org.apache.camel.processor.idempotent
Class IdempotentConsumer

java.lang.Object
  extended by org.apache.camel.impl.ServiceSupport
      extended by org.apache.camel.processor.idempotent.IdempotentConsumer
All Implemented Interfaces:
Processor, Service

public class IdempotentConsumer
extends ServiceSupport
implements Processor

An implementation of the Idempotent Consumer pattern.

Version:
$Revision: 35332 $

Constructor Summary
IdempotentConsumer(Expression<Exchange> messageIdExpression, MessageIdRepository messageIdRepository, Processor nextProcessor)
           
 
Method Summary
protected  void doStart()
           
protected  void doStop()
           
 Expression<Exchange> getMessageIdExpression()
           
 MessageIdRepository getMessageIdRepository()
           
 Processor getNextProcessor()
           
protected  void onDuplicateMessage(Exchange exchange, String messageId)
          A strategy method to allow derived classes to overload the behaviour of processing a duplicate message
 void process(Exchange exchange)
          Processes the message exchange
 String toString()
           
 
Methods inherited from class org.apache.camel.impl.ServiceSupport
addChildService, getThreadName, isRunAllowed, isStarted, isStarting, isStopped, isStopping, nextThreadCounter, removeChildService, start, stop
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

IdempotentConsumer

public IdempotentConsumer(Expression<Exchange> messageIdExpression,
                          MessageIdRepository messageIdRepository,
                          Processor nextProcessor)
Method Detail

toString

public String toString()
Overrides:
toString in class Object

process

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

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

getMessageIdExpression

public Expression<Exchange> getMessageIdExpression()

getMessageIdRepository

public MessageIdRepository getMessageIdRepository()

getNextProcessor

public Processor getNextProcessor()

doStart

protected void doStart()
                throws Exception
Specified by:
doStart in class ServiceSupport
Throws:
Exception

doStop

protected void doStop()
               throws Exception
Specified by:
doStop in class ServiceSupport
Throws:
Exception

onDuplicateMessage

protected void onDuplicateMessage(Exchange exchange,
                                  String messageId)
A strategy method to allow derived classes to overload the behaviour of processing a duplicate message

Parameters:
exchange - the exchange
messageId - the message ID of this exchange


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