| MessageCreateDateComparator.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17 * SOFTWARE.
18 */
19
20 package com.liferay.portlet.messageboards.util.comparator;
21
22 import com.liferay.portal.kernel.util.DateUtil;
23 import com.liferay.portal.kernel.util.OrderByComparator;
24 import com.liferay.portlet.messageboards.model.MBMessage;
25
26 /**
27 * <a href="MessageCreateDateComparator.java.html"><b><i>View Source</i></b></a>
28 *
29 * @author Brian Wing Shun Chan
30 *
31 */
32 public class MessageCreateDateComparator extends OrderByComparator {
33
34 public static String ORDER_BY_ASC_1 = "createDate ASC";
35
36 public static String ORDER_BY_DESC_1 = "createDate DESC";
37
38 public static String ORDER_BY_ASC_2 = "MBMessage.createDate ASC";
39
40 public static String ORDER_BY_DESC_2 = "MBMessage.createDate DESC";
41
42 public MessageCreateDateComparator(boolean asc, boolean useTableNames) {
43 _asc = asc;
44 _useTableNames = useTableNames;
45 }
46
47 public int compare(Object obj1, Object obj2) {
48 MBMessage message1 = (MBMessage)obj1;
49 MBMessage message2 = (MBMessage)obj2;
50
51 int value = DateUtil.compareTo(
52 message1.getCreateDate(), message2.getCreateDate());
53
54 if (_asc) {
55 return value;
56 }
57 else {
58 return -value;
59 }
60 }
61
62 public String getOrderBy() {
63 if (_asc) {
64 if (_useTableNames) {
65 return ORDER_BY_ASC_2;
66 }
67 else {
68 return ORDER_BY_ASC_1;
69 }
70 }
71 else {
72 if (_useTableNames) {
73 return ORDER_BY_DESC_2;
74 }
75 else {
76 return ORDER_BY_DESC_1;
77 }
78 }
79 }
80
81 private boolean _asc;
82 private boolean _useTableNames;
83
84 }