org.springframework.integration.handler
Class MessageHandlerDecorator

java.lang.Object
  org.springframework.integration.handler.MessageHandlerDecorator

All Implemented Interfaces:

MessageHandler

public abstract class MessageHandlerDecorator
extends java.lang.Object
implements MessageHandler

A message handler implementation that intercepts calls to another handler.

Author:

Mark Fisher

Field Summary

private MessageHandler

handler

Constructor Summary

MessageHandlerDecorator()

MessageHandlerDecorator(MessageHandler handler)

Method Summary

Message<?>	handle(Message<?> message)
abstract Message<?>	handleInternal(Message<?> message, MessageHandler handler) The handler method for subclasses to implement.
void	setHandler(MessageHandler handler)

Methods inherited from class java.lang.Object

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

Field Detail

handler

private MessageHandler handler

Constructor Detail

MessageHandlerDecorator

public MessageHandlerDecorator(MessageHandler handler)

MessageHandlerDecorator

public MessageHandlerDecorator()

Method Detail

setHandler

public void setHandler(MessageHandler handler)

handle

public final Message<?> handle(Message<?> message)

Specified by:

handle in interface MessageHandler

handleInternal

public abstract Message<?> handleInternal(Message<?> message,
                                          MessageHandler handler)

The handler method for subclasses to implement.

Parameters:

message - the message to handle

handler - the intercepted handler

Returns:

a reply message or null