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.Role;
019    
020    /**
021     * @author Brian Wing Shun Chan
022     */
023    public class RoleDescriptionComparator extends OrderByComparator {
024    
025            public static final String ORDER_BY_ASC =
026                    "Role_.description ASC, Role_.name ASC";
027    
028            public static final String ORDER_BY_DESC =
029                    "Role_.description DESC, Role_.name DESC";
030    
031            public static final String[] ORDER_BY_FIELDS = {"description", "name"};
032    
033            public RoleDescriptionComparator() {
034                    this(false);
035            }
036    
037            public RoleDescriptionComparator(boolean ascending) {
038                    _ascending = ascending;
039            }
040    
041            @Override
042            public int compare(Object obj1, Object obj2) {
043                    Role role1 = (Role)obj1;
044                    Role role2 = (Role)obj2;
045    
046                    int value = role1.getDescription().compareTo(role2.getDescription());
047    
048                    if (value == 0) {
049                            value = role1.getName().compareTo(role2.getName());
050                    }
051    
052                    if (_ascending) {
053                            return value;
054                    }
055                    else {
056                            return -value;
057                    }
058            }
059    
060            @Override
061            public String getOrderBy() {
062                    if (_ascending) {
063                            return ORDER_BY_ASC;
064                    }
065                    else {
066                            return ORDER_BY_DESC;
067                    }
068            }
069    
070            @Override
071            public String[] getOrderByFields() {
072                    return ORDER_BY_FIELDS;
073            }
074    
075            @Override
076            public boolean isAscending() {
077                    return _ascending;
078            }
079    
080            private boolean _ascending;
081    
082    }