Spring Integration

org.springframework.integration.splitter
Class ExpressionEvaluatingSplitter

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

Spring Integration