001package net.sf.cpsolver.ifs.solver; 002 003import net.sf.cpsolver.ifs.model.Neighbour; 004import net.sf.cpsolver.ifs.model.Value; 005import net.sf.cpsolver.ifs.model.Variable; 006 007/** 008 * IFS Solver Listener. 009 * 010 * @see Solver 011 * 012 * @version IFS 1.2 (Iterative Forward Search)<br> 013 * Copyright (C) 2006 - 2010 Tomáš Müller<br> 014 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br> 015 * <a href="http://muller.unitime.org">http://muller.unitime.org</a><br> 016 * <br> 017 * This library is free software; you can redistribute it and/or modify 018 * it under the terms of the GNU Lesser General Public License as 019 * published by the Free Software Foundation; either version 3 of the 020 * License, or (at your option) any later version. <br> 021 * <br> 022 * This library is distributed in the hope that it will be useful, but 023 * WITHOUT ANY WARRANTY; without even the implied warranty of 024 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 025 * Lesser General Public License for more details. <br> 026 * <br> 027 * You should have received a copy of the GNU Lesser General Public 028 * License along with this library; if not see <http://www.gnu.org/licenses/>. 029 **/ 030public interface SolverListener<V extends Variable<V, T>, T extends Value<V, T>> { 031 032 /** 033 * A variable was selected 034 * 035 * @param iteration 036 * current iteration 037 * @param variable 038 * selected variable 039 */ 040 public boolean variableSelected(long iteration, V variable); 041 042 /** 043 * A value was selected 044 * 045 * @param iteration 046 * current iteration 047 * @param variable 048 * selected variable 049 * @param value 050 * selected variable 051 */ 052 public boolean valueSelected(long iteration, V variable, T value); 053 054 /** 055 * A neighbour was selected 056 * 057 * @param iteration 058 * current iteration 059 * @param neighbour 060 * neighbour 061 */ 062 public boolean neighbourSelected(long iteration, Neighbour<V, T> neighbour); 063 064}