CbcBranchToFixLots.hpp

Go to the documentation of this file.

// Edwin 11/13/2009-- carved out of CbcBranchCut
#ifndef CbcBranchToFixLots_H
#define CbcBranchToFixLots_H

#include "CbcBranchCut.hpp"
#include "CbcBranchBase.hpp"
#include "OsiRowCut.hpp"
#include "CoinPackedMatrix.hpp"

class CbcBranchToFixLots : public CbcBranchCut {

public:

    // Default Constructor
    CbcBranchToFixLots ();

    CbcBranchToFixLots (CbcModel * model, double djTolerance,
                        double fractionFixed, int depth,
                        int numberClean = 0,
                        const char * mark = NULL,
                        bool alwaysCreate = false);

    // Copy constructor
    CbcBranchToFixLots ( const CbcBranchToFixLots &);

    virtual CbcObject * clone() const;

    // Assignment operator
    CbcBranchToFixLots & operator=( const CbcBranchToFixLots& rhs);

    // Destructor
    ~CbcBranchToFixLots ();

    int shallWe() const;

    virtual double infeasibility(const OsiBranchingInformation * info,
                                 int &preferredWay) const;
    virtual bool canDoHeuristics() const {
        return true;
    }

    virtual CbcBranchingObject * createCbcBranch(OsiSolverInterface * solver, const OsiBranchingInformation * info, int way) ;
    virtual void redoSequenceEtc(CbcModel * model, int numberColumns, const int * originalColumns);


protected:

    double djTolerance_;
    double fractionFixed_;
    char * mark_;
    CoinPackedMatrix matrixByRow_;
    int depth_;
    int numberClean_;
    bool alwaysCreate_;
};
#endif