DateComparator.java |
1 /** 2 * Copyright (c) 2000-2008 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.mail.util.comparator; 24 25 import com.liferay.portal.kernel.util.DateUtil; 26 import com.liferay.portlet.mail.model.MailEnvelope; 27 28 import java.util.Comparator; 29 30 /** 31 * <a href="DateComparator.java.html"><b><i>View Source</i></b></a> 32 * 33 * @author Alexander Chow 34 * 35 */ 36 public class DateComparator implements Comparator { 37 38 public DateComparator(boolean asc) { 39 _asc = asc; 40 } 41 42 public int compare(Object obj1, Object obj2) { 43 MailEnvelope mailEvenlope1 = (MailEnvelope)obj1; 44 MailEnvelope mailEvenlope2 = (MailEnvelope)obj2; 45 46 int value = DateUtil.compareTo( 47 mailEvenlope1.getDate(), mailEvenlope2.getDate()); 48 49 if (value == 0) { 50 Long messageId1 = new Long(mailEvenlope1.getMessageId()); 51 Long messageId2 = new Long(mailEvenlope2.getMessageId()); 52 53 value = messageId1.compareTo(messageId2); 54 } 55 56 if (_asc) { 57 return value; 58 } 59 else { 60 return -value; 61 } 62 } 63 64 private boolean _asc; 65 66 }