001package org.cpsolver.coursett.criteria.placement; 002 003import java.util.Collection; 004import java.util.Map; 005 006import org.cpsolver.coursett.criteria.TimetablingCriterion; 007import org.cpsolver.coursett.model.Lecture; 008import org.cpsolver.coursett.model.Placement; 009import org.cpsolver.ifs.assignment.Assignment; 010import org.cpsolver.ifs.util.DataProperties; 011 012 013/** 014 * Abstract class for all criteria that are to be used only in the placement selection 015 * (do not have any impact on the overall solution value). Such criterion is for instance 016 * the number of hard conflict (values that have to be unassigned before a selected 017 * value can be assigned for the problem to remain consistent). 018 * <br> 019 * 020 * @version CourseTT 1.3 (University Course Timetabling)<br> 021 * Copyright (C) 2006 - 2014 Tomáš Müller<br> 022 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br> 023 * <a href="http://muller.unitime.org">http://muller.unitime.org</a><br> 024 * <br> 025 * This library is free software; you can redistribute it and/or modify 026 * it under the terms of the GNU Lesser General Public License as 027 * published by the Free Software Foundation; either version 3 of the 028 * License, or (at your option) any later version. <br> 029 * <br> 030 * This library is distributed in the hope that it will be useful, but 031 * WITHOUT ANY WARRANTY; without even the implied warranty of 032 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 033 * Lesser General Public License for more details. <br> 034 * <br> 035 * You should have received a copy of the GNU Lesser General Public 036 * License along with this library; if not see 037 * <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>. 038 */ 039public abstract class PlacementSelectionCriterion extends TimetablingCriterion { 040 041 public PlacementSelectionCriterion() { 042 setValueUpdateType(ValueUpdateType.NoUpdate); 043 } 044 045 @Override 046 public double getWeightDefault(DataProperties config) { 047 return 0.0; 048 } 049 050 @Override 051 public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info) { 052 } 053 054 @Override 055 public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info, Collection<Lecture> variables) { 056 } 057 058}