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.portal.util.comparator;
16  
17  import com.liferay.portal.kernel.util.DateUtil;
18  import com.liferay.portal.model.UserTracker;
19  
20  import java.io.Serializable;
21  
22  import java.util.Comparator;
23  
24  /**
25   * <a href="UserTrackerModifiedDateComparator.java.html"><b><i>View Source</i>
26   * </b></a>
27   *
28   * @author Brian Wing Shun Chan
29   */
30  public class UserTrackerModifiedDateComparator
31      implements Comparator<UserTracker>, Serializable {
32  
33      public UserTrackerModifiedDateComparator() {
34          this(false);
35      }
36  
37      public UserTrackerModifiedDateComparator(boolean asc) {
38          _asc = asc;
39      }
40  
41      public int compare(UserTracker userTracker1, UserTracker userTracker2) {
42          int value = DateUtil.compareTo(
43              userTracker1.getModifiedDate(), userTracker2.getModifiedDate());
44  
45          if (_asc) {
46              return value;
47          }
48          else {
49              return -value;
50          }
51      }
52  
53      private boolean _asc;
54  
55  }