Class TopicLoadBalancer

  extended by
      extended by org.apache.camel.processor.loadbalancer.LoadBalancerSupport
          extended by org.apache.camel.processor.loadbalancer.TopicLoadBalancer
All Implemented Interfaces:
AsyncProcessor, Navigate<Processor>, Processor, LoadBalancer, Service, ShutdownableService, StatefulService, SuspendableService

public class TopicLoadBalancer
extends LoadBalancerSupport

A LoadBalancer implementations which sends to all destinations (rather like JMS Topics).

The MulticastProcessor is more powerful as it offers option to run in parallel and decide whether or not to stop on failure etc.


Field Summary
Fields inherited from class org.apache.camel.processor.loadbalancer.LoadBalancerSupport
Fields inherited from class
shutdown, shuttingdown, started, starting, stopped, stopping, suspended, suspending
Constructor Summary
Method Summary
protected  Exchange copyExchangeStrategy(Processor processor, Exchange exchange)
          Strategy method to copy the exchange before sending to another endpoint.
 boolean process(Exchange exchange, AsyncCallback callback)
          Processes the message exchange.
 String toString()
Methods inherited from class org.apache.camel.processor.loadbalancer.LoadBalancerSupport
addProcessor, doShutdown, doStart, doStop, getProcessors, hasNext, next, process, removeProcessor
Methods inherited from class
doResume, doSuspend, getStatus, getVersion, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, resume, shutdown, start, stop, suspend
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail


public TopicLoadBalancer()
Method Detail


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.

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


protected Exchange copyExchangeStrategy(Processor processor,
                                        Exchange exchange)
Strategy method to copy the exchange before sending to another endpoint. Derived classes such as the Pipeline will not clone the exchange

processor - the processor that will send the exchange
exchange - the exchange
the current exchange if no copying is required such as for a pipeline otherwise a new copy of the exchange is returned.


public String toString()
toString in class Object

Apache Camel