XPRBsol (BCL Java Documentation)

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

All Methods Instance Methods Concrete Methods
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();

Class XPRBsol