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}