Class EvaluateExpressionProcessor

  extended by org.apache.camel.processor.EvaluateExpressionProcessor
All Implemented Interfaces:
AsyncProcessor, Processor, Traceable

public class EvaluateExpressionProcessor
extends Object
implements AsyncProcessor, Traceable

A Processor which evaluates an Expression and stores the result as a property on the Exchange with the key Exchange.EVALUATE_EXPRESSION_RESULT.

This processor will in case of evaluation exceptions, set the caused exception on the Exchange.

Constructor Summary
EvaluateExpressionProcessor(Expression expression)
Method Summary
 String getTraceLabel()
          Gets the trace label used for logging when tracing is enabled.
 void process(Exchange exchange)
          Processes the message exchange
 boolean process(Exchange exchange, AsyncCallback callback)
          Processes the message exchange.
 String toString()
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail


public EvaluateExpressionProcessor(Expression expression)
Method Detail


public void process(Exchange exchange)
             throws Exception
Description copied from interface: Processor
Processes the message exchange

Specified by:
process in interface Processor
exchange - the message exchange
Exception - if an internal processing error has occurred.


public boolean process(Exchange exchange,
                       AsyncCallback callback)
Description copied from interface: AsyncProcessor
Processes the message exchange. Similar to Processor.process(org.apache.camel.Exchange), but the caller supports having the exchange asynchronously processed.

If there was a failure processing then the caused Exception would be set on the Exchange.

Specified by:
process in interface AsyncProcessor
exchange - the message exchange
callback - the AsyncCallback will be invoked when the processing of the exchange is completed. If the exchange is completed synchronously, then the callback is also invoked synchronously. The callback should therefore be careful of starting recursive loop.
(doneSync) true to continue execute synchronously, false to continue being executed asynchronously


public String toString()
toString in class Object


public String getTraceLabel()
Description copied from interface: Traceable
Gets the trace label used for logging when tracing is enabled.

The label should be short and precise.

Specified by:
getTraceLabel in interface Traceable
the label

Apache Camel