org.apache.camel.processor.aggregate

Class ShareUnitOfWorkAggregationStrategy

java.lang.Object

org.apache.camel.support.ServiceSupport

org.apache.camel.processor.aggregate.ShareUnitOfWorkAggregationStrategy

All Implemented Interfaces:

AggregationStrategy, DelegateAggregationStrategy, Service, ShutdownableService, StatefulService, SuspendableService

public final class ShareUnitOfWorkAggregationStrategy
extends ServiceSupport
implements AggregationStrategy, DelegateAggregationStrategy

An AggregationStrategy which are used when the option shareUnitOfWork is enabled on EIPs such as multicast, splitter or recipientList.

This strategy wraps the actual in use strategy to provide the logic needed for making shareUnitOfWork work.

This strategy is not intended for end users to use.

Field Summary

Fields inherited from class org.apache.camel.support.ServiceSupport

shutdown, shuttingdown, started, starting, stopped, stopping, suspended, suspending

Constructor Summary

Constructors

Constructor and Description
ShareUnitOfWorkAggregationStrategy(AggregationStrategy strategy)

Method Summary

Modifier and Type	Method and Description
Exchange	aggregate(Exchange oldExchange, Exchange newExchange) Aggregates an old and new exchange together to create a single combined exchange
protected void	doStart() Implementations override this method to support customized start/stop.
protected void	doStop() Implementations override this method to support customized start/stop.
AggregationStrategy	getDelegate() Gets the delegated AggregationStrategy
protected void	propagateFailure(Exchange answer, Exchange newExchange)
String	toString()

Methods inherited from class org.apache.camel.support.ServiceSupport

doResume, doShutdown, doSuspend, getStatus, getVersion, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

Methods inherited from class java.lang.Object

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

Constructor Detail

ShareUnitOfWorkAggregationStrategy

public ShareUnitOfWorkAggregationStrategy(AggregationStrategy strategy)

Method Detail

getDelegate

public AggregationStrategy getDelegate()

Description copied from interface: DelegateAggregationStrategy

Gets the delegated AggregationStrategy

Specified by:

getDelegate in interface DelegateAggregationStrategy

aggregate

public Exchange aggregate(Exchange oldExchange,
                          Exchange newExchange)

Description copied from interface: AggregationStrategy

Aggregates an old and new exchange together to create a single combined exchange

Specified by:

aggregate in interface AggregationStrategy

Parameters:

oldExchange - the oldest exchange (is null on first aggregation as we only have the new exchange)

newExchange - the newest exchange (can be null if there was no data possible to acquire)

Returns:

a combined composite of the two exchanges, favor returning the oldExchange whenever possible

propagateFailure

protected void propagateFailure(Exchange answer,
                                Exchange newExchange)

toString

public String toString()

Overrides:

toString in class Object

doStart

protected void doStart()
                throws Exception

Description copied from class: ServiceSupport

Implementations override this method to support customized start/stop.

Important: See ServiceSupport.doStop() for more details.

Specified by:

doStart in class ServiceSupport

Throws:

Exception

See Also:

ServiceSupport.doStop()

doStop

protected void doStop()
               throws Exception

Description copied from class: ServiceSupport

Implementations override this method to support customized start/stop.

Important: Camel will invoke this ServiceSupport.doStop() method when the service is being stopped. This method will also be invoked if the service is still in uninitialized state (eg has not been started). The method is always called to allow the service to do custom logic when the service is being stopped, such as when CamelContext is shutting down.

Specified by:

doStop in class ServiceSupport

Throws:

Exception

See Also:

ServiceSupport.doStart()