001package org.cpsolver.studentsct.filter; 002 003import org.cpsolver.studentsct.model.Student; 004 005/** 006 * This student filter accepts students that are not accepted by the provided 007 * student filter. 008 * 009 * @author Tomáš Müller 010 * @version StudentSct 1.3 (Student Sectioning)<br> 011 * Copyright (C) 2007 - 2014 Tomáš Müller<br> 012 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br> 013 * <a href="http://muller.unitime.org">http://muller.unitime.org</a><br> 014 * <br> 015 * This library is free software; you can redistribute it and/or modify 016 * it under the terms of the GNU Lesser General Public License as 017 * published by the Free Software Foundation; either version 3 of the 018 * License, or (at your option) any later version. <br> 019 * <br> 020 * This library is distributed in the hope that it will be useful, but 021 * WITHOUT ANY WARRANTY; without even the implied warranty of 022 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 023 * Lesser General Public License for more details. <br> 024 * <br> 025 * You should have received a copy of the GNU Lesser General Public 026 * License along with this library; if not see 027 * <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>. 028 */ 029 030public class ReverseStudentFilter implements StudentFilter { 031 private StudentFilter iFilter = null; 032 033 /** 034 * Constructor 035 * 036 * @param filter 037 * student filter that is to be reversed 038 */ 039 public ReverseStudentFilter(StudentFilter filter) { 040 iFilter = filter; 041 } 042 043 /** 044 * Accept student. Student is accepted if the provided student filter 045 * refuses him/her. 046 **/ 047 @Override 048 public boolean accept(Student student) { 049 return (iFilter == null ? false : !iFilter.accept(student)); 050 } 051 052 @Override 053 public String getName() { 054 return "NOT " + iFilter.getName(); 055 } 056 057}