CbcSimpleIntegerPseudoCost.hpp

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// $Id$
// Copyright (C) 2002, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).
 
// Edwin 11/10/2009-- carved out of CbcBranchActual
 
#ifndef CbcSimpleIntegerPseudoCost_H
#define CbcSimpleIntegerPseudoCost_H
 
#include "CbcSimpleInteger.hpp"
 
class CbcSimpleIntegerPseudoCost : public CbcSimpleInteger {
 
public:
  // Default Constructor
  CbcSimpleIntegerPseudoCost();
 
  // Useful constructor - passed model index
  CbcSimpleIntegerPseudoCost(CbcModel *model, int iColumn, double breakEven = 0.5);
 
  // Useful constructor - passed and model index and pseudo costs
  CbcSimpleIntegerPseudoCost(CbcModel *model, int iColumn,
    double downPseudoCost, double upPseudoCost);
  // Useful constructor - passed and model index and pseudo costs
  CbcSimpleIntegerPseudoCost(CbcModel *model, int dummy, int iColumn,
    double downPseudoCost, double upPseudoCost);
 
  // Copy constructor
  CbcSimpleIntegerPseudoCost(const CbcSimpleIntegerPseudoCost &);

  virtual CbcObject *clone() const;
 
  // Assignment operator
  CbcSimpleIntegerPseudoCost &operator=(const CbcSimpleIntegerPseudoCost &rhs);
 
  // Destructor
  virtual ~CbcSimpleIntegerPseudoCost();

  virtual double infeasibility(const OsiBranchingInformation *info,
    int &preferredWay) const;

  virtual CbcBranchingObject *createCbcBranch(OsiSolverInterface *solver, const OsiBranchingInformation *info, int way);

  inline double downPseudoCost() const
  {
    return downPseudoCost_;
  }

  inline void setDownPseudoCost(double value)
  {
    downPseudoCost_ = value;
  }

  inline double upPseudoCost() const
  {
    return upPseudoCost_;
  }

  inline void setUpPseudoCost(double value)
  {
    upPseudoCost_ = value;
  }

  inline double upDownSeparator() const
  {
    return upDownSeparator_;
  }

  inline void setUpDownSeparator(double value)
  {
    upDownSeparator_ = value;
  }

  virtual double upEstimate() const;
  virtual double downEstimate() const;

  inline int method() const
  {
    return method_;
  }

  inline void setMethod(int value)
  {
    method_ = value;
  }
 
protected:

  double downPseudoCost_;
  double upPseudoCost_;
  double upDownSeparator_;
  int method_;
};
 
#endif
 
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