XPRSbranchobject

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

All Implemented Interfaces:

java.lang.AutoCloseable
```
public class XPRSbranchobject
extends XPRSobject
```
Class encapsulating a branch object

Method Summary

Modifier and Type	Method and Description
`void`	`addBounds(int branch, int nbounds, byte[] bndtype, int[] colind, double[] bndval)` Adds new bounds to a branch of a user branching object.
`void`	`addBranches(int nbranches)` Adds new, empty branches to a user defined branching object.
`void`	`addCuts(int branch, int ncuts, XPRScut[] cutind)` Adds stored user cuts as new constraints to a branch of a user branching object.
`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`	`addRows(int branch, int nrows, int ncoefs, byte[] rowtype, double[] rhs, int[] start, int[] colind, double[] rowcoef)` Adds new constraints to a branch of a user branching object.
`void`	`close()` Deallocates resources associated with an XPRSobject.
`int`	`getBounds(int branch)` Convenience wrapper for `getBounds(int, IntHolder, int, byte[], int[], double[])`.
`int`	`getBounds(int branch, int maxbounds, byte[] bndtype, int[] colind, double[] bndval)` Convenience wrapper for `getBounds(int, IntHolder, int, byte[], int[], double[])`.
`int`	`getBranches()` Convenience wrapper for `getBranches(IntHolder)`.
`void`	`getID(IntHolder p_id)` Returns the unique identifier assigned to a branching object.
`java.lang.String`	`getLastError()` Convenience wrapper for `getLastError(IntHolder, StringHolder, int, IntHolder)`.
`java.lang.String`	`getLastError(IntHolder p_msgcode)` Convenience wrapper for `getLastError(IntHolder, StringHolder, int, IntHolder)`.
`int`	`getRows(int branch)` Convenience wrapper for `getRows(int, IntHolder, int, IntHolder, int, byte[], double[], int[], int[], double[])`.
`int`	`getRows(int branch, int maxrows, IntHolder p_ncoefs, int maxcoefs, byte[] rowtype, double[] rhs, int[] start, int[] colind, double[] rowcoef)` Convenience wrapper for `getRows(int, IntHolder, int, IntHolder, int, byte[], double[], int[], int[], double[])`.
`void`	`removeMsgHandlerListener()` Removes all MsgHandler listeners from the object.
`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`	`setPreferredBranch(int branch)` Specifies which of the child nodes corresponding to the branches of the object should be explored first.
`void`	`setPriority(int priority)` Sets the priority value of a user branching object.
`int`	`store()` Commits the branch object to the XPRSprob.
`void`	`validate(IntHolder p_status)` Verifies that a given branching object is valid for branching on the current branch-and-bound node of a MIP solve.

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

- Method Detail
  - store
```
public int store()
          throws XPRSexception
```
    Commits the branch object to the XPRSprob. Note that the XPRSbranchobject will be invalidated when store() returns.
    
    Throws:
    
    XPRSexception
  - close
```
public void close()
```
    Description copied from class: XPRSobject
    
    Deallocates resources associated with an XPRSobject.
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in class XPRSobject
  - addBranches
```
public void addBranches(int nbranches)
                 throws XPRSexception
```
    Adds new, empty branches to a user defined branching object.
    
    Parameters:
    
    nbranches - Number of new branches to create.
    
    Throws:
    
    XPRSexception
  - getBranches
```
public int getBranches()
                throws XPRSexception
```
    Convenience wrapper for getBranches(IntHolder).
    
    Throws:
    
    XPRSexception
    
    See Also:
    
    getBranches(IntHolder)
  - setPriority
```
public void setPriority(int priority)
                 throws XPRSexception
```
    Sets the priority value of a user branching object.
    
    Parameters:
    
    priority - The new priority value to assign to the branching object, which must be a number from 0 to 1000. User branching objects are created with a default priority value of 500.
    
    Throws:
    
    XPRSexception
  - setPreferredBranch
```
public void setPreferredBranch(int branch)
                        throws XPRSexception
```
    Specifies which of the child nodes corresponding to the branches of the object should be explored first.
    
    Parameters:
    
    branch - The number of the branch to mark as preferred.
    
    Throws:
    
    XPRSexception
  - addBounds
```
public void addBounds(int branch,
                      int nbounds,
                      byte[] bndtype,
                      int[] colind,
                      double[] bndval)
               throws XPRSexception
```
    Adds new bounds to a branch of a user branching object.
    Parameters:
    
    branch - The number of the branch to add the new bounds for. This branch must already have been created using addBranches. Branches are indexed starting from zero.
    
    nbounds - Number of new bounds to add.
    bndtype - Character array of length nbounds indicating the type of bounds to add:
    
    L: Lower bound.
    
    U: Upper bound.
    colind - Integer array of length nbounds containing the column indices for the new bounds.
    
    bndval - Double array of length nbounds giving the bound values.
    
    Throws:
    
    XPRSexception
  - getBounds
```
public int getBounds(int branch,
                     int maxbounds,
                     byte[] bndtype,
                     int[] colind,
                     double[] bndval)
              throws XPRSexception
```
    Convenience wrapper for getBounds(int, IntHolder, int, byte[], int[], double[]).
    
    Throws:
    
    XPRSexception
    
    See Also:
    
    getBounds(int, IntHolder, int, byte[], int[], double[])
  - getBounds
```
public int getBounds(int branch)
              throws XPRSexception
```
    Convenience wrapper for getBounds(int, IntHolder, int, byte[], int[], double[]).
    
    Throws:
    
    XPRSexception
    
    See Also:
    
    getBounds(int, IntHolder, int, byte[], int[], double[])
  - addRows
```
public void addRows(int branch,
                    int nrows,
                    int ncoefs,
                    byte[] rowtype,
                    double[] rhs,
                    int[] start,
                    int[] colind,
                    double[] rowcoef)
             throws XPRSexception
```
    Adds new constraints to a branch of a user branching object.
    Parameters:
    
    branch - The number of the branch to add the new constraints for. This branch must already have been created using addBranches. Branches are indexed starting from zero.
    
    nrows - Number of new constraints to add.
    
    ncoefs - Number of non-zero coefficients in all new constraints.
    rowtype - Character array of length nrows indicating the type of constraints to add:
    
    L: Less than type.
    
    G: Greater than type.
    
    E: Equality type.
    rhs - Double array of length nrows containing the right hand side values.
    
    start - Integer array of length nrows containing the offsets of the colind and rowcoef arrays of the start of the non zero coefficients in the new constraints.
    
    colind - Integer array of length ncoefs containing the column indices for the non zero coefficients.
    
    rowcoef - Double array of length ncoefs containing the non zero coefficient values.
    
    Throws:
    
    XPRSexception
  - getRows
```
public int getRows(int branch,
                   int maxrows,
                   IntHolder p_ncoefs,
                   int maxcoefs,
                   byte[] rowtype,
                   double[] rhs,
                   int[] start,
                   int[] colind,
                   double[] rowcoef)
            throws XPRSexception
```
    Convenience wrapper for getRows(int, IntHolder, int, IntHolder, int, byte[], double[], int[], int[], double[]).
    
    Throws:
    
    XPRSexception
    
    See Also:
    
    getRows(int, IntHolder, int, IntHolder, int, byte[], double[], int[], int[], double[])
  - getRows
```
public int getRows(int branch)
            throws XPRSexception
```
    Convenience wrapper for getRows(int, IntHolder, int, IntHolder, int, byte[], double[], int[], int[], double[]).
    
    Throws:
    
    XPRSexception
    
    See Also:
    
    getRows(int, IntHolder, int, IntHolder, int, byte[], double[], int[], int[], double[])
  - addCuts
```
public void addCuts(int branch,
                    int ncuts,
                    XPRScut[] cutind)
             throws XPRSexception
```
    Adds stored user cuts as new constraints to a branch of a user branching object.
    
    Parameters:
    
    branch - The number of the branch to add the cuts for. This branch must already have been created using addBranches. Branches are indexed starting from zero.
    
    ncuts - Number of cuts to add.
    
    cutind - Array of length ncuts containing the pointers to user cuts that should be added to the branch.
    
    Throws:
    
    XPRSexception
  - getID
```
public void getID(IntHolder p_id)
           throws XPRSexception
```
    Returns the unique identifier assigned to a branching object.
    
    Parameters:
    
    p_id - Pointer to an integer where the identifier should be returned.
    
    Throws:
    
    XPRSexception
  - getLastError
```
public java.lang.String getLastError()
                              throws XPRSexception
```
    Convenience wrapper for getLastError(IntHolder, StringHolder, int, IntHolder).
    
    Specified by:
    
    getLastError in class XPRSobject
    
    Throws:
    
    XPRSexception
    
    See Also:
    
    getLastError(IntHolder, StringHolder, int, IntHolder)
  - getLastError
```
public java.lang.String getLastError(IntHolder p_msgcode)
                              throws XPRSexception
```
    Convenience wrapper for getLastError(IntHolder, StringHolder, int, IntHolder).
    
    Throws:
    
    XPRSexception
    
    See Also:
    
    getLastError(IntHolder, StringHolder, int, IntHolder)
  - validate
```
public void validate(IntHolder p_status)
              throws XPRSexception
```
    Verifies that a given branching object is valid for branching on the current branch-and-bound node of a MIP solve. The function will check that all branches are non-empty, and if required, verify that the branching object can be presolved.
    Parameters:
    p_status - The returned status from checking the provided branching object:
    
    0: The object is acceptable.
    
    1: Failed to presolve the object due to dual reductions in presolve.
    
    2: Failed to presolve the object due to duplicate column reductions in presolve.
    
    3: The object contains an empty branch.
    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.
    
    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.
    
    Throws:
    
    XPRSexception
  - removeMsgHandlerListener
```
public void removeMsgHandlerListener()
                              throws XPRSexception
```
    Removes all MsgHandler listeners from the object. @deprecated as of Xpress 7.1, please use removeMsgHandlerListener(XPRSmsgHandlerListener) or removeMsgHandlerListeners()
    
    Specified by:
    
    removeMsgHandlerListener in class XPRSobject
    
    Throws:
    
    XPRSexception
  - removeMsgHandlerListeners
```
public void removeMsgHandlerListeners()
                               throws XPRSexception
```
    Remove all listeners for the MsgHandler callback
    
    Throws:
    
    XPRSexception

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Contents

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Glossary

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XPRSbranchobject

Method Summary

Methods inherited from class com.dashoptimization.XPRSobject

Methods inherited from class java.lang.Object

Method Detail

store

close

addBranches

getBranches

setPriority

setPreferredBranch

addBounds

getBounds

getBounds

addRows

getRows

getRows

addCuts

getID

getLastError

getLastError

validate

addMsgHandlerListener

addMsgHandlerListener

addMsgHandlerListener

addMsgHandlerListener

removeMsgHandlerListener

removeMsgHandlerListener

removeMsgHandlerListener

removeMsgHandlerListeners