Initializing help system before first use

XPRBsol

  • java.lang.Object
    • com.dashoptimization.XPRBsol

  • public class XPRBsol
extends java.lang.Object
    This class represents a Solution definition in BCL. All variables in solution must belong to the same problem as the solution itself.

    • Method Summary

      Modifier and Type Method and Description
      void delVar(XPRBvar var)
      Delete a variable assignment from a solution.
      int getSize()
      Get the size of a solution.
      java.lang.Double getVar(XPRBvar var)
      Get the value assignet to a variable in a solution.
      boolean isValid()
      Test whether a solution is correctly defined.
      void print()
      Print out a solution.
      void setVar(XPRBvar var, double value)
      Add a variable assignment in a solution.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • isValid

        public boolean isValid()
        Test whether a solution is correctly defined. 
             XPRBsol sol1;
     if(sol1.isValid() == false)
        System.out.println("Error in sol definition.");

      • setVar

        public void setVar(XPRBvar var,
                   double value)
        Add a variable assignment in a solution. This method sets the value of a variable in a (partial) solution. 
             XPRBprob expl1;
     XPRBvar x1, x2;
     XPRBsol sol1;
     expl1 = new XPRBprob("example1");
     x1 = expl1.newVar("abc3", XPRB.UI, 1, 100);
     x2 = expl1.newVar("abc1", XPRB.PL, 0, XPRB.INFINITY);
     sol1 = expl1.newSol();
     sol1.setVar(x1,1.0);
     sol1.setVar(x2,0.0);
        Parameters:
        var - a variable of type XPRBvar
        value - a double constant

      • getVar

        public java.lang.Double getVar(XPRBvar var)
        Get the value assignet to a variable in a solution. This method retrieves the value assigned to a variable in the given solution. 
             XPRBprob expl1;
     XPRBvar x1, x2;
     XPRBsol sol1;
     double val1;
     expl1 = new XPRBprob("example1");
     x1 = expl1.newVar("abc3", XPRB.UI, 1, 100);
     sol1 = expl1.newSol();
     sol1.setVar(x1,1.0);
     val1 = sol1.getVar(x1, value);
        Parameters:
        var - a variable of type XPRBvar
        Returns:
        The value assigned to var or null.

      • delVar

        public void delVar(XPRBvar var)
        Delete a variable assignment from a solution. This method removes a variable from a solution. 
             XPRBprob expl2;
     XPRBvar x1;
     XPRBsol sol1;
     expl2 = new XPRBprob("example2");
     x1 = expl2.newVar("abc3", XPRB.UI, 1, 100);
     sol1 = expl2.newSol();
     sol1.addVar(x1, 1.0);
     sol1.delVar(x1);
        Parameters:
        var - a variable of type XPRBvar

      • getSize

        public int getSize()
        Get the size of a solution. Returns the number of variables assigned to a value in a solution. 
             XPRBprob expl2;
     XPRBvar x1;
     XPRBsol sol1;
     int size;
     expl2 = new XPRBprob("example2");
     x1 = expl2.newVar("abc3", XPRB.UI, 1, 100);
     sol1 = expl2.newSol();
     sol1.addVar(x1, 1.0);
     size = sol1.getSize();
        Returns:
        Solution size (integer value)

      • print

        public void print()
        Print out a solution. This method is not available in the Student Edition. 
             XPRBprob expl2;
     XPRBsos set1;
     expl2 = new XPRBprob("example2");
     sol1 = expl2.newSol();
     sol1.print();
Parent Topic Class Summary