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