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1   /*** 
2    * 
3    * Copyright 2004 Protique Ltd
4    * 
5    * Licensed under the Apache License, Version 2.0 (the "License"); 
6    * you may not use this file except in compliance with the License. 
7    * You may obtain a copy of the License at 
8    * 
9    * http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS, 
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
14   * See the License for the specific language governing permissions and 
15   * limitations under the License. 
16   * 
17   **/
18  package org.codehaus.activemq.util;
19  
20  import java.io.Serializable;
21  import java.util.Comparator;
22  
23  /***
24   * A trivial default {@link Comparator} which only works on objects
25   * which are {@link Comparable}
26   *
27   * @version $Revision: 1.1 $
28   */
29  public class DefaultComparator implements Comparator, Serializable {
30      final static long serialVersionUID = 1L;
31  
32      public int compare(Object o1, Object o2) {
33          Comparable c1 = (Comparable) o1;
34          return c1.compareTo(o2);
35      }
36  }