001    /**
002     * Copyright (c) 2000-present 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.portal.util.comparator;
016    
017    import com.liferay.portal.kernel.util.OrderByComparator;
018    import com.liferay.portal.model.Layout;
019    
020    /**
021     * @author Brian Wing Shun Chan
022     */
023    public class LayoutComparator extends OrderByComparator<Layout> {
024    
025            public static final String ORDER_BY_ASC =
026                    "Layout.groupId ASC, Layout.layoutId ASC";
027    
028            public static final String ORDER_BY_DESC =
029                    "Layout.groupId DESC, Layout.layoutId DESC";
030    
031            public static final String[] ORDER_BY_FIELDS = {"groupId", "layoutId"};
032    
033            public LayoutComparator() {
034                    this(false);
035            }
036    
037            public LayoutComparator(boolean ascending) {
038                    _ascending = ascending;
039            }
040    
041            @Override
042            public int compare(Layout layout1, Layout layout2) {
043                    Long groupId1 = Long.valueOf(layout1.getGroupId());
044                    Long groupId2 = Long.valueOf(layout2.getGroupId());
045    
046                    int value = groupId1.compareTo(groupId2);
047    
048                    if (value != 0) {
049                            if (_ascending) {
050                                    return value;
051                            }
052                            else {
053                                    return -value;
054                            }
055                    }
056    
057                    Long layoutId1 = Long.valueOf(layout1.getLayoutId());
058                    Long layoutId2 = Long.valueOf(layout2.getLayoutId());
059    
060                    value = layoutId1.compareTo(layoutId2);
061    
062                    if (_ascending) {
063                            return value;
064                    }
065                    else {
066                            return -value;
067                    }
068            }
069    
070            @Override
071            public String getOrderBy() {
072                    if (_ascending) {
073                            return ORDER_BY_ASC;
074                    }
075                    else {
076                            return ORDER_BY_DESC;
077                    }
078            }
079    
080            @Override
081            public String[] getOrderByFields() {
082                    return ORDER_BY_FIELDS;
083            }
084    
085            @Override
086            public boolean isAscending() {
087                    return _ascending;
088            }
089    
090            private final boolean _ascending;
091    
092    }