org.springframework.integration.aggregator

Interface CorrelationStrategy

All Known Implementing Classes:

ExpressionEvaluatingCorrelationStrategy, HeaderAttributeCorrelationStrategy, MethodInvokingCorrelationStrategy

public interface CorrelationStrategy

Strategy for determining how messages can be correlated. Implementations should return the correlation key value associated with a particular message.

Author:

Marius Bogoevici, Iwein Fuld

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	getCorrelationKey(Message<?> message) Find the correlation key for the given message.

Method Detail

getCorrelationKey

java.lang.Object getCorrelationKey(Message<?> message)

Find the correlation key for the given message. If no key can be determined the strategy should not return null, but throw an exception.