/* $Id: CbcStatistics.hpp 1573 2011-01-05 01:12:36Z lou $ */
// Copyright (C) 2005, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

#ifndef CbcStatistics_H
#define CbcStatistics_H

#include "CbcModel.hpp"

/** For gathering statistics */

class CbcStatistics {
public:
    // Default Constructor
    CbcStatistics ();
    // Branch
    CbcStatistics(CbcNode * node, CbcModel * model);

    ~CbcStatistics();
    // Copy
    CbcStatistics(const CbcStatistics & rhs);
    // Assignment
    CbcStatistics& operator=(const CbcStatistics & rhs);
    // Update at end of branch
    void endOfBranch(int numberIterations, double objectiveValue);
    // Update number of infeasibilities
    void updateInfeasibility(int numberInfeasibilities);
    // Branch found to be infeasible by chooseBranch
    void sayInfeasible();
    // Just prints
    void print(const int * sequenceLookup = NULL) const;
    // Node number
    inline int node() const {
        return id_;
    }
    // Parent node number
    inline int parentNode() const {
        return parentId_;
    }
    // depth
    inline int depth() const {
        return depth_;
    }
    // way
    inline int way() const {
        return way_;
    }
    // value
    inline double value() const {
        return value_;
    }
    // starting objective
    inline double startingObjective() const {
        return startingObjective_;
    }
    // Unsatisfied at beginning
    inline int startingInfeasibility() const {
        return startingInfeasibility_;
    }
    // starting objective
    inline double endingObjective() const {
        return endingObjective_;
    }
    // Unsatisfied at end
    inline int endingInfeasibility() const {
        return endingInfeasibility_;
    }
    // Number iterations
    inline int numberIterations() const {
        return numberIterations_;
    }

protected:
    // Data
    /// Value
    double value_;
    /// Starting objective
    double startingObjective_;
    /// Ending objective
    double endingObjective_;
    /// id
    int id_;
    /// parent id
    int parentId_;
    /// way -1 or +1 is first branch -10 or +10 is second branch
    int way_;
    /// sequence number branched on
    int sequence_;
    /// depth
    int depth_;
    /// starting number of integer infeasibilities
    int startingInfeasibility_;
    /// ending number of integer infeasibilities
    int endingInfeasibility_;
    /// number of iterations
    int numberIterations_;
};

#endif