org.springframework.integration.aggregator

Interface MessageGroupProcessor

All Known Implementing Classes:

AbstractAggregatingMessageGroupProcessor, DefaultAggregatingMessageGroupProcessor, ExpressionEvaluatingMessageGroupProcessor, MethodInvokingMessageGroupProcessor, PassThroughMessageGroupProcessor, ResequencingMessageGroupProcessor, SimpleMessageGroupProcessor

public interface MessageGroupProcessor

A processor for correlated groups of messages.

Author:

Iwein Fuld

See Also:

AbstractCorrelatingMessageHandler

Method Summary

Modifier and Type	Method and Description
Object	processMessageGroup(MessageGroup group) Process the given MessageGroup.

Method Detail

processMessageGroup

Object processMessageGroup(MessageGroup group)

Process the given MessageGroup. Implementations are free to return as few or as many messages based on the invocation as needed. For example an aggregating processor will return only a single message representing the group, while a resequencing processor will return all messages whose preceding sequence has been satisfied.

If a multiple messages are returned the return value must be a Collection<Message>.

Parameters:

group - The message group.

Returns:

The result of processing the group.