001 package net.sf.cpsolver.studentsct.heuristics.studentord;
002
003 import java.util.ArrayList;
004 import java.util.Collections;
005 import java.util.List;
006
007 import net.sf.cpsolver.ifs.util.DataProperties;
008 import net.sf.cpsolver.studentsct.model.Student;
009
010 /**
011 * Return the given set of students in a random order
012 *
013 * @version StudentSct 1.2 (Student Sectioning)<br>
014 * Copyright (C) 2007 - 2010 Tomas Muller<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
030 * <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
031 */
032 public class StudentRandomOrder implements StudentOrder {
033
034 public StudentRandomOrder(DataProperties config) {
035 }
036
037 /** Return the given set of students in a random order */
038 @Override
039 public List<Student> order(List<Student> students) {
040 List<Student> ret = new ArrayList<Student>(students);
041 Collections.shuffle(ret);
042 return ret;
043 }
044
045 }