/* -*- mode: C++; indent-tabs-mode: nil; -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library.

  *

  * Copyright (C) 2003-2008

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_LP_CPLEX_H

 #define LEMON_LP_CPLEX_H

 ///\file

 ///\brief Header of the LEMON-CPLEX lp solver interface.

 #include <lemon/lp_base.h>

 struct cpxenv;

 struct cpxlp;

 namespace lemon {

   /// \brief Interface for the CPLEX solver

   ///

   /// This class implements an interface for the CPLEX LP solver.

   class LpCplex :virtual public LpSolverBase {

   public:

     typedef LpSolverBase Parent;

     /// \e

     int status;

     cpxenv* env;

     cpxlp* lp;

     /// \e

     LpCplex();

     /// \e

     LpCplex(const LpCplex&);

     /// \e

     ~LpCplex();

   protected:

     virtual LpSolverBase* _newLp();

     virtual LpSolverBase* _copyLp();

     virtual int _addCol();

     virtual int _addRow();

     virtual void _eraseCol(int i);

     virtual void _eraseRow(int i);

     virtual void _getColName(int col, std::string & name) const;

     virtual void _setColName(int col, const std::string & name);

     virtual int _colByName(const std::string& name) const;

     virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e);

     virtual void _getRowCoeffs(int i, RowIterator b) const;

     virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e);

     virtual void _getColCoeffs(int i, ColIterator b) const;

     virtual void _setCoeff(int row, int col, Value value);

     virtual Value _getCoeff(int row, int col) const;

     virtual void _setColLowerBound(int i, Value value);

     virtual Value _getColLowerBound(int i) const;

     virtual void _setColUpperBound(int i, Value value);

     virtual Value _getColUpperBound(int i) const;

 //     virtual void _setRowLowerBound(int i, Value value);

 //     virtual void _setRowUpperBound(int i, Value value);

     virtual void _setRowBounds(int i, Value lower, Value upper);

     virtual void _getRowBounds(int i, Value &lb, Value &ub) const;

     virtual void _setObjCoeff(int i, Value obj_coef);

     virtual Value _getObjCoeff(int i) const;

     virtual void _clearObj();

     virtual SolveExitStatus _solve();

     virtual Value _getPrimal(int i) const;

     virtual Value _getDual(int i) const;

     virtual Value _getPrimalValue() const;

     virtual bool _isBasicCol(int i) const;

     virtual SolutionStatus _getPrimalStatus() const;

     virtual SolutionStatus _getDualStatus() const;

     virtual ProblemTypes _getProblemType() const;

     virtual void _setMax();

     virtual void _setMin();

     virtual bool _isMax() const;

   public:

     cpxenv* cplexEnv() { return env; }

     cpxlp* cplexLp() { return lp; }

   };

 } //END OF NAMESPACE LEMON

 #endif //LEMON_LP_CPLEX_H