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.shopping.util.comparator;
016    
017    import com.liferay.portal.kernel.util.OrderByComparator;
018    import com.liferay.portlet.shopping.model.ShoppingItem;
019    
020    /**
021     * @author Brian Wing Shun Chan
022     */
023    public class ItemNameComparator extends OrderByComparator {
024    
025            public static final String ORDER_BY_ASC =
026                    "ShoppingItem.categoryId ASC, ShoppingItem.name ASC";
027    
028            public static final String ORDER_BY_DESC =
029                    "ShoppingItem.categoryId DESC, ShoppingItem.name DESC";
030    
031            public static final String[] ORDER_BY_FIELDS = {"categoryId", "name"};
032    
033            public ItemNameComparator() {
034                    this(false);
035            }
036    
037            public ItemNameComparator(boolean ascending) {
038                    _ascending = ascending;
039            }
040    
041            @Override
042            public int compare(Object obj1, Object obj2) {
043                    ShoppingItem item1 = (ShoppingItem)obj1;
044                    ShoppingItem item2 = (ShoppingItem)obj2;
045    
046                    Long categoryId1 = new Long(item1.getCategoryId());
047                    Long categoryId2 = new Long(item2.getCategoryId());
048    
049                    int value = categoryId1.compareTo(categoryId2);
050    
051                    if (value == 0) {
052                            value = item1.getName().toLowerCase().compareTo(
053                                    item2.getName().toLowerCase());
054                    }
055    
056                    if (_ascending) {
057                            return value;
058                    }
059                    else {
060                            return -value;
061                    }
062            }
063    
064            @Override
065            public String getOrderBy() {
066                    if (_ascending) {
067                            return ORDER_BY_ASC;
068                    }
069                    else {
070                            return ORDER_BY_DESC;
071                    }
072            }
073    
074            @Override
075            public String[] getOrderByFields() {
076                    return ORDER_BY_FIELDS;
077            }
078    
079            @Override
080            public boolean isAscending() {
081                    return _ascending;
082            }
083    
084            private boolean _ascending;
085    
086    }