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:

BeanFactoryAware, BeanNameAware, InitializingBean, Ordered, NamedComponent, MessageHandler, MessageProducer, TrackableComponent

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, Oleg Zhurakousky

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

String	getComponentType() Subclasses may implement this method to provide component type information.
protected 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 boolean	shouldCopyRequestHeaders() Subclasses may override this.

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

getMessagingTemplate, handleMessageInternal, setChannelResolver, setOutputChannel, setRequiresReply, setSendTimeout

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, getRequiredMetadataPersister, 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

MessageTransformingHandler

public MessageTransformingHandler(Transformer transformer)

Create a MessageTransformingHandler instance that delegates to the provided Transformer.

Method Detail

getComponentType

public String getComponentType()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this method to provide component type information.

Specified by:

getComponentType in interface NamedComponent

Overrides:

getComponentType in class AbstractMessageHandler

onInit

protected void onInit()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this for initialization logic.

Overrides:

onInit in class AbstractReplyProducingMessageHandler

handleRequestMessage

protected 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

shouldCopyRequestHeaders

protected boolean shouldCopyRequestHeaders()

Description copied from class: AbstractReplyProducingMessageHandler

Subclasses may override this. True by default.

Overrides:

shouldCopyRequestHeaders in class AbstractReplyProducingMessageHandler