org.springframework.integration.splitter
Class ExpressionEvaluatingSplitter

java.lang.Object
  org.springframework.integration.context.IntegrationObjectSupport
      org.springframework.integration.handler.AbstractMessageHandler
          org.springframework.integration.handler.AbstractReplyProducingMessageHandler
              org.springframework.integration.splitter.AbstractMessageSplitter
                  org.springframework.integration.splitter.ExpressionEvaluatingSplitter

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanClassLoaderAware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean, org.springframework.core.Ordered, NamedComponent, Orderable, MessageHandler, MessageProducer, TrackableComponent

public class ExpressionEvaluatingSplitter
extends AbstractMessageSplitter

A Message Splitter implementation that evaluates the specified SpEL expression. The result of evaluation will typically be a Collection or Array. If the result is not a Collection or Array, then the single Object will be returned as the payload of a single reply Message.

Since:

2.0

Author:

Mark Fisher

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.integration.handler.AbstractReplyProducingMessageHandler

AbstractReplyProducingMessageHandler.RequestHandler

Field Summary

Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport

logger

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

ExpressionEvaluatingSplitter(org.springframework.expression.Expression expression)

Method Summary

void	onInit() Subclasses may implement this for initialization logic.
protected java.lang.Object	splitMessage(Message<?> message) Subclasses must override this method to split the received Message.

Methods inherited from class org.springframework.integration.splitter.AbstractMessageSplitter

getComponentType, handleRequestMessage, setApplySequence

Methods inherited from class org.springframework.integration.handler.AbstractReplyProducingMessageHandler

getMessagingTemplate, handleMessageInternal, setAdviceChain, setBeanClassLoader, setChannelResolver, setOutputChannel, setRequiresReply, setSendTimeout, shouldCopyRequestHeaders

Methods inherited from class org.springframework.integration.handler.AbstractMessageHandler

getOrder, handleMessage, setOrder, setShouldTrack

Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport

afterPropertiesSet, getBeanFactory, getComponentName, getConversionService, getTaskScheduler, setBeanFactory, setBeanName, setComponentName, setConversionService, setTaskScheduler, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.springframework.integration.context.NamedComponent

getComponentName

Constructor Detail

ExpressionEvaluatingSplitter

public ExpressionEvaluatingSplitter(org.springframework.expression.Expression expression)

Method Detail

onInit

public void onInit()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this for initialization logic.

Overrides:

onInit in class AbstractReplyProducingMessageHandler

splitMessage

protected final java.lang.Object splitMessage(Message<?> message)

Description copied from class: AbstractMessageSplitter

Subclasses must override this method to split the received Message. The return value may be a Collection or Array. The individual elements may be Messages, but it is not necessary. If the elements are not Messages, each will be provided as the payload of a Message. It is also acceptable to return a single Object or Message. In that case, a single reply Message will be produced.

Specified by:

splitMessage in class AbstractMessageSplitter