1 /* -*- mode: C++; indent-tabs-mode: nil; -*-
2  *
3  * This file is a part of LEMON, a generic C++ optimization library.
4  *
5  * Copyright (C) 2003-2013
6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
8  *
9  * Permission to use, modify and distribute this software is granted
10  * provided that this copyright notice appears in all copies. For
11  * precise terms see the accompanying LICENSE file.
12  *
13  * This software is provided "AS IS" with no warranty of any kind,
14  * express or implied, and with no claim as to its suitability for any
15  * purpose.
16  *
17  */
18 
19 #ifndef LEMON_CBC_H
20 #define LEMON_CBC_H
21 
22 ///\file
23 ///\brief Header of the LEMON-CBC mip solver interface.
24 ///\ingroup lp_group
25 
26 #include <lemon/lp_base.h>
27 
28 class CoinModel;
29 class OsiSolverInterface;
30 class CbcModel;
31 
32 namespace lemon {
33 
34   /// \brief Interface for the CBC MIP solver
35   ///
36   /// This class implements an interface for the CBC MIP solver.
37   ///\ingroup lp_group
38   class CbcMip : public MipSolver {
39   protected:
40 
41     CoinModel *_prob;
42     OsiSolverInterface *_osi_solver;
43     CbcModel *_cbc_model;
44 
45   public:
46 
47     /// \e
48     CbcMip();
49     /// \e
50     CbcMip(const CbcMip&);
51     /// \e
52     ~CbcMip();
53     /// \e
54     virtual CbcMip* newSolver() const;
55     /// \e
56     virtual CbcMip* cloneSolver() const;
57 
58   protected:
59 
60     virtual const char* _solverName() const;
61 
62     virtual int _addCol();
63     virtual int _addRow();
64     virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
65 
66     virtual void _eraseCol(int i);
67     virtual void _eraseRow(int i);
68 
69     virtual void _eraseColId(int i);
70     virtual void _eraseRowId(int i);
71 
72     virtual void _getColName(int col, std::string& name) const;
73     virtual void _setColName(int col, const std::string& name);
74     virtual int _colByName(const std::string& name) const;
75 
76     virtual void _getRowName(int row, std::string& name) const;
77     virtual void _setRowName(int row, const std::string& name);
78     virtual int _rowByName(const std::string& name) const;
79 
80     virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);
81     virtual void _getRowCoeffs(int i, InsertIterator b) const;
82 
83     virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);
84     virtual void _getColCoeffs(int i, InsertIterator b) const;
85 
86     virtual void _setCoeff(int row, int col, Value value);
87     virtual Value _getCoeff(int row, int col) const;
88 
89     virtual void _setColLowerBound(int i, Value value);
90     virtual Value _getColLowerBound(int i) const;
91     virtual void _setColUpperBound(int i, Value value);
92     virtual Value _getColUpperBound(int i) const;
93 
94     virtual void _setRowLowerBound(int i, Value value);
95     virtual Value _getRowLowerBound(int i) const;
96     virtual void _setRowUpperBound(int i, Value value);
97     virtual Value _getRowUpperBound(int i) const;
98 
99     virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
100     virtual void _getObjCoeffs(InsertIterator b) const;
101 
102     virtual void _setObjCoeff(int i, Value obj_coef);
103     virtual Value _getObjCoeff(int i) const;
104 
105     virtual void _setSense(Sense sense);
106     virtual Sense _getSense() const;
107 
108     virtual ColTypes _getColType(int col) const;
109     virtual void _setColType(int col, ColTypes col_type);
110 
111     virtual SolveExitStatus _solve();
112     virtual ProblemType _getType() const;
113     virtual Value _getSol(int i) const;
114     virtual Value _getSolValue() const;
115 
116     virtual void _clear();
117 
118     virtual void _messageLevel(MessageLevel level);
119     void _applyMessageLevel();
120 
121     int _message_level;
122 
123 
124 
125   };
126 
127 }
128 
129 #endif
130