    001package org.cpsolver.ifs.assignment;
    002
    003import java.util.Comparator;
    004
    005import org.cpsolver.ifs.model.Value;
    006import org.cpsolver.ifs.model.Variable;
    007
    008
    009/**
    010 * Comparator for the {@link AssignmentComparable} objects.
    011 *
    012 *
    013 * @author  Tomáš Müller
    014 * @version IFS 1.3 (Iterative Forward Search)<br>
    015 *          Copyright (C) 2014 Tomáš Müller<br>
    016 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
    017 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
    018 * <br>
    019 *          This library is free software; you can redistribute it and/or modify
    020 *          it under the terms of the GNU Lesser General Public License as
    021 *          published by the Free Software Foundation; either version 3 of the
    022 *          License, or (at your option) any later version. <br>
    023 * <br>
    024 *          This library is distributed in the hope that it will be useful, but
    025 *          WITHOUT ANY WARRANTY; without even the implied warranty of
    026 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    027 *          Lesser General Public License for more details. <br>
    028 * <br>
    029 *          You should have received a copy of the GNU Lesser General Public
    030 *          License along with this library; if not see <a href='http://www.gnu.org/licenses'>http://www.gnu.org/licenses</a>.
    031 * @param <X> A class implementing {@link AssignmentComparable}
    032 * @param <V> Variable
    033 * @param <T> Value
    034 **/
    035public class AssignmentComparator<X extends AssignmentComparable<X, V, T>, V extends Variable<V, T>, T extends Value<V, T>> implements Comparator<X> {
    036    protected Assignment<V, T> iAssignment;
    037
    038    /**
    039     * Create comparator with the given assignment.
    040     * @param assignment current assignment
    041     */
    042    public AssignmentComparator(Assignment<V, T> assignment) {
    043        iAssignment = assignment;
    044    }
    045
    046    @Override
    047    public int compare(X o1, X o2) {
    048        return o1.compareTo(iAssignment, o2);
    049    }
    050
    051}