org.mule.routing
Class Resequencer

java.lang.Object
  org.mule.processor.AbstractInterceptingMessageProcessor
      org.mule.routing.AbstractAggregator
          org.mule.routing.Resequencer

All Implemented Interfaces:

FlowConstructAware, MuleContextAware, Initialisable, Startable, Stoppable, InterceptingMessageProcessor, MessageProcessor, Aggregator, MessageSource

public class Resequencer
extends AbstractAggregator

Resequencer is used to resequence events according to their dispatch sequence in the correlation group. When the message splitter router splits an event it assigns a correlation sequence to the individual message parts so that another router such as the Resequencer can receive the parts and reorder or merge them.

EIP Reference: http://www.eaipatterns.com/Resequencer.html

Field Summary

protected Comparator

eventComparator

Fields inherited from class org.mule.routing.AbstractAggregator

eventCorrelator, flowConstruct, messageInfoMapping, muleContext

Fields inherited from class org.mule.processor.AbstractInterceptingMessageProcessor

logger, next, notificationHandler

Fields inherited from interface org.mule.api.lifecycle.Initialisable

PHASE_NAME

Fields inherited from interface org.mule.api.lifecycle.Startable

PHASE_NAME

Fields inherited from interface org.mule.api.lifecycle.Stoppable

PHASE_NAME

Constructor Summary

Resequencer()

Method Summary

protected EventCorrelatorCallback	getCorrelatorCallback(MuleContext muleContext)
Comparator	getEventComparator()
void	initialise() Method used to perform any initialisation work.
MuleEvent	process(MuleEvent event) Invokes the MessageProcessor.
void	setEventComparator(Comparator eventComparator)

Methods inherited from class org.mule.routing.AbstractAggregator

expireAggregation, getTimeout, isFailOnTimeout, setFailOnTimeout, setFlowConstruct, setMessageInfoMapping, setMuleContext, setTimeout, start, stop

Methods inherited from class org.mule.processor.AbstractInterceptingMessageProcessor

fireNotification, getMuleContext, processNext, setListener, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

eventComparator

protected Comparator eventComparator

Constructor Detail

Resequencer

public Resequencer()

Method Detail

initialise

public void initialise()
                throws InitialisationException

Description copied from interface: Initialisable

Method used to perform any initialisation work. If a fatal error occurs during initialisation an InitialisationException should be thrown, causing the Mule instance to shutdown. If the error is recoverable, say by retrying to connect, a RecoverableException should be thrown. There is no guarantee that by throwing a Recoverable exception that the Mule instance will not shut down.

Specified by:

initialise in interface Initialisable

Overrides:

initialise in class AbstractAggregator

Throws:

InitialisationException - if a fatal error occurs causing the Mule instance to shutdown

RecoverableException - if an error occurs that can be recovered from

getEventComparator

public Comparator getEventComparator()

setEventComparator

public void setEventComparator(Comparator eventComparator)

getCorrelatorCallback

protected EventCorrelatorCallback getCorrelatorCallback(MuleContext muleContext)

Specified by:

getCorrelatorCallback in class AbstractAggregator

process

public MuleEvent process(MuleEvent event)
                  throws MuleException

Description copied from interface: MessageProcessor

Invokes the MessageProcessor.

Specified by:

process in interface MessageProcessor

Overrides:

process in class AbstractAggregator

Parameters:

event - MuleEvent to be processed

Returns:

optional response MuleEvent

Throws:

MuleException