org.springframework.integration.handler
Class DefaultMessageHandler

java.lang.Object
  org.springframework.integration.handler.AbstractMessageHandler
      org.springframework.integration.handler.DefaultMessageHandler

All Implemented Interfaces:

org.springframework.beans.factory.InitializingBean, org.springframework.core.Ordered, MessageHandler

public class DefaultMessageHandler
extends AbstractMessageHandler

The default MessageHandler implementation. Creates a Message for the reply payload. The request Message's headers are copied and the request Message's ID is set as this reply Message's correlationId.

Author:

Mark Fisher

Field Summary

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

logger

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

DefaultMessageHandler()

Method Summary

protected Message<?>	createReplyMessage(java.lang.Object result, Message<?> requestMessage) Subclasses must implement this method to generate the reply Message when the return value is not a Message instance.
protected Message<?>	postProcessReplyMessage(Message<?> replyMessage, Message<?> requestMessage) Subclasses must implement this method to process a return value that is already a Message instance.
private Message<?>	prepareReplyMessage(MessageBuilder<?> builder, MessageHeaders requestHeaders)

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

afterPropertiesSet, getOrder, handle, setMethod, setMethodName, setObject, setOrder

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultMessageHandler

public DefaultMessageHandler()

Method Detail

createReplyMessage

protected Message<?> createReplyMessage(java.lang.Object result,
                                        Message<?> requestMessage)

Description copied from class: AbstractMessageHandler

Subclasses must implement this method to generate the reply Message when the return value is not a Message instance.

Specified by:

createReplyMessage in class AbstractMessageHandler

Parameters:

result - the return value from an adapter method, or the Message payload if not acting as an adapter

requestMessage - the original request Message

Returns:

the Message to be sent to the reply MessageTarget

postProcessReplyMessage

protected Message<?> postProcessReplyMessage(Message<?> replyMessage,
                                             Message<?> requestMessage)

Description copied from class: AbstractMessageHandler

Subclasses must implement this method to process a return value that is already a Message instance.

Specified by:

postProcessReplyMessage in class AbstractMessageHandler

Parameters:

replyMessage - the Message returned from an adapter method

requestMessage - the original request Message

Returns:

the Message to be sent to the reply MessageTarget

prepareReplyMessage

private Message<?> prepareReplyMessage(MessageBuilder<?> builder,
                                       MessageHeaders requestHeaders)