org.mule.routing
Classes 
AbstractAggregator
AbstractCatchAllStrategy
AbstractCorrelationAggregator
AbstractMatchingRouter
AbstractSelectiveRouter
AbstractSplitter
ChoiceRouter
CollectionSplitter
DefaultRouterResultsHandler
EventGroup
ExpressionMessageInfoMapping
ExpressionSplitter
FirstSuccessful
ForwardingCatchAllStrategy
IdempotentMessageFilter
IdempotentSecureHashMessageFilter
LoggingCatchAllStrategy
MessageChunkAggregator
MessageChunkSplitter
MessageFilter
MessageProcessorFilterPair
MuleMessageInfoMapping
Resequencer
RoundRobin
ServiceCatchAllStrategy
SimpleCollectionAggregator
WireTap
Enums 
CorrelationMode
Exceptions 
AggregationException