PropertyExtractor


1   /*
2    * $Id: PropertyExtractor.java 3798 2006-11-04 04:07:14Z aperepel $
3    * --------------------------------------------------------------------------------------
4    * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.com
5    *
6    * The software in this package is published under the terms of the MuleSource MPL
7    * license, a copy of which has been included with this distribution in the
8    * LICENSE.txt file.
9    */
10  
11  package org.mule.util.properties;
12  
13  /**
14   * <code>PropertyExtractor</code> extracts a property from the message in a generic
15   * way. i.e. composite properties can be pulled and aggregated depending on this
16   * strategy. This can be used to extract Correlation Ids, Message Ids etc.
17   */
18  public interface PropertyExtractor
19  {
20      /**
21       * Extracts a single property from the message
22       * 
23       * @param name the property name or expression
24       * @param message the message to extract from
25       * @return the result of the extraction or null if the property was not found
26       */
27      Object   getProperty(String   name, Object   message);
28  
29  }
30

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