001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.journal.util.comparator;
016    
017    import com.liferay.portal.kernel.util.OrderByComparator;
018    import com.liferay.portlet.journal.model.JournalStructure;
019    
020    /**
021     * @author Vilmos Papp
022     * @author Brian Wing Shun Chan
023     */
024    public class StructurePKComparator extends OrderByComparator {
025    
026            public static final String ORDER_BY_ASC = "JournalStructure.id ASC";
027    
028            public static final String ORDER_BY_DESC = "JournalStructure.id DESC";
029    
030            public static final String[] ORDER_BY_FIELDS = {"id"};
031    
032            public StructurePKComparator() {
033                    this(false);
034            }
035    
036            public StructurePKComparator(boolean ascending) {
037                    _ascending = ascending;
038            }
039    
040            @Override
041            public int compare(Object obj1, Object obj2) {
042                    JournalStructure structure1 = (JournalStructure)obj1;
043                    JournalStructure structure2 = (JournalStructure)obj2;
044    
045                    int value = 0;
046    
047                    if (structure1.getId() < structure2.getId()) {
048                            value = -1;
049                    }
050                    else if (structure1.getId() > structure2.getId()) {
051                            value = 1;
052                    }
053    
054                    if (_ascending) {
055                            return value;
056                    }
057                    else {
058                            return -value;
059                    }
060            }
061    
062            @Override
063            public String getOrderBy() {
064                    if (_ascending) {
065                            return ORDER_BY_ASC;
066                    }
067                    else {
068                            return ORDER_BY_DESC;
069                    }
070            }
071    
072            @Override
073            public String[] getOrderByFields() {
074                    return ORDER_BY_FIELDS;
075            }
076    
077            @Override
078            public boolean isAscending() {
079                    return _ascending;
080            }
081    
082            private boolean _ascending;
083    
084    }