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}