Package org.springframework.integration.aggregator

Interface CorrelationStrategy

All Known Implementing Classes:
ExpressionEvaluatingCorrelationStrategy, FileAggregator, HeaderAttributeCorrelationStrategy, MethodInvokingCorrelationStrategy
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface 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

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

  • Method Details

    • getCorrelationKey

      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.
      Parameters:
      message - The message.
      Returns:
      The correlation key.