:: XPRSexception

addPreIntsolListener
```
public void addPreIntsolListener(XPRSpreIntsolListener listener)
                          throws XPRSexception
```
Add a listener for the PreIntsol callback. Note that an object can have multiple PreIntsol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreIntsol listeners will be removed.)

Throws:

XPRSexception

addPreIntsolListener
```
public void addPreIntsolListener(XPRSpreIntsolListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Add a listener for the PreIntsol callback. Note that an object can have multiple PreIntsol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreIntsol listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addPreIntsolListener
```
public void addPreIntsolListener(XPRSpreIntsolListener listener,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the PreIntsol callback. Note that an object can have multiple PreIntsol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreIntsol listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addPreIntsolListener
```
public void addPreIntsolListener(XPRSpreIntsolListener listener,
                                 java.lang.Object data,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the PreIntsol callback. Note that an object can have multiple PreIntsol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all PreIntsol listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removePreIntsolListener
```
public void removePreIntsolListener(XPRSpreIntsolListener listener)
                             throws XPRSexception
```
Removes the given PreIntsol listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removePreIntsolListener
```
public void removePreIntsolListener(XPRSpreIntsolListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Removes the given PreIntsol listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removePreIntsolListeners

public void removePreIntsolListeners()
                              throws XPRSexception

Remove all listeners for the PreIntsol callback

Throws:: XPRSexception

addMessageListener
```
public void addMessageListener(XPRSmessageListener listener)
                        throws XPRSexception
```
Add a listener for the Message callback. Note that an object can have multiple Message listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Message listeners will be removed.)

Throws:

XPRSexception

addMessageListener
```
public void addMessageListener(XPRSmessageListener listener,
                               java.lang.Object data)
                        throws XPRSexception
```
Add a listener for the Message callback. Note that an object can have multiple Message listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Message listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addMessageListener
```
public void addMessageListener(XPRSmessageListener listener,
                               int priority)
                        throws XPRSexception
```
Add a listener for the Message callback. Note that an object can have multiple Message listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Message listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addMessageListener
```
public void addMessageListener(XPRSmessageListener listener,
                               java.lang.Object data,
                               int priority)
                        throws XPRSexception
```
Add a listener for the Message callback. Note that an object can have multiple Message listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Message listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeMessageListener
```
public void removeMessageListener(XPRSmessageListener listener)
                           throws XPRSexception
```
Removes the given Message listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeMessageListener
```
public void removeMessageListener(XPRSmessageListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Removes the given Message listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeMessageListeners

public void removeMessageListeners()
                            throws XPRSexception

Remove all listeners for the Message callback

Throws:: XPRSexception

addMipThreadListener
```
public void addMipThreadListener(XPRSmipThreadListener listener)
                          throws XPRSexception
```
Add a listener for the MipThread callback. Note that an object can have multiple MipThread listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipThread listeners will be removed.)

Throws:

XPRSexception

addMipThreadListener
```
public void addMipThreadListener(XPRSmipThreadListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Add a listener for the MipThread callback. Note that an object can have multiple MipThread listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipThread listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addMipThreadListener
```
public void addMipThreadListener(XPRSmipThreadListener listener,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the MipThread callback. Note that an object can have multiple MipThread listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipThread listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addMipThreadListener
```
public void addMipThreadListener(XPRSmipThreadListener listener,
                                 java.lang.Object data,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the MipThread callback. Note that an object can have multiple MipThread listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MipThread listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeMipThreadListener
```
public void removeMipThreadListener(XPRSmipThreadListener listener)
                             throws XPRSexception
```
Removes the given MipThread listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeMipThreadListener
```
public void removeMipThreadListener(XPRSmipThreadListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Removes the given MipThread listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeMipThreadListeners

public void removeMipThreadListeners()
                              throws XPRSexception

Remove all listeners for the MipThread callback

Throws:: XPRSexception

addDestroyMTListener
```
public void addDestroyMTListener(XPRSdestroyMTListener listener)
                          throws XPRSexception
```
Add a listener for the DestroyMT callback. Note that an object can have multiple DestroyMT listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all DestroyMT listeners will be removed.)

Throws:

XPRSexception

addDestroyMTListener
```
public void addDestroyMTListener(XPRSdestroyMTListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Add a listener for the DestroyMT callback. Note that an object can have multiple DestroyMT listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all DestroyMT listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addDestroyMTListener
```
public void addDestroyMTListener(XPRSdestroyMTListener listener,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the DestroyMT callback. Note that an object can have multiple DestroyMT listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all DestroyMT listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addDestroyMTListener
```
public void addDestroyMTListener(XPRSdestroyMTListener listener,
                                 java.lang.Object data,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the DestroyMT callback. Note that an object can have multiple DestroyMT listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all DestroyMT listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeDestroyMTListener
```
public void removeDestroyMTListener(XPRSdestroyMTListener listener)
                             throws XPRSexception
```
Removes the given DestroyMT listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeDestroyMTListener
```
public void removeDestroyMTListener(XPRSdestroyMTListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Removes the given DestroyMT listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeDestroyMTListeners

public void removeDestroyMTListeners()
                              throws XPRSexception

Remove all listeners for the DestroyMT callback

Throws:: XPRSexception

addNewnodeListener
```
public void addNewnodeListener(XPRSnewnodeListener listener)
                        throws XPRSexception
```
Add a listener for the Newnode callback. Note that an object can have multiple Newnode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Newnode listeners will be removed.)

Throws:

XPRSexception

addNewnodeListener
```
public void addNewnodeListener(XPRSnewnodeListener listener,
                               java.lang.Object data)
                        throws XPRSexception
```
Add a listener for the Newnode callback. Note that an object can have multiple Newnode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Newnode listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addNewnodeListener
```
public void addNewnodeListener(XPRSnewnodeListener listener,
                               int priority)
                        throws XPRSexception
```
Add a listener for the Newnode callback. Note that an object can have multiple Newnode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Newnode listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addNewnodeListener
```
public void addNewnodeListener(XPRSnewnodeListener listener,
                               java.lang.Object data,
                               int priority)
                        throws XPRSexception
```
Add a listener for the Newnode callback. Note that an object can have multiple Newnode listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Newnode listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeNewnodeListener
```
public void removeNewnodeListener(XPRSnewnodeListener listener)
                           throws XPRSexception
```
Removes the given Newnode listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeNewnodeListener
```
public void removeNewnodeListener(XPRSnewnodeListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Removes the given Newnode listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeNewnodeListeners

public void removeNewnodeListeners()
                            throws XPRSexception

Remove all listeners for the Newnode callback

Throws:: XPRSexception

addBarIterationListener
```
public void addBarIterationListener(XPRSbarIterationListener listener)
                             throws XPRSexception
```
Add a listener for the BarIteration callback. Note that an object can have multiple BarIteration listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarIteration listeners will be removed.)

Throws:

XPRSexception

addBarIterationListener
```
public void addBarIterationListener(XPRSbarIterationListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Add a listener for the BarIteration callback. Note that an object can have multiple BarIteration listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarIteration listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addBarIterationListener
```
public void addBarIterationListener(XPRSbarIterationListener listener,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the BarIteration callback. Note that an object can have multiple BarIteration listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarIteration listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addBarIterationListener
```
public void addBarIterationListener(XPRSbarIterationListener listener,
                                    java.lang.Object data,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the BarIteration callback. Note that an object can have multiple BarIteration listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BarIteration listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeBarIterationListener
```
public void removeBarIterationListener(XPRSbarIterationListener listener)
                                throws XPRSexception
```
Removes the given BarIteration listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeBarIterationListener
```
public void removeBarIterationListener(XPRSbarIterationListener listener,
                                       java.lang.Object data)
                                throws XPRSexception
```
Removes the given BarIteration listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeBarIterationListeners

public void removeBarIterationListeners()
                                 throws XPRSexception

Remove all listeners for the BarIteration callback

Throws:: XPRSexception

addPresolveListener
```
public void addPresolveListener(XPRSpresolveListener listener)
                         throws XPRSexception
```
Add a listener for the Presolve callback. Note that an object can have multiple Presolve listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Presolve listeners will be removed.)

Throws:

XPRSexception

addPresolveListener
```
public void addPresolveListener(XPRSpresolveListener listener,
                                java.lang.Object data)
                         throws XPRSexception
```
Add a listener for the Presolve callback. Note that an object can have multiple Presolve listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Presolve listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addPresolveListener
```
public void addPresolveListener(XPRSpresolveListener listener,
                                int priority)
                         throws XPRSexception
```
Add a listener for the Presolve callback. Note that an object can have multiple Presolve listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Presolve listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addPresolveListener
```
public void addPresolveListener(XPRSpresolveListener listener,
                                java.lang.Object data,
                                int priority)
                         throws XPRSexception
```
Add a listener for the Presolve callback. Note that an object can have multiple Presolve listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all Presolve listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removePresolveListener
```
public void removePresolveListener(XPRSpresolveListener listener)
                            throws XPRSexception
```
Removes the given Presolve listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removePresolveListener
```
public void removePresolveListener(XPRSpresolveListener listener,
                                   java.lang.Object data)
                            throws XPRSexception
```
Removes the given Presolve listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removePresolveListeners

public void removePresolveListeners()
                             throws XPRSexception

Remove all listeners for the Presolve callback

Throws:: XPRSexception

addChangeBranchObjectListener
```
public void addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener)
                                   throws XPRSexception
```
Add a listener for the ChangeBranchObject callback. Note that an object can have multiple ChangeBranchObject listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ChangeBranchObject listeners will be removed.)

Throws:

XPRSexception

addChangeBranchObjectListener
```
public void addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener,
                                          java.lang.Object data)
                                   throws XPRSexception
```
Add a listener for the ChangeBranchObject callback. Note that an object can have multiple ChangeBranchObject listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ChangeBranchObject listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addChangeBranchObjectListener
```
public void addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener,
                                          int priority)
                                   throws XPRSexception
```
Add a listener for the ChangeBranchObject callback. Note that an object can have multiple ChangeBranchObject listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ChangeBranchObject listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addChangeBranchObjectListener
```
public void addChangeBranchObjectListener(XPRSchangeBranchObjectListener listener,
                                          java.lang.Object data,
                                          int priority)
                                   throws XPRSexception
```
Add a listener for the ChangeBranchObject callback. Note that an object can have multiple ChangeBranchObject listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ChangeBranchObject listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeChangeBranchObjectListener
```
public void removeChangeBranchObjectListener(XPRSchangeBranchObjectListener listener)
                                      throws XPRSexception
```
Removes the given ChangeBranchObject listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeChangeBranchObjectListener

public void removeChangeBranchObjectListener(XPRSchangeBranchObjectListener listener,
                                             java.lang.Object data)
                                      throws XPRSexception

Removes the given ChangeBranchObject listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeChangeBranchObjectListeners

public void removeChangeBranchObjectListeners()
                                       throws XPRSexception

Remove all listeners for the ChangeBranchObject callback

Throws:: XPRSexception

addComputeRestartListener
```
public void addComputeRestartListener(XPRScomputeRestartListener listener)
                               throws XPRSexception
```
Add a listener for the ComputeRestart callback. Note that an object can have multiple ComputeRestart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ComputeRestart listeners will be removed.)

Throws:

XPRSexception

addComputeRestartListener
```
public void addComputeRestartListener(XPRScomputeRestartListener listener,
                                      java.lang.Object data)
                               throws XPRSexception
```
Add a listener for the ComputeRestart callback. Note that an object can have multiple ComputeRestart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ComputeRestart listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addComputeRestartListener
```
public void addComputeRestartListener(XPRScomputeRestartListener listener,
                                      int priority)
                               throws XPRSexception
```
Add a listener for the ComputeRestart callback. Note that an object can have multiple ComputeRestart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ComputeRestart listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addComputeRestartListener
```
public void addComputeRestartListener(XPRScomputeRestartListener listener,
                                      java.lang.Object data,
                                      int priority)
                               throws XPRSexception
```
Add a listener for the ComputeRestart callback. Note that an object can have multiple ComputeRestart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all ComputeRestart listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeComputeRestartListener
```
public void removeComputeRestartListener(XPRScomputeRestartListener listener)
                                  throws XPRSexception
```
Removes the given ComputeRestart listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeComputeRestartListener

public void removeComputeRestartListener(XPRScomputeRestartListener listener,
                                         java.lang.Object data)
                                  throws XPRSexception

Removes the given ComputeRestart listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeComputeRestartListeners

public void removeComputeRestartListeners()
                                   throws XPRSexception

Remove all listeners for the ComputeRestart callback

Throws:: XPRSexception

addNodeLPSolvedListener
```
public void addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener)
                             throws XPRSexception
```
Add a listener for the NodeLPSolved callback. Note that an object can have multiple NodeLPSolved listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeLPSolved listeners will be removed.)

Throws:

XPRSexception

addNodeLPSolvedListener
```
public void addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Add a listener for the NodeLPSolved callback. Note that an object can have multiple NodeLPSolved listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeLPSolved listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addNodeLPSolvedListener
```
public void addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the NodeLPSolved callback. Note that an object can have multiple NodeLPSolved listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeLPSolved listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addNodeLPSolvedListener
```
public void addNodeLPSolvedListener(XPRSnodeLPSolvedListener listener,
                                    java.lang.Object data,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the NodeLPSolved callback. Note that an object can have multiple NodeLPSolved listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NodeLPSolved listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeNodeLPSolvedListener
```
public void removeNodeLPSolvedListener(XPRSnodeLPSolvedListener listener)
                                throws XPRSexception
```
Removes the given NodeLPSolved listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeNodeLPSolvedListener
```
public void removeNodeLPSolvedListener(XPRSnodeLPSolvedListener listener,
                                       java.lang.Object data)
                                throws XPRSexception
```
Removes the given NodeLPSolved listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeNodeLPSolvedListeners

public void removeNodeLPSolvedListeners()
                                 throws XPRSexception

Remove all listeners for the NodeLPSolved callback

Throws:: XPRSexception

addGapNotifyListener
```
public void addGapNotifyListener(XPRSgapNotifyListener listener)
                          throws XPRSexception
```
Add a listener for the GapNotify callback. Note that an object can have multiple GapNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all GapNotify listeners will be removed.)

Throws:

XPRSexception

addGapNotifyListener
```
public void addGapNotifyListener(XPRSgapNotifyListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Add a listener for the GapNotify callback. Note that an object can have multiple GapNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all GapNotify listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addGapNotifyListener
```
public void addGapNotifyListener(XPRSgapNotifyListener listener,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the GapNotify callback. Note that an object can have multiple GapNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all GapNotify listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addGapNotifyListener
```
public void addGapNotifyListener(XPRSgapNotifyListener listener,
                                 java.lang.Object data,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the GapNotify callback. Note that an object can have multiple GapNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all GapNotify listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeGapNotifyListener
```
public void removeGapNotifyListener(XPRSgapNotifyListener listener)
                             throws XPRSexception
```
Removes the given GapNotify listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeGapNotifyListener
```
public void removeGapNotifyListener(XPRSgapNotifyListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Removes the given GapNotify listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeGapNotifyListeners

public void removeGapNotifyListeners()
                              throws XPRSexception

Remove all listeners for the GapNotify callback

Throws:: XPRSexception

addUserSolNotifyListener
```
public void addUserSolNotifyListener(XPRSuserSolNotifyListener listener)
                              throws XPRSexception
```
Add a listener for the UserSolNotify callback. Note that an object can have multiple UserSolNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all UserSolNotify listeners will be removed.)

Throws:

XPRSexception

addUserSolNotifyListener
```
public void addUserSolNotifyListener(XPRSuserSolNotifyListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Add a listener for the UserSolNotify callback. Note that an object can have multiple UserSolNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all UserSolNotify listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addUserSolNotifyListener
```
public void addUserSolNotifyListener(XPRSuserSolNotifyListener listener,
                                     int priority)
                              throws XPRSexception
```
Add a listener for the UserSolNotify callback. Note that an object can have multiple UserSolNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all UserSolNotify listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addUserSolNotifyListener
```
public void addUserSolNotifyListener(XPRSuserSolNotifyListener listener,
                                     java.lang.Object data,
                                     int priority)
                              throws XPRSexception
```
Add a listener for the UserSolNotify callback. Note that an object can have multiple UserSolNotify listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all UserSolNotify listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeUserSolNotifyListener
```
public void removeUserSolNotifyListener(XPRSuserSolNotifyListener listener)
                                 throws XPRSexception
```
Removes the given UserSolNotify listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeUserSolNotifyListener
```
public void removeUserSolNotifyListener(XPRSuserSolNotifyListener listener,
                                        java.lang.Object data)
                                 throws XPRSexception
```
Removes the given UserSolNotify listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeUserSolNotifyListeners

public void removeUserSolNotifyListeners()
                                  throws XPRSexception

Remove all listeners for the UserSolNotify callback

Throws:: XPRSexception

addBeforeObjectiveListener
```
public void addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener)
                                throws XPRSexception
```
Add a listener for the BeforeObjective callback. Note that an object can have multiple BeforeObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BeforeObjective listeners will be removed.)

Throws:

XPRSexception

addBeforeObjectiveListener
```
public void addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener,
                                       java.lang.Object data)
                                throws XPRSexception
```
Add a listener for the BeforeObjective callback. Note that an object can have multiple BeforeObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BeforeObjective listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addBeforeObjectiveListener
```
public void addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener,
                                       int priority)
                                throws XPRSexception
```
Add a listener for the BeforeObjective callback. Note that an object can have multiple BeforeObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BeforeObjective listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addBeforeObjectiveListener
```
public void addBeforeObjectiveListener(XPRSbeforeObjectiveListener listener,
                                       java.lang.Object data,
                                       int priority)
                                throws XPRSexception
```
Add a listener for the BeforeObjective callback. Note that an object can have multiple BeforeObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all BeforeObjective listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeBeforeObjectiveListener
```
public void removeBeforeObjectiveListener(XPRSbeforeObjectiveListener listener)
                                   throws XPRSexception
```
Removes the given BeforeObjective listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeBeforeObjectiveListener

public void removeBeforeObjectiveListener(XPRSbeforeObjectiveListener listener,
                                          java.lang.Object data)
                                   throws XPRSexception

Removes the given BeforeObjective listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeBeforeObjectiveListeners

public void removeBeforeObjectiveListeners()
                                    throws XPRSexception

Remove all listeners for the BeforeObjective callback

Throws:: XPRSexception

addAfterObjectiveListener
```
public void addAfterObjectiveListener(XPRSafterObjectiveListener listener)
                               throws XPRSexception
```
Add a listener for the AfterObjective callback. Note that an object can have multiple AfterObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all AfterObjective listeners will be removed.)

Throws:

XPRSexception

addAfterObjectiveListener
```
public void addAfterObjectiveListener(XPRSafterObjectiveListener listener,
                                      java.lang.Object data)
                               throws XPRSexception
```
Add a listener for the AfterObjective callback. Note that an object can have multiple AfterObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all AfterObjective listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addAfterObjectiveListener
```
public void addAfterObjectiveListener(XPRSafterObjectiveListener listener,
                                      int priority)
                               throws XPRSexception
```
Add a listener for the AfterObjective callback. Note that an object can have multiple AfterObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all AfterObjective listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addAfterObjectiveListener
```
public void addAfterObjectiveListener(XPRSafterObjectiveListener listener,
                                      java.lang.Object data,
                                      int priority)
                               throws XPRSexception
```
Add a listener for the AfterObjective callback. Note that an object can have multiple AfterObjective listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all AfterObjective listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeAfterObjectiveListener
```
public void removeAfterObjectiveListener(XPRSafterObjectiveListener listener)
                                  throws XPRSexception
```
Removes the given AfterObjective listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeAfterObjectiveListener

public void removeAfterObjectiveListener(XPRSafterObjectiveListener listener,
                                         java.lang.Object data)
                                  throws XPRSexception

Removes the given AfterObjective listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeAfterObjectiveListeners

public void removeAfterObjectiveListeners()
                                   throws XPRSexception

Remove all listeners for the AfterObjective callback

Throws:: XPRSexception

addCheckTimeListener
```
public void addCheckTimeListener(XPRScheckTimeListener listener)
                          throws XPRSexception
```
Add a listener for the CheckTime callback. Note that an object can have multiple CheckTime listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CheckTime listeners will be removed.)

Throws:

XPRSexception

addCheckTimeListener
```
public void addCheckTimeListener(XPRScheckTimeListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Add a listener for the CheckTime callback. Note that an object can have multiple CheckTime listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CheckTime listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addCheckTimeListener
```
public void addCheckTimeListener(XPRScheckTimeListener listener,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the CheckTime callback. Note that an object can have multiple CheckTime listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CheckTime listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addCheckTimeListener
```
public void addCheckTimeListener(XPRScheckTimeListener listener,
                                 java.lang.Object data,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the CheckTime callback. Note that an object can have multiple CheckTime listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CheckTime listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeCheckTimeListener
```
public void removeCheckTimeListener(XPRScheckTimeListener listener)
                             throws XPRSexception
```
Removes the given CheckTime listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeCheckTimeListener
```
public void removeCheckTimeListener(XPRScheckTimeListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Removes the given CheckTime listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeCheckTimeListeners

public void removeCheckTimeListeners()
                              throws XPRSexception

Remove all listeners for the CheckTime callback

Throws:: XPRSexception

addCutRoundListener
```
public void addCutRoundListener(XPRScutRoundListener listener)
                         throws XPRSexception
```
Add a listener for the CutRound callback. Note that an object can have multiple CutRound listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutRound listeners will be removed.)

Throws:

XPRSexception

addCutRoundListener
```
public void addCutRoundListener(XPRScutRoundListener listener,
                                java.lang.Object data)
                         throws XPRSexception
```
Add a listener for the CutRound callback. Note that an object can have multiple CutRound listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutRound listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addCutRoundListener
```
public void addCutRoundListener(XPRScutRoundListener listener,
                                int priority)
                         throws XPRSexception
```
Add a listener for the CutRound callback. Note that an object can have multiple CutRound listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutRound listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addCutRoundListener
```
public void addCutRoundListener(XPRScutRoundListener listener,
                                java.lang.Object data,
                                int priority)
                         throws XPRSexception
```
Add a listener for the CutRound callback. Note that an object can have multiple CutRound listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all CutRound listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeCutRoundListener
```
public void removeCutRoundListener(XPRScutRoundListener listener)
                            throws XPRSexception
```
Removes the given CutRound listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeCutRoundListener
```
public void removeCutRoundListener(XPRScutRoundListener listener,
                                   java.lang.Object data)
                            throws XPRSexception
```
Removes the given CutRound listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeCutRoundListeners

public void removeCutRoundListeners()
                             throws XPRSexception

Remove all listeners for the CutRound callback

Throws:: XPRSexception

addSlpCascadeEndListener
```
public void addSlpCascadeEndListener(XPRSslpCascadeEndListener listener)
                              throws XPRSexception
```
Add a listener for the SlpCascadeEnd callback. Note that an object can have multiple SlpCascadeEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeEnd listeners will be removed.)

Throws:

XPRSexception

addSlpCascadeEndListener
```
public void addSlpCascadeEndListener(XPRSslpCascadeEndListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Add a listener for the SlpCascadeEnd callback. Note that an object can have multiple SlpCascadeEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeEnd listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpCascadeEndListener
```
public void addSlpCascadeEndListener(XPRSslpCascadeEndListener listener,
                                     int priority)
                              throws XPRSexception
```
Add a listener for the SlpCascadeEnd callback. Note that an object can have multiple SlpCascadeEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeEnd listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpCascadeEndListener
```
public void addSlpCascadeEndListener(XPRSslpCascadeEndListener listener,
                                     java.lang.Object data,
                                     int priority)
                              throws XPRSexception
```
Add a listener for the SlpCascadeEnd callback. Note that an object can have multiple SlpCascadeEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeEnd listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpCascadeEndListener
```
public void removeSlpCascadeEndListener(XPRSslpCascadeEndListener listener)
                                 throws XPRSexception
```
Removes the given SlpCascadeEnd listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpCascadeEndListener
```
public void removeSlpCascadeEndListener(XPRSslpCascadeEndListener listener,
                                        java.lang.Object data)
                                 throws XPRSexception
```
Removes the given SlpCascadeEnd listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpCascadeEndListeners

public void removeSlpCascadeEndListeners()
                                  throws XPRSexception

Remove all listeners for the SlpCascadeEnd callback

Throws:: XPRSexception

addSlpCascadeStartListener
```
public void addSlpCascadeStartListener(XPRSslpCascadeStartListener listener)
                                throws XPRSexception
```
Add a listener for the SlpCascadeStart callback. Note that an object can have multiple SlpCascadeStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeStart listeners will be removed.)

Throws:

XPRSexception

addSlpCascadeStartListener
```
public void addSlpCascadeStartListener(XPRSslpCascadeStartListener listener,
                                       java.lang.Object data)
                                throws XPRSexception
```
Add a listener for the SlpCascadeStart callback. Note that an object can have multiple SlpCascadeStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeStart listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpCascadeStartListener
```
public void addSlpCascadeStartListener(XPRSslpCascadeStartListener listener,
                                       int priority)
                                throws XPRSexception
```
Add a listener for the SlpCascadeStart callback. Note that an object can have multiple SlpCascadeStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeStart listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpCascadeStartListener
```
public void addSlpCascadeStartListener(XPRSslpCascadeStartListener listener,
                                       java.lang.Object data,
                                       int priority)
                                throws XPRSexception
```
Add a listener for the SlpCascadeStart callback. Note that an object can have multiple SlpCascadeStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeStart listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpCascadeStartListener
```
public void removeSlpCascadeStartListener(XPRSslpCascadeStartListener listener)
                                   throws XPRSexception
```
Removes the given SlpCascadeStart listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpCascadeStartListener

public void removeSlpCascadeStartListener(XPRSslpCascadeStartListener listener,
                                          java.lang.Object data)
                                   throws XPRSexception

Removes the given SlpCascadeStart listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeSlpCascadeStartListeners

public void removeSlpCascadeStartListeners()
                                    throws XPRSexception

Remove all listeners for the SlpCascadeStart callback

Throws:: XPRSexception

addSlpCascadeVarListener
```
public void addSlpCascadeVarListener(XPRSslpCascadeVarListener listener)
                              throws XPRSexception
```
Add a listener for the SlpCascadeVar callback. Note that an object can have multiple SlpCascadeVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVar listeners will be removed.)

Throws:

XPRSexception

addSlpCascadeVarListener
```
public void addSlpCascadeVarListener(XPRSslpCascadeVarListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Add a listener for the SlpCascadeVar callback. Note that an object can have multiple SlpCascadeVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVar listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpCascadeVarListener
```
public void addSlpCascadeVarListener(XPRSslpCascadeVarListener listener,
                                     int priority)
                              throws XPRSexception
```
Add a listener for the SlpCascadeVar callback. Note that an object can have multiple SlpCascadeVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVar listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpCascadeVarListener
```
public void addSlpCascadeVarListener(XPRSslpCascadeVarListener listener,
                                     java.lang.Object data,
                                     int priority)
                              throws XPRSexception
```
Add a listener for the SlpCascadeVar callback. Note that an object can have multiple SlpCascadeVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVar listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpCascadeVarListener
```
public void removeSlpCascadeVarListener(XPRSslpCascadeVarListener listener)
                                 throws XPRSexception
```
Removes the given SlpCascadeVar listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpCascadeVarListener
```
public void removeSlpCascadeVarListener(XPRSslpCascadeVarListener listener,
                                        java.lang.Object data)
                                 throws XPRSexception
```
Removes the given SlpCascadeVar listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpCascadeVarListeners

public void removeSlpCascadeVarListeners()
                                  throws XPRSexception

Remove all listeners for the SlpCascadeVar callback

Throws:: XPRSexception

addSlpCascadeVarFailListener
```
public void addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener)
                                  throws XPRSexception
```
Add a listener for the SlpCascadeVarFail callback. Note that an object can have multiple SlpCascadeVarFail listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVarFail listeners will be removed.)

Throws:

XPRSexception

addSlpCascadeVarFailListener
```
public void addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener,
                                         java.lang.Object data)
                                  throws XPRSexception
```
Add a listener for the SlpCascadeVarFail callback. Note that an object can have multiple SlpCascadeVarFail listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVarFail listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpCascadeVarFailListener
```
public void addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener,
                                         int priority)
                                  throws XPRSexception
```
Add a listener for the SlpCascadeVarFail callback. Note that an object can have multiple SlpCascadeVarFail listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVarFail listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpCascadeVarFailListener
```
public void addSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener,
                                         java.lang.Object data,
                                         int priority)
                                  throws XPRSexception
```
Add a listener for the SlpCascadeVarFail callback. Note that an object can have multiple SlpCascadeVarFail listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpCascadeVarFail listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpCascadeVarFailListener
```
public void removeSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener)
                                     throws XPRSexception
```
Removes the given SlpCascadeVarFail listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpCascadeVarFailListener

public void removeSlpCascadeVarFailListener(XPRSslpCascadeVarFailListener listener,
                                            java.lang.Object data)
                                     throws XPRSexception

Removes the given SlpCascadeVarFail listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeSlpCascadeVarFailListeners

public void removeSlpCascadeVarFailListeners()
                                      throws XPRSexception

Remove all listeners for the SlpCascadeVarFail callback

Throws:: XPRSexception

addSlpConstructListener
```
public void addSlpConstructListener(XPRSslpConstructListener listener)
                             throws XPRSexception
```
Add a listener for the SlpConstruct callback. Note that an object can have multiple SlpConstruct listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpConstruct listeners will be removed.)

Throws:

XPRSexception

addSlpConstructListener
```
public void addSlpConstructListener(XPRSslpConstructListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Add a listener for the SlpConstruct callback. Note that an object can have multiple SlpConstruct listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpConstruct listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpConstructListener
```
public void addSlpConstructListener(XPRSslpConstructListener listener,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the SlpConstruct callback. Note that an object can have multiple SlpConstruct listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpConstruct listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpConstructListener
```
public void addSlpConstructListener(XPRSslpConstructListener listener,
                                    java.lang.Object data,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the SlpConstruct callback. Note that an object can have multiple SlpConstruct listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpConstruct listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpConstructListener
```
public void removeSlpConstructListener(XPRSslpConstructListener listener)
                                throws XPRSexception
```
Removes the given SlpConstruct listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpConstructListener
```
public void removeSlpConstructListener(XPRSslpConstructListener listener,
                                       java.lang.Object data)
                                throws XPRSexception
```
Removes the given SlpConstruct listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpConstructListeners

public void removeSlpConstructListeners()
                                 throws XPRSexception

Remove all listeners for the SlpConstruct callback

Throws:: XPRSexception

addSlpIntSolListener
```
public void addSlpIntSolListener(XPRSslpIntSolListener listener)
                          throws XPRSexception
```
Add a listener for the SlpIntSol callback. Note that an object can have multiple SlpIntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIntSol listeners will be removed.)

Throws:

XPRSexception

addSlpIntSolListener
```
public void addSlpIntSolListener(XPRSslpIntSolListener listener,
                                 java.lang.Object data)
                          throws XPRSexception
```
Add a listener for the SlpIntSol callback. Note that an object can have multiple SlpIntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIntSol listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpIntSolListener
```
public void addSlpIntSolListener(XPRSslpIntSolListener listener,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the SlpIntSol callback. Note that an object can have multiple SlpIntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIntSol listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpIntSolListener
```
public void addSlpIntSolListener(XPRSslpIntSolListener listener,
                                 java.lang.Object data,
                                 int priority)
                          throws XPRSexception
```
Add a listener for the SlpIntSol callback. Note that an object can have multiple SlpIntSol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIntSol listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpIntSolListener
```
public void removeSlpIntSolListener(XPRSslpIntSolListener listener)
                             throws XPRSexception
```
Removes the given SlpIntSol listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpIntSolListener
```
public void removeSlpIntSolListener(XPRSslpIntSolListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Removes the given SlpIntSol listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpIntSolListeners

public void removeSlpIntSolListeners()
                              throws XPRSexception

Remove all listeners for the SlpIntSol callback

Throws:: XPRSexception

addSlpIterEndListener
```
public void addSlpIterEndListener(XPRSslpIterEndListener listener)
                           throws XPRSexception
```
Add a listener for the SlpIterEnd callback. Note that an object can have multiple SlpIterEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterEnd listeners will be removed.)

Throws:

XPRSexception

addSlpIterEndListener
```
public void addSlpIterEndListener(XPRSslpIterEndListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Add a listener for the SlpIterEnd callback. Note that an object can have multiple SlpIterEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterEnd listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpIterEndListener
```
public void addSlpIterEndListener(XPRSslpIterEndListener listener,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the SlpIterEnd callback. Note that an object can have multiple SlpIterEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterEnd listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpIterEndListener
```
public void addSlpIterEndListener(XPRSslpIterEndListener listener,
                                  java.lang.Object data,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the SlpIterEnd callback. Note that an object can have multiple SlpIterEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterEnd listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpIterEndListener
```
public void removeSlpIterEndListener(XPRSslpIterEndListener listener)
                              throws XPRSexception
```
Removes the given SlpIterEnd listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpIterEndListener
```
public void removeSlpIterEndListener(XPRSslpIterEndListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Removes the given SlpIterEnd listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpIterEndListeners

public void removeSlpIterEndListeners()
                               throws XPRSexception

Remove all listeners for the SlpIterEnd callback

Throws:: XPRSexception

addSlpIterStartListener
```
public void addSlpIterStartListener(XPRSslpIterStartListener listener)
                             throws XPRSexception
```
Add a listener for the SlpIterStart callback. Note that an object can have multiple SlpIterStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterStart listeners will be removed.)

Throws:

XPRSexception

addSlpIterStartListener
```
public void addSlpIterStartListener(XPRSslpIterStartListener listener,
                                    java.lang.Object data)
                             throws XPRSexception
```
Add a listener for the SlpIterStart callback. Note that an object can have multiple SlpIterStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterStart listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpIterStartListener
```
public void addSlpIterStartListener(XPRSslpIterStartListener listener,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the SlpIterStart callback. Note that an object can have multiple SlpIterStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterStart listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpIterStartListener
```
public void addSlpIterStartListener(XPRSslpIterStartListener listener,
                                    java.lang.Object data,
                                    int priority)
                             throws XPRSexception
```
Add a listener for the SlpIterStart callback. Note that an object can have multiple SlpIterStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterStart listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpIterStartListener
```
public void removeSlpIterStartListener(XPRSslpIterStartListener listener)
                                throws XPRSexception
```
Removes the given SlpIterStart listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpIterStartListener
```
public void removeSlpIterStartListener(XPRSslpIterStartListener listener,
                                       java.lang.Object data)
                                throws XPRSexception
```
Removes the given SlpIterStart listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpIterStartListeners

public void removeSlpIterStartListeners()
                                 throws XPRSexception

Remove all listeners for the SlpIterStart callback

Throws:: XPRSexception

addSlpIterVarListener
```
public void addSlpIterVarListener(XPRSslpIterVarListener listener)
                           throws XPRSexception
```
Add a listener for the SlpIterVar callback. Note that an object can have multiple SlpIterVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterVar listeners will be removed.)

Throws:

XPRSexception

addSlpIterVarListener
```
public void addSlpIterVarListener(XPRSslpIterVarListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Add a listener for the SlpIterVar callback. Note that an object can have multiple SlpIterVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterVar listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpIterVarListener
```
public void addSlpIterVarListener(XPRSslpIterVarListener listener,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the SlpIterVar callback. Note that an object can have multiple SlpIterVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterVar listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpIterVarListener
```
public void addSlpIterVarListener(XPRSslpIterVarListener listener,
                                  java.lang.Object data,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the SlpIterVar callback. Note that an object can have multiple SlpIterVar listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpIterVar listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpIterVarListener
```
public void removeSlpIterVarListener(XPRSslpIterVarListener listener)
                              throws XPRSexception
```
Removes the given SlpIterVar listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpIterVarListener
```
public void removeSlpIterVarListener(XPRSslpIterVarListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Removes the given SlpIterVar listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpIterVarListeners

public void removeSlpIterVarListeners()
                               throws XPRSexception

Remove all listeners for the SlpIterVar callback

Throws:: XPRSexception

addSlpDrColListener
```
public void addSlpDrColListener(XPRSslpDrColListener listener)
                         throws XPRSexception
```
Add a listener for the SlpDrCol callback. Note that an object can have multiple SlpDrCol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpDrCol listeners will be removed.)

Throws:

XPRSexception

addSlpDrColListener
```
public void addSlpDrColListener(XPRSslpDrColListener listener,
                                java.lang.Object data)
                         throws XPRSexception
```
Add a listener for the SlpDrCol callback. Note that an object can have multiple SlpDrCol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpDrCol listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpDrColListener
```
public void addSlpDrColListener(XPRSslpDrColListener listener,
                                int priority)
                         throws XPRSexception
```
Add a listener for the SlpDrCol callback. Note that an object can have multiple SlpDrCol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpDrCol listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpDrColListener
```
public void addSlpDrColListener(XPRSslpDrColListener listener,
                                java.lang.Object data,
                                int priority)
                         throws XPRSexception
```
Add a listener for the SlpDrCol callback. Note that an object can have multiple SlpDrCol listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpDrCol listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpDrColListener
```
public void removeSlpDrColListener(XPRSslpDrColListener listener)
                            throws XPRSexception
```
Removes the given SlpDrCol listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeSlpDrColListener
```
public void removeSlpDrColListener(XPRSslpDrColListener listener,
                                   java.lang.Object data)
                            throws XPRSexception
```
Removes the given SlpDrCol listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeSlpDrColListeners

public void removeSlpDrColListeners()
                             throws XPRSexception

Remove all listeners for the SlpDrCol callback

Throws:: XPRSexception

addMsJobStartListener
```
public void addMsJobStartListener(XPRSmsJobStartListener listener)
                           throws XPRSexception
```
Add a listener for the MsJobStart callback. Note that an object can have multiple MsJobStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobStart listeners will be removed.)

Throws:

XPRSexception

addMsJobStartListener
```
public void addMsJobStartListener(XPRSmsJobStartListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Add a listener for the MsJobStart callback. Note that an object can have multiple MsJobStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobStart listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addMsJobStartListener
```
public void addMsJobStartListener(XPRSmsJobStartListener listener,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the MsJobStart callback. Note that an object can have multiple MsJobStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobStart listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addMsJobStartListener
```
public void addMsJobStartListener(XPRSmsJobStartListener listener,
                                  java.lang.Object data,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the MsJobStart callback. Note that an object can have multiple MsJobStart listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobStart listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeMsJobStartListener
```
public void removeMsJobStartListener(XPRSmsJobStartListener listener)
                              throws XPRSexception
```
Removes the given MsJobStart listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeMsJobStartListener
```
public void removeMsJobStartListener(XPRSmsJobStartListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Removes the given MsJobStart listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeMsJobStartListeners

public void removeMsJobStartListeners()
                               throws XPRSexception

Remove all listeners for the MsJobStart callback

Throws:: XPRSexception

addMsJobEndListener
```
public void addMsJobEndListener(XPRSmsJobEndListener listener)
                         throws XPRSexception
```
Add a listener for the MsJobEnd callback. Note that an object can have multiple MsJobEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobEnd listeners will be removed.)

Throws:

XPRSexception

addMsJobEndListener
```
public void addMsJobEndListener(XPRSmsJobEndListener listener,
                                java.lang.Object data)
                         throws XPRSexception
```
Add a listener for the MsJobEnd callback. Note that an object can have multiple MsJobEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobEnd listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addMsJobEndListener
```
public void addMsJobEndListener(XPRSmsJobEndListener listener,
                                int priority)
                         throws XPRSexception
```
Add a listener for the MsJobEnd callback. Note that an object can have multiple MsJobEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobEnd listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addMsJobEndListener
```
public void addMsJobEndListener(XPRSmsJobEndListener listener,
                                java.lang.Object data,
                                int priority)
                         throws XPRSexception
```
Add a listener for the MsJobEnd callback. Note that an object can have multiple MsJobEnd listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsJobEnd listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeMsJobEndListener
```
public void removeMsJobEndListener(XPRSmsJobEndListener listener)
                            throws XPRSexception
```
Removes the given MsJobEnd listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeMsJobEndListener
```
public void removeMsJobEndListener(XPRSmsJobEndListener listener,
                                   java.lang.Object data)
                            throws XPRSexception
```
Removes the given MsJobEnd listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeMsJobEndListeners

public void removeMsJobEndListeners()
                             throws XPRSexception

Remove all listeners for the MsJobEnd callback

Throws:: XPRSexception

addMsWinnerListener
```
public void addMsWinnerListener(XPRSmsWinnerListener listener)
                         throws XPRSexception
```
Add a listener for the MsWinner callback. Note that an object can have multiple MsWinner listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsWinner listeners will be removed.)

Throws:

XPRSexception

addMsWinnerListener
```
public void addMsWinnerListener(XPRSmsWinnerListener listener,
                                java.lang.Object data)
                         throws XPRSexception
```
Add a listener for the MsWinner callback. Note that an object can have multiple MsWinner listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsWinner listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addMsWinnerListener
```
public void addMsWinnerListener(XPRSmsWinnerListener listener,
                                int priority)
                         throws XPRSexception
```
Add a listener for the MsWinner callback. Note that an object can have multiple MsWinner listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsWinner listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addMsWinnerListener
```
public void addMsWinnerListener(XPRSmsWinnerListener listener,
                                java.lang.Object data,
                                int priority)
                         throws XPRSexception
```
Add a listener for the MsWinner callback. Note that an object can have multiple MsWinner listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsWinner listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeMsWinnerListener
```
public void removeMsWinnerListener(XPRSmsWinnerListener listener)
                            throws XPRSexception
```
Removes the given MsWinner listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeMsWinnerListener
```
public void removeMsWinnerListener(XPRSmsWinnerListener listener,
                                   java.lang.Object data)
                            throws XPRSexception
```
Removes the given MsWinner listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeMsWinnerListeners

public void removeMsWinnerListeners()
                             throws XPRSexception

Remove all listeners for the MsWinner callback

Throws:: XPRSexception

addNlpCoefEvalErrorListener
```
public void addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener)
                                 throws XPRSexception
```
Add a listener for the NlpCoefEvalError callback. Note that an object can have multiple NlpCoefEvalError listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NlpCoefEvalError listeners will be removed.)

Throws:

XPRSexception

addNlpCoefEvalErrorListener
```
public void addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener,
                                        java.lang.Object data)
                                 throws XPRSexception
```
Add a listener for the NlpCoefEvalError callback. Note that an object can have multiple NlpCoefEvalError listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NlpCoefEvalError listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addNlpCoefEvalErrorListener
```
public void addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener,
                                        int priority)
                                 throws XPRSexception
```
Add a listener for the NlpCoefEvalError callback. Note that an object can have multiple NlpCoefEvalError listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NlpCoefEvalError listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addNlpCoefEvalErrorListener
```
public void addNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener,
                                        java.lang.Object data,
                                        int priority)
                                 throws XPRSexception
```
Add a listener for the NlpCoefEvalError callback. Note that an object can have multiple NlpCoefEvalError listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all NlpCoefEvalError listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeNlpCoefEvalErrorListener
```
public void removeNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener)
                                    throws XPRSexception
```
Removes the given NlpCoefEvalError listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeNlpCoefEvalErrorListener

public void removeNlpCoefEvalErrorListener(XPRSnlpCoefEvalErrorListener listener,
                                           java.lang.Object data)
                                    throws XPRSexception

Removes the given NlpCoefEvalError listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeNlpCoefEvalErrorListeners

public void removeNlpCoefEvalErrorListeners()
                                     throws XPRSexception

Remove all listeners for the NlpCoefEvalError callback

Throws:: XPRSexception

addSlpPreUpdateLinearizationListener
```
public void addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener)
                                          throws XPRSexception
```
Add a listener for the SlpPreUpdateLinearization callback. Note that an object can have multiple SlpPreUpdateLinearization listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpPreUpdateLinearization listeners will be removed.)

Throws:

XPRSexception

addSlpPreUpdateLinearizationListener
```
public void addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener,
                                                 java.lang.Object data)
                                          throws XPRSexception
```
Add a listener for the SlpPreUpdateLinearization callback. Note that an object can have multiple SlpPreUpdateLinearization listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpPreUpdateLinearization listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addSlpPreUpdateLinearizationListener
```
public void addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener,
                                                 int priority)
                                          throws XPRSexception
```
Add a listener for the SlpPreUpdateLinearization callback. Note that an object can have multiple SlpPreUpdateLinearization listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpPreUpdateLinearization listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addSlpPreUpdateLinearizationListener
```
public void addSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener,
                                                 java.lang.Object data,
                                                 int priority)
                                          throws XPRSexception
```
Add a listener for the SlpPreUpdateLinearization callback. Note that an object can have multiple SlpPreUpdateLinearization listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all SlpPreUpdateLinearization listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeSlpPreUpdateLinearizationListener

public void removeSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener)
                                             throws XPRSexception

Removes the given SlpPreUpdateLinearization listener from the object.

Parameters:: listener - The listener to remove.
Throws:: XPRSexception

removeSlpPreUpdateLinearizationListener

public void removeSlpPreUpdateLinearizationListener(XPRSslpPreUpdateLinearizationListener listener,
                                                    java.lang.Object data)
                                             throws XPRSexception

Removes the given SlpPreUpdateLinearization listener with the given data value from the object.

Parameters:: listener - The listener to remove.; data - The user data to remove.
Throws:: XPRSexception

removeSlpPreUpdateLinearizationListeners

public void removeSlpPreUpdateLinearizationListeners()
                                              throws XPRSexception

Remove all listeners for the SlpPreUpdateLinearization callback

Throws:: XPRSexception

addMsgHandlerListener
```
public void addMsgHandlerListener(XPRSmsgHandlerListener listener)
                           throws XPRSexception
```
Add a listener for the MsgHandler callback. Note that an object can have multiple MsgHandler listeners.

Specified by:

addMsgHandlerListener in class XPRSobject

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsgHandler listeners will be removed.)

Throws:

XPRSexception

addMsgHandlerListener
```
public void addMsgHandlerListener(XPRSmsgHandlerListener listener,
                                  java.lang.Object data)
                           throws XPRSexception
```
Add a listener for the MsgHandler callback. Note that an object can have multiple MsgHandler listeners.

Specified by:

addMsgHandlerListener in class XPRSobject

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsgHandler listeners will be removed.)

data - An additional object which will be passed down to the callback function

Throws:

XPRSexception

addMsgHandlerListener
```
public void addMsgHandlerListener(XPRSmsgHandlerListener listener,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the MsgHandler callback. Note that an object can have multiple MsgHandler listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsgHandler listeners will be removed.)

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

addMsgHandlerListener
```
public void addMsgHandlerListener(XPRSmsgHandlerListener listener,
                                  java.lang.Object data,
                                  int priority)
                           throws XPRSexception
```
Add a listener for the MsgHandler callback. Note that an object can have multiple MsgHandler listeners.

Parameters:

listener - The listener to which the event will be dispatched. (If null, all MsgHandler listeners will be removed.)

data - An additional object which will be passed down to the callback function

priority - Listeners with higher priorities are called first

Throws:

XPRSexception

removeMsgHandlerListener
```
public void removeMsgHandlerListener(XPRSmsgHandlerListener listener)
                              throws XPRSexception
```
Removes the given MsgHandler listener from the object.

Parameters:

listener - The listener to remove.

Throws:

XPRSexception

removeMsgHandlerListener
```
public void removeMsgHandlerListener(XPRSmsgHandlerListener listener,
                                     java.lang.Object data)
                              throws XPRSexception
```
Removes the given MsgHandler listener with the given data value from the object.

Parameters:

listener - The listener to remove.

data - The user data to remove.

Throws:

XPRSexception

removeMsgHandlerListeners

public void removeMsgHandlerListeners()
                               throws XPRSexception

Remove all listeners for the MsgHandler callback

Throws:: XPRSexception

attributes
```
public XPRSprob.Attributes attributes()
```
Access the attributes of this instance.

Returns:

an object that allows accessing the attributes of this instance.

controls
```
public XPRSprob.Controls controls()
```
Access the controls of this instance.

Returns:

an object that allows accessing the controls of this instance.

getSolX
```
@Deprecated
public double[] getSolX()
                 throws XPRSprobException
```
Deprecated.
since 41.00, will be removed in a future release, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks(), getRedCosts(), getCallbackRedCosts(), getDuals(), getCallbackDuals() instead

Get the x values of a solution. This is a convenience wrapper for getSol(double[],double[],double[],double[]) that allocates and returns only the x array.

Throws:

XPRSprobException

See Also:

getSol(double[], double[], double[], double[])

getSolSlack
```
@Deprecated
public double[] getSolSlack()
                     throws XPRSprobException
```
Deprecated.
since 41.00, will be removed in a future release, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks(), getRedCosts(), getCallbackRedCosts(), getDuals(), getCallbackDuals() instead

Get the slack values of a solution. This is a convenience wrapper for getSol(double[],double[],double[],double[]) that allocates and returns only the slack array.

Throws:

XPRSprobException

See Also:

getSol(double[], double[], double[], double[])

getSolDuals
```
@Deprecated
public double[] getSolDuals()
                     throws XPRSprobException
```
Deprecated.
since 41.00, will be removed in a future release, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks(), getRedCosts(), getCallbackRedCosts(), getDuals(), getCallbackDuals() instead

Get the duals values of a solution. This is a convenience wrapper for getSol(double[],double[],double[],double[]) that allocates and returns only the duals array.

Throws:

XPRSprobException

See Also:

getSol(double[], double[], double[], double[])

getSolDjs
```
@Deprecated
public double[] getSolDjs()
                   throws XPRSprobException
```
Deprecated.
since 41.00, will be removed in a future release, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks(), getRedCosts(), getCallbackRedCosts(), getDuals(), getCallbackDuals() instead

Get the djs values of a solution. This is a convenience wrapper for getSol(double[],double[],double[],double[]) that allocates and returns only the djs array.

Throws:

XPRSprobException

See Also:

getSol(double[], double[], double[], double[])

getSol
```
@Deprecated
public XPRSprob.Solution getSol()
                         throws XPRSprobException
```
Deprecated.
since 41.00, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks(), getRedCosts(), getCallbackRedCosts(), getDuals(), getCallbackDuals() instead

Get a solution. This is a convenience wrapper for getSol(double[],double[],double[],double[]) that allocates and returns all arrays in a single object.

Throws:

XPRSprobException

See Also:

getSol(double[], double[], double[], double[])

getPresolveSolX
```
public double[] getPresolveSolX()
                         throws XPRSprobException
```
Get the x values of a solution. This is a convenience wrapper for getPresolveSol(double[],double[],double[],double[]) that allocates and returns only the x array.

Throws:

XPRSprobException

See Also:

getPresolveSol(double[], double[], double[], double[])

getPresolveSolSlack
```
public double[] getPresolveSolSlack()
                             throws XPRSprobException
```
Get the slack values of a solution. This is a convenience wrapper for getPresolveSol(double[],double[],double[],double[]) that allocates and returns only the slack array.

Throws:

XPRSprobException

See Also:

getPresolveSol(double[], double[], double[], double[])

getPresolveSolDuals
```
public double[] getPresolveSolDuals()
                             throws XPRSprobException
```
Get the duals values of a solution. This is a convenience wrapper for getPresolveSol(double[],double[],double[],double[]) that allocates and returns only the duals array.

Throws:

XPRSprobException

See Also:

getPresolveSol(double[], double[], double[], double[])

getPresolveSolDjs
```
public double[] getPresolveSolDjs()
                           throws XPRSprobException
```
Get the djs values of a solution. This is a convenience wrapper for getPresolveSol(double[],double[],double[],double[]) that allocates and returns only the djs array.

Throws:

XPRSprobException

See Also:

getPresolveSol(double[], double[], double[], double[])

getPresolveSol
```
public XPRSprob.Solution getPresolveSol()
                                 throws XPRSprobException
```
Get a solution. This is a convenience wrapper for getPresolveSol(double[],double[],double[],double[]) that allocates and returns all arrays in a single object.

Throws:

XPRSprobException

See Also:

getPresolveSol(double[], double[], double[], double[])

getLpSolX
```
public double[] getLpSolX()
                   throws XPRSprobException
```
Get the x values of a solution. This is a convenience wrapper for getLpSol(double[],double[],double[],double[]) that allocates and returns only the x array.
Examples using getLpSolX:
- FixBV.java
Throws:

XPRSprobException

See Also:

getLpSol(double[], double[], double[], double[])

getLpSolSlack
```
public double[] getLpSolSlack()
                       throws XPRSprobException
```
Get the slack values of a solution. This is a convenience wrapper for getLpSol(double[],double[],double[],double[]) that allocates and returns only the slack array.

Throws:

XPRSprobException

See Also:

getLpSol(double[], double[], double[], double[])

getLpSolDuals
```
public double[] getLpSolDuals()
                       throws XPRSprobException
```
Get the duals values of a solution. This is a convenience wrapper for getLpSol(double[],double[],double[],double[]) that allocates and returns only the duals array.

Throws:

XPRSprobException

See Also:

getLpSol(double[], double[], double[], double[])

getLpSolDjs
```
public double[] getLpSolDjs()
                     throws XPRSprobException
```
Get the djs values of a solution. This is a convenience wrapper for getLpSol(double[],double[],double[],double[]) that allocates and returns only the djs array.

Throws:

XPRSprobException

See Also:

getLpSol(double[], double[], double[], double[])

getLpSol
```
public XPRSprob.Solution getLpSol()
                           throws XPRSprobException
```
Get a solution. This is a convenience wrapper for getLpSol(double[],double[],double[],double[]) that allocates and returns all arrays in a single object.

Throws:

XPRSprobException

See Also:

getLpSol(double[], double[], double[], double[])

getMipSolX
```
@Deprecated
public double[] getMipSolX()
                    throws XPRSprobException
```
Deprecated.
since 44.00, will be removed in a future release, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks() instead

Get the x values of a solution. This is a convenience wrapper for getMipSol(double[],double[]) that allocates and returns only the x array.

Throws:

XPRSprobException

See Also:

getMipSol(double[], double[])

getMipSolSlack
```
@Deprecated
public double[] getMipSolSlack()
                        throws XPRSprobException
```
Deprecated.
since 44.00, will be removed in a future release, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks() instead

Get the slack values of a solution. This is a convenience wrapper for getMipSol(double[],double[]) that allocates and returns only the slack array.

Throws:

XPRSprobException

See Also:

getMipSol(double[], double[])

getMipSol
```
@Deprecated
public XPRSprob.Solution getMipSol()
                            throws XPRSprobException
```
Deprecated.
since 44.00, use one of getSolution(), getCallbackSolution(), getSlacks(), getCallbackSlacks() instead

Get a solution. This is a convenience wrapper for getMipSol(double[],double[]) that allocates and returns all arrays in a single object.

Throws:

XPRSprobException

See Also:

getMipSol(double[], double[])

getLastBarSolX
```
public double[] getLastBarSolX()
                        throws XPRSprobException
```
Get the x values of a solution. This is a convenience wrapper for getLastBarSol(double[],double[],double[],double[],com.dashoptimization.IntHolder) that allocates and returns only the x array.

Throws:

XPRSprobException

See Also:

getLastBarSol(double[], double[], double[], double[], IntHolder)

getLastBarSolSlack
```
public double[] getLastBarSolSlack()
                            throws XPRSprobException
```
Get the slack values of a solution. This is a convenience wrapper for getLastBarSol(double[],double[],double[],double[],com.dashoptimization.IntHolder) that allocates and returns only the slack array.

Throws:

XPRSprobException

See Also:

getLastBarSol(double[], double[], double[], double[], IntHolder)

getLastBarSolDuals
```
public double[] getLastBarSolDuals()
                            throws XPRSprobException
```
Get the duals values of a solution. This is a convenience wrapper for getLastBarSol(double[],double[],double[],double[],com.dashoptimization.IntHolder) that allocates and returns only the duals array.

Throws:

XPRSprobException

See Also:

getLastBarSol(double[], double[], double[], double[], IntHolder)

getLastBarSolDjs
```
public double[] getLastBarSolDjs()
                          throws XPRSprobException
```
Get the djs values of a solution. This is a convenience wrapper for getLastBarSol(double[],double[],double[],double[],com.dashoptimization.IntHolder) that allocates and returns only the djs array.

Throws:

XPRSprobException

See Also:

getLastBarSol(double[], double[], double[], double[], IntHolder)

getLastBarSol
```
public XPRSprob.StatusSolution getLastBarSol()
                                      throws XPRSprobException
```
Get a solution. This is a convenience wrapper for getLastBarSol(double[],double[],double[],double[],com.dashoptimization.IntHolder) that allocates and returns all arrays in a single object.

Throws:

XPRSprobException

See Also:

getLastBarSol(double[], double[], double[], double[], IntHolder)

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Contents

Index

Glossary

Search Results

XPRSprob

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class com.dashoptimization.XPRSobject

Methods inherited from class java.lang.Object

Field Detail

LEQ

GEQ

EQ

Constructor Detail

XPRSprob

XPRSprob

Method Detail

close

interrupt

iISStatus

iISAll

iISIsolations

getNames

getNameListObject

getStrControl

getStrAttrib

getStrControl

getStrAttrib

addNames

addSetNames

chgObjSense

createBranchObject

createBranchObjectFromGlobal

getPwlCons

getInfeas

getScaledInfeas

getLastBarSol

basisStability

getControlInfo

getAttribInfo

getPrimalRay

getDualRay

getBasisVal

getRowBasisVal

getColBasisVal

getCutList

getQRowQMatrixTriplets

getQRowIndices

getLpSolVal

getMipSolVal

loadLp

loadLp

fixGlobals

getGlobal

getGlobalEntities

getGlobalSets

getGlobal

loadQGlobal

loadQGlobal

loadGlobal

loadGlobal

loadQCQPGlobal

loadQCQPGlobal

addMipSol

addMipSol

getMIPEntities

getDiscreteCols

getSets

getSetDefinitions

delIndicator

getIndicators

getIndicator

setIndicator

getCols

getRows

getMQObj

addNames

optimize