001package net.sf.cpsolver.coursett.criteria.placement; 002 003import java.util.Collection; 004import java.util.Map; 005 006import net.sf.cpsolver.coursett.criteria.TimetablingCriterion; 007import net.sf.cpsolver.coursett.model.Lecture; 008import net.sf.cpsolver.ifs.util.DataProperties; 009 010/** 011 * Abstract class for all criteria that are to be used only in the placement selection 012 * (do not have any impact on the overall solution value). Such criterion is for instance 013 * the number of hard conflict (values that have to be unassigned before a selected 014 * value can be assigned for the problem to remain consistent). 015 * <br> 016 * 017 * @version CourseTT 1.2 (University Course Timetabling)<br> 018 * Copyright (C) 2006 - 2011 Tomáš Müller<br> 019 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br> 020 * <a href="http://muller.unitime.org">http://muller.unitime.org</a><br> 021 * <br> 022 * This library is free software; you can redistribute it and/or modify 023 * it under the terms of the GNU Lesser General Public License as 024 * published by the Free Software Foundation; either version 3 of the 025 * License, or (at your option) any later version. <br> 026 * <br> 027 * This library is distributed in the hope that it will be useful, but 028 * WITHOUT ANY WARRANTY; without even the implied warranty of 029 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 030 * Lesser General Public License for more details. <br> 031 * <br> 032 * You should have received a copy of the GNU Lesser General Public 033 * License along with this library; if not see 034 * <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>. 035 */ 036public abstract class PlacementSelectionCriterion extends TimetablingCriterion { 037 038 public PlacementSelectionCriterion() { 039 iValueUpdateType = ValueUpdateType.NoUpdate; 040 } 041 042 @Override 043 public double getWeightDefault(DataProperties config) { 044 return 0.0; 045 } 046 047 @Override 048 public void getInfo(Map<String, String> info) { 049 } 050 051 @Override 052 public void getInfo(Map<String, String> info, Collection<Lecture> variables) { 053 } 054 055}