ilog.opl

Class IloCplex.FractionalCutCallback

java.lang.Object

ilog.opl.IloCplex.Callback

ilog.opl.IloCplex.MIPInfoCallback

ilog.opl.IloCplex.MIPCallback

ilog.opl.IloCplex.FractionalCutCallback

All Implemented Interfaces:

java.lang.Cloneable

Enclosing class:

IloCplex

public abstract static class IloCplex.FractionalCutCallback
extends IloCplex.MIPCallback

An instance of this class represents a user-written callback in an application that uses an instance of IloCplex to solve a mixed integer programming problem (a MIP). It allows you to monitor the progress of the generation of fractional cuts.

The constructor and methods of this class are protected to make sure that they are used only to derive a user-written callback class or to implement the main method in it.

See Also:

IloCplex.MIPCallback

Nested Class Summary

Nested classes/interfaces inherited from class ilog.opl.IloCplex.MIPCallback

IloCplex.MIPCallback.NodeData

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IloCplex.FractionalCutCallback() Constructor for user-written fractional cut callbacks.

Method Summary

Methods

Modifier and Type	Method and Description
protected double	getProgress() Returns the fraction of completion of the fractional cut generation.

Methods inherited from class ilog.opl.IloCplex.MIPCallback

getObjCoef, getObjCoefs, getObjCoefs, getUserThreads

Methods inherited from class ilog.opl.IloCplex.MIPInfoCallback

getBestObjValue, getCutoff, getDirection, getIncumbentObjValue, getIncumbentValue, getIncumbentValue, getIncumbentValues, getIncumbentValues, getMIPRelativeGap, getMyThreadNum, getNiterations, getNnodes, getNremainingNodes, getPriority, hasIncumbent

Methods inherited from class ilog.opl.IloCplex.Callback

abort, getCplexTime, getDetTime, getEndDetTime, getEndTime, getEnvImpl, getModel, getNcols, getNQCs, getNrows, getStartDetTime, getStartTime, main

Methods inherited from class java.lang.Object

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

Constructor Detail

IloCplex.FractionalCutCallback

protected IloCplex.FractionalCutCallback()

Constructor for user-written fractional cut callbacks. This constructor can be called only to construct objects of derived user-written callback classes, but not to construct IloCplex.FractionalCutCallback objects directly.

Method Detail

getProgress

protected double getProgress()
                      throws IloException

Returns the fraction of completion of the fractional cut generation. The returned values are in the range of 0.0 to 1.0.

Throws:

IloException

Returns:

The fraction of completion of the fractional cut generation.