Coverage Report - org.mule.api.expression.ExpressionEvaluator
 
Classes in this File Line Coverage Branch Coverage Complexity
ExpressionEvaluator
N/A
N/A
1
 
 1  
 /*
 2  
  * $Id: ExpressionEvaluator.java 19191 2010-08-25 21:05:23Z tcarlson $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 5  
  *
 6  
  * The software in this package is published under the terms of the CPAL v1.0
 7  
  * license, a copy of which has been included with this distribution in the
 8  
  * LICENSE.txt file.
 9  
  */
 10  
 
 11  
 package org.mule.api.expression;
 12  
 
 13  
 import org.mule.api.MuleMessage;
 14  
 import org.mule.api.NamedObject;
 15  
 
 16  
 /**
 17  
  * <code>ExpressionEvaluator</code> extracts a property from the message in a generic
 18  
  * way. i.e. composite properties can be pulled and aggregated depending on this
 19  
  * strategy. This can be used to extract Correlation Ids, Message Ids etc.
 20  
  *
 21  
  * These objects are used to execute property expressions (usually on the
 22  
  * current message) at runtime to extracta dynamic value.
 23  
  */
 24  
 public interface ExpressionEvaluator extends NamedObject
 25  
 {
 26  
     /**
 27  
      * Extracts a single property from the message
 28  
      * 
 29  
      * @param expression the property expression or expression
 30  
      * @param message the message to extract from
 31  
      * @return the result of the extraction or null if the property was not found
 32  
      */
 33  
     Object evaluate(String expression, MuleMessage message);
 34  
 
 35  
 }