001package org.cpsolver.studentsct.reservation;
002
003import java.util.Collection;
004import java.util.HashSet;
005import java.util.Set;
006
007import org.cpsolver.studentsct.model.Offering;
008import org.cpsolver.studentsct.model.Student;
009
010/**
011 * Individual restriction. A restriction for a particular student (or students).
012 * 
013 * <br>
014 * <br>
015 * 
016 * @version StudentSct 1.3 (Student Sectioning)<br>
017 *          Copyright (C) 2007 - 2020 Tomáš Müller<br>
018 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
019 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
020 * <br>
021 *          This library is free software; you can redistribute it and/or modify
022 *          it under the terms of the GNU Lesser General Public License as
023 *          published by the Free Software Foundation; either version 3 of the
024 *          License, or (at your option) any later version. <br>
025 * <br>
026 *          This library is distributed in the hope that it will be useful, but
027 *          WITHOUT ANY WARRANTY; without even the implied warranty of
028 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
029 *          Lesser General Public License for more details. <br>
030 * <br>
031 *          You should have received a copy of the GNU Lesser General Public
032 *          License along with this library; if not see
033 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
034 */
035public class IndividualRestriction extends Restriction {
036    private Set<Long> iStudentIds = new HashSet<Long>();
037    
038    /**
039     * Constructor
040     * @param id restriction unique id
041     * @param offering instructional offering on which the restriction is set
042     * @param studentIds one or more students
043     */
044    public IndividualRestriction(long id, Offering offering, Long... studentIds) {
045        super(id, offering);
046        for (Long studentId: studentIds) {
047            iStudentIds.add(studentId);
048        }
049    }
050
051    /**
052     * Constructor
053     * @param id restriction unique id
054     * @param offering instructional offering on which the restriction is set
055     * @param studentIds one or more students
056     */
057    public IndividualRestriction(long id, Offering offering, Collection<Long> studentIds) {
058        super(id, offering);
059        iStudentIds.addAll(studentIds);
060    }
061
062    /**
063     * Restriction is applicable for all students in the restriction
064     */
065    @Override
066    public boolean isApplicable(Student student) {
067        return iStudentIds.contains(student.getId());
068    }
069    
070    /**
071     * Students in the restriction
072     * @return set of student ids associated with this restriction
073     */
074    public Set<Long> getStudentIds() {
075        return iStudentIds;
076    }
077}