org.springframework.integration.transformer
Class MessageTransformingHandler

java.lang.Object
  org.springframework.integration.context.IntegrationObjectSupport
      org.springframework.integration.handler.AbstractMessageHandler
          org.springframework.integration.handler.AbstractReplyProducingMessageHandler
              org.springframework.integration.transformer.MessageTransformingHandler

All Implemented Interfaces:

org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean, org.springframework.core.Ordered, MessageProducer, MessageHandler, ComponentMetadataProvider

public class MessageTransformingHandler
extends AbstractReplyProducingMessageHandler

A reply-producing MessageHandler that delegates to a Transformer instance to modify the received Message and sends the result to its output channel.

Author:

Mark Fisher

Field Summary

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

DEFAULT_SEND_TIMEOUT

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

logger

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

MessageTransformingHandler(Transformer transformer)
Create a MessageTransformingHandler instance that delegates to the provided Transformer.

Method Summary

protected java.lang.Object	handleRequestMessage(Message<?> message) Subclasses must implement this method to handle the request Message.
protected void	onInit() Subclasses may implement this for initialization logic.
protected void	populateComponentMetadata(ComponentMetadata metadata) Subclasses may override this to add attributes to the ComponentMetadata.

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

getOutputChannel, handleMessageInternal, handleResult, sendReplyMessage, setChannelResolver, setOutputChannel, setRequiresReply, setSendTimeout

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

getOrder, handleMessage, resolveReplyChannel, setOrder

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

afterPropertiesSet, getBeanFactory, getBeanName, getChannelResolver, getComponentMetadata, getConversionService, getTaskScheduler, setBeanFactory, setBeanName, setConversionService, setTaskScheduler, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageTransformingHandler

public MessageTransformingHandler(Transformer transformer)

Create a MessageTransformingHandler instance that delegates to the provided Transformer.

Method Detail

populateComponentMetadata

protected void populateComponentMetadata(ComponentMetadata metadata)

Description copied from class: IntegrationObjectSupport

Subclasses may override this to add attributes to the ComponentMetadata.

Overrides:

populateComponentMetadata in class IntegrationObjectSupport

onInit

protected void onInit()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this for initialization logic.

Overrides:

onInit in class IntegrationObjectSupport

handleRequestMessage

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

Description copied from class: AbstractReplyProducingMessageHandler

Subclasses must implement this method to handle the request Message. The return value may be a Message, a MessageBuilder, or any plain Object. The base class will handle the final creation of a reply Message from any of those starting points. If the return value is null, the Message flow will end here.

Specified by:

handleRequestMessage in class AbstractReplyProducingMessageHandler