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1   /*
2    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
3    * The software in this package is published under the terms of the CPAL v1.0
4    * license, a copy of which has been included with this distribution in the
5    * LICENSE.txt file.
6    */
7   package org.mule.routing.correlation;
8   
9   import org.mule.api.MuleEvent;
10  
11  import java.util.Comparator;
12  
13  /**
14   * <code>CorrelationSequenceComparator</code> is a {@link Comparator} for
15   * {@link MuleEvent}s using their respective correlation sequences.
16   */
17  public final class CorrelationSequenceComparator implements Comparator<MuleEvent>
18  {
19      public int compare(MuleEvent event1, MuleEvent event2)
20      {
21          int val1 = event1.getMessage().getCorrelationSequence();
22          int val2 = event2.getMessage().getCorrelationSequence();
23  
24          if (val1 == val2)
25          {
26              return 0;
27          }
28          else if (val1 > val2)
29          {
30              return 1;
31          }
32          else
33          {
34              return -1;
35          }
36      }
37  }