MessageCreateDateComparator.java |
1 /** 2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 */ 22 23 package com.liferay.portlet.messageboards.util.comparator; 24 25 import com.liferay.portal.kernel.util.DateUtil; 26 import com.liferay.portal.kernel.util.OrderByComparator; 27 import com.liferay.portlet.messageboards.model.MBMessage; 28 29 /** 30 * <a href="MessageCreateDateComparator.java.html"><b><i>View Source</i></b></a> 31 * 32 * @author Brian Wing Shun Chan 33 * 34 */ 35 public class MessageCreateDateComparator extends OrderByComparator { 36 37 public static String ORDER_BY_ASC = "createDate ASC"; 38 39 public static String ORDER_BY_DESC = "createDate DESC"; 40 41 public static String[] ORDER_BY_FIELDS = {"createDate"}; 42 43 public MessageCreateDateComparator(boolean asc) { 44 _asc = asc; 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 return ORDER_BY_ASC; 65 } 66 else { 67 return ORDER_BY_DESC; 68 } 69 } 70 71 public String[] getOrderByFields() { 72 return ORDER_BY_FIELDS; 73 } 74 75 public boolean isAscending() { 76 return _asc; 77 } 78 79 private boolean _asc; 80 81 }