Spring Integration

org.springframework.integration.transformer
Class MessageTransformingHandler

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.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

Spring Integration

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