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Class IloCplex::FractionalCutCallbackI

Definition file: ilocplexi.h
Include files: ilcplex/ilocplex.h

An instance of the class IloCplex::FractionalCutCallbackI 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 check on the progress of the generation of fractional cuts.

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

If an attempt is made to access information not available to an instance of this class, an exception is thrown.

See Also:

IloCplex, IloCplex::Callback, IloCplex::CallbackI, IloCplex::MIPCallbackI

Constructor Summary
protected FractionalCutCallbackI()
Method Summary
protected IloNumgetProgress()
Inherited Methods from MIPCallbackI
getBestObjValue, getCutoff, getDirection, getDirection, getIncumbentObjValue, getIncumbentValue, getIncumbentValue, getIncumbentValues, getIncumbentValues, getMyThreadNum, getNcliques, getNcovers, getNdisjunctiveCuts, getNflowCovers, getNflowPaths, getNfractionalCuts, getNGUBcovers, getNimpliedBounds, getNiterations, getNMIRs, getNnodes, getNremainingNodes, getObjCoef, getObjCoef, getObjCoefs, getObjCoefs, getPriority, getPriority, getUserThreads, hasIncumbent
Inherited Methods from CallbackI
abort, duplicateCallback, getEnv, getModel, getNcols, getNQCs, getNrows, main
Constructor Detail

FractionalCutCallbackI

protected FractionalCutCallbackI()

This constructor creates a callback for use in an application where fractional cuts are generated.

Method Detail

getProgress

protected IloNum getProgress()

This method returns the fraction of completion of the fractional cut generation pass.