org.springframework.integration.splitter

Class ExpressionEvaluatingSplitter

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.handler.AbstractMessageHandler

org.springframework.integration.handler.AbstractMessageProducingHandler

org.springframework.integration.handler.AbstractReplyProducingMessageHandler

org.springframework.integration.splitter.AbstractMessageSplitter

org.springframework.integration.splitter.ExpressionEvaluatingSplitter

All Implemented Interfaces:

Aware, BeanClassLoaderAware, BeanFactoryAware, BeanNameAware, InitializingBean, ApplicationContextAware, Ordered, Orderable, MessageProducer, TrackableComponent, NamedComponent, MessageHandler

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, Gary Russell

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.handler.AbstractMessageProducingHandler

messagingTemplate

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

logger

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
ExpressionEvaluatingSplitter(Expression expression)

Method Summary

Modifier and Type	Method and Description
protected void	doInit()
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, produceOutput, setApplySequence, shouldCopyRequestHeaders

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

doInvokeAdvisedRequestHandler, handleMessageInternal, hasAdviceChain, onInit, setAdviceChain, setBeanClassLoader, setRequiresReply

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

getOutputChannel, sendOutputs, setChannelResolver, setOutputChannel, setOutputChannelName, setSendTimeout, shouldSplitOutput

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

getOrder, handleMessage, setOrder, setShouldTrack

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

afterPropertiesSet, extractTypeIfPossible, getApplicationContext, getApplicationContextId, getBeanFactory, getComponentName, getConversionService, getIntegrationProperties, getIntegrationProperty, getMessageBuilderFactory, getTaskScheduler, setApplicationContext, setBeanFactory, setBeanName, setComponentName, setConversionService, setMessageBuilderFactory, 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.support.context.NamedComponent

getComponentName

Constructor Detail

ExpressionEvaluatingSplitter

public ExpressionEvaluatingSplitter(Expression expression)

Method Detail

doInit

protected void doInit()

Overrides:

doInit 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

Parameters:

message - The message.

Returns:

The result of splitting the message.