/*
<moBetterAcceptCrit.h>
Copyright (C) DOLPHIN Project-Team, INRIA Lille - Nord Europe, 2006-2010

Sébastien Verel, Arnaud Liefooghe, Jérémie Humeau

This software is governed by the CeCILL license under French law and
abiding by the rules of distribution of free software.  You can  ue,
modify and/ or redistribute the software under the terms of the CeCILL
license as circulated by CEA, CNRS and INRIA at the following URL
"http://www.cecill.info".

In this respect, the user's attention is drawn to the risks associated
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that may mean  that it is complicated to manipulate,  and  that  also
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ParadisEO WebSite : http://paradiseo.gforge.inria.fr
Contact: paradiseo-help@lists.gforge.inria.fr
*/

#ifndef _moBetterAcceptCrit_h
#define _moBetterAcceptCrit_h

#include <acceptCrit/moAcceptanceCriterion.h>
#include <memory/moDummyMemory.h>
#include <comparator/moSolComparator.h>

/**
 * Acceptance Criterion for extreme intensification : accept if the new solution is better than previous one
 */
template< class Neighbor >
class moBetterAcceptCrit : public moAcceptanceCriterion<Neighbor>, public moDummyMemory<Neighbor> {

public:
    typedef typename Neighbor::EOT EOT;

  /*
    constructor with a specific comparator

    @param _comparator the comparison method of two solutions
  */
    moBetterAcceptCrit(moSolComparator<EOT>& _comparator):comparator(_comparator) {}

  /*
    default constructor:
    compare the fitness value: accept if the fitness is higher
  */
    moBetterAcceptCrit():comparator(defaultComparator) {}

    /**
     * Accept if the new solution is better than previous one according to the comparator
     * @param _sol1 the previous solution
     * @param _sol2 the new solution after local search
     * @return true if the new solution is better than previous one
     */
    bool operator()(EOT& _sol1, EOT& _sol2) {
        return comparator(_sol1, _sol2);
    }

private:
    moSolComparator<EOT>& comparator;

    moSolComparator<EOT> defaultComparator;

};

#endif
