ilog.opl

Class IloCplex.FlowMIRCutInfoCallback

java.lang.Object

ilog.opl.IloCplex.Callback

ilog.opl.IloCplex.MIPInfoCallback

ilog.opl.IloCplex.FlowMIRCutInfoCallback

All Implemented Interfaces:

java.lang.Cloneable

Enclosing class:

IloCplex

public abstract static class IloCplex.FlowMIRCutInfoCallback
extends IloCplex.MIPInfoCallback

Monitors the progress of the generation of flow cover and mixed integer rounding (MIR) cuts when a mixed integer programming problem (MIP) is being solved.

An instance of the class FlowMIRCutInfoCallback represents a user-written callback in an application that uses an instance of IloCplex to solve a mixed integer programming problem (a MIP). This class offers a method to monitor the progress of the generation of flow cover and mixed integer rounding (MIR) cuts.

User-written callbacks of this class are compatible with dynamic search.

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. This is the callback class to use when IloCplex is solving a MIP.

The user-written callback of this class is called by only one thread, even in the case of parallel execution. Consequently, it is not necessary for the user-written callback to manage synchronization.

See Also:

IloCplex.MIPInfoCallback

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IloCplex.FlowMIRCutInfoCallback() Constructor for user-written flow cover and MIR cut callbacks.

Method Summary

Methods

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

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.FlowMIRCutInfoCallback

protected IloCplex.FlowMIRCutInfoCallback()

Constructor for user-written flow cover and MIR cut callbacks.

This constructor can be called only to construct objects of derived user-written callback classes, but not to construct FlowMIRCutInfoCallback objects directly.

Method Detail

getProgress

protected double getProgress()
                      throws IloException

Returns the fraction of completion of the cut generation.

The returned values are in the range of 0.0 to 1.0.

Throws:

IloException

Returns:

The fraction of completion of the cut generation.