001package net.sf.cpsolver.ifs.criteria; 002 003import java.util.Set; 004 005import net.sf.cpsolver.ifs.model.Model; 006import net.sf.cpsolver.ifs.model.Value; 007import net.sf.cpsolver.ifs.model.Variable; 008import net.sf.cpsolver.ifs.util.DataProperties; 009 010/** 011 * Simple Criterion: Sum of {@link Value#toDouble()}. <br> 012 * <br> 013 * This criterion only counts a sum of values (see {@link Value#toDouble()}) of the assigned variables. 014 * It is an alternative to the default {@link Model#getTotalValue()}. 015 * 016 * @version IFS 1.2 (Iterative Forward Search)<br> 017 * Copyright (C) 2006 - 2011 Tomáš Müller<br> 018 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br> 019 * <a href="http://muller.unitime.org">http://muller.unitime.org</a><br> 020 * <br> 021 * This library is free software; you can redistribute it and/or modify 022 * it under the terms of the GNU Lesser General Public License as 023 * published by the Free Software Foundation; either version 3 of the 024 * License, or (at your option) any later version. <br> 025 * <br> 026 * This library is distributed in the hope that it will be useful, but 027 * WITHOUT ANY WARRANTY; without even the implied warranty of 028 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 029 * Lesser General Public License for more details. <br> 030 * <br> 031 * You should have received a copy of the GNU Lesser General Public 032 * License along with this library; if not see 033 * <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>. 034 */ 035public class AssignedValue<V extends Variable<V, T>, T extends Value<V, T>> extends AbstractCriterion<V, T>{ 036 037 @Override 038 public double getWeightDefault(DataProperties config) { 039 return 1.0; 040 } 041 042 @Override 043 public double getValue(T value, Set<T> conflicts) { 044 double ret = value.toDouble(); 045 if (conflicts != null) 046 for (T conflict: conflicts) 047 ret -= conflict.toDouble(); 048 return ret; 049 } 050 051}