001package net.sf.cpsolver.studentsct.heuristics.studentord;
002
003import java.util.ArrayList;
004import java.util.Collections;
005import java.util.List;
006
007import net.sf.cpsolver.ifs.util.DataProperties;
008import 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 Tomáš Müller<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 */
032public 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}