| MessageCreateDateComparator.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 2.1 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 */
14
15 package com.liferay.portlet.messageboards.util.comparator;
16
17 import com.liferay.portal.kernel.util.DateUtil;
18 import com.liferay.portal.kernel.util.OrderByComparator;
19 import com.liferay.portlet.messageboards.model.MBMessage;
20
21 /**
22 * <a href="MessageCreateDateComparator.java.html"><b><i>View Source</i></b></a>
23 *
24 * @author Brian Wing Shun Chan
25 */
26 public class MessageCreateDateComparator extends OrderByComparator {
27
28 public static String ORDER_BY_ASC = "createDate ASC";
29
30 public static String ORDER_BY_DESC = "createDate DESC";
31
32 public static String[] ORDER_BY_FIELDS = {"createDate"};
33
34 public MessageCreateDateComparator(boolean asc) {
35 _asc = asc;
36 }
37
38 public int compare(Object obj1, Object obj2) {
39 MBMessage message1 = (MBMessage)obj1;
40 MBMessage message2 = (MBMessage)obj2;
41
42 int value = DateUtil.compareTo(
43 message1.getCreateDate(), message2.getCreateDate());
44
45 if (_asc) {
46 return value;
47 }
48 else {
49 return -value;
50 }
51 }
52
53 public String getOrderBy() {
54 if (_asc) {
55 return ORDER_BY_ASC;
56 }
57 else {
58 return ORDER_BY_DESC;
59 }
60 }
61
62 public String[] getOrderByFields() {
63 return ORDER_BY_FIELDS;
64 }
65
66 public boolean isAscending() {
67 return _asc;
68 }
69
70 private boolean _asc;
71
72 }