ilog.cplex
Class IloCplex.BarrierCallback

java.lang.Object
  |
  +--ilog.cplex.IloCplex.Callback
        |
        +--ilog.cplex.IloCplex.LPCallback
              |
              +--ilog.cplex.IloCplex.BarrierCallback
public abstract static class IloCplex.BarrierCallback
extends IloCplex.LPCallback

The callback class to use when IloCplex uses the barrier optimizer. This class represents a user-written callback in an application that uses an instance of IloCplex to solve a problem by means of the barrier optimizer. IloCplex calls the user-written callback after each iteration during the optimization. If an attempt is made to access information not available to an instance of this class, an exception is thrown.

The constructor and method of this class are for use in deriving a user-written callback class and in implementing the main method in it.

For more information about the barrier optimizer, see the ILOG CPLEX User’s Manual.

See Also:
IloCplex.LPCallback

Constructor Summary
protected IloCplex.BarrierCallback()
          User-written barrier simplex callback class constructor.
 
Method Summary
protected  double getDualObjValue()
          Gets the current dual objective value.
 
Methods inherited from class ilog.cplex.IloCplex.LPCallback
getDualInfeasibility, getInfeasibility, getNiterations, getObjValue, isDualFeasible, isFeasible
 
Methods inherited from class ilog.cplex.IloCplex.Callback
abort, main
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

IloCplex.BarrierCallback

protected IloCplex.BarrierCallback()
User-written barrier simplex callback class constructor. This constructor can be called only for constructing objects of derived user-written callback classes, but not to construct IloCplex.LPCallback objects directly.
Method Detail

getDualObjValue

protected double getDualObjValue()
Gets the current dual objective value.
Returns:
The current dual objective value.