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.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 {
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(Object obj1, Object obj2) {
043                    Layout layout1 = (Layout)obj1;
044                    Layout layout2 = (Layout)obj2;
045    
046                    Long groupId1 = new Long(layout1.getGroupId());
047                    Long groupId2 = new Long(layout2.getGroupId());
048    
049                    int value = groupId1.compareTo(groupId2);
050    
051                    if (value != 0) {
052                            if (_ascending) {
053                                    return value;
054                            }
055                            else {
056                                    return -value;
057                            }
058                    }
059    
060                    Long layoutId1 = new Long(layout1.getLayoutId());
061                    Long layoutId2 = new Long(layout2.getLayoutId());
062    
063                    value = layoutId1.compareTo(layoutId2);
064    
065                    if (_ascending) {
066                            return value;
067                    }
068                    else {
069                            return -value;
070                    }
071            }
072    
073            @Override
074            public String getOrderBy() {
075                    if (_ascending) {
076                            return ORDER_BY_ASC;
077                    }
078                    else {
079                            return ORDER_BY_DESC;
080                    }
081            }
082    
083            @Override
084            public String[] getOrderByFields() {
085                    return ORDER_BY_FIELDS;
086            }
087    
088            @Override
089            public boolean isAscending() {
090                    return _ascending;
091            }
092    
093            private boolean _ascending;
094    
095    }