org.springframework.integration.channel
Class AbstractSubscribableChannel

java.lang.Object
  org.springframework.integration.channel.AbstractMessageChannel
      org.springframework.integration.channel.AbstractSubscribableChannel

All Implemented Interfaces:

org.springframework.beans.factory.BeanNameAware, SubscribableChannel, MessageChannel

Direct Known Subclasses:

DirectChannel, ExecutorChannel, PublishSubscribeChannel

public abstract class AbstractSubscribableChannel
extends AbstractMessageChannel
implements SubscribableChannel

Base implementation of MessageChannel that invokes the subscribed handler(s) by delegating to a MessageDispatcher.

Author:

Mark Fisher

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.integration.channel.AbstractMessageChannel

AbstractMessageChannel.ChannelInterceptorList

Constructor Summary

AbstractSubscribableChannel()

Method Summary

protected boolean	doSend(Message<?> message, long timeout) Subclasses must implement this method.
protected abstract MessageDispatcher	getDispatcher()
boolean	subscribe(MessageHandler handler) Register a MessageHandler as a subscriber to this channel.
boolean	unsubscribe(MessageHandler handle) Remove a MessageHandler from the subscribers of this channel.

Methods inherited from class org.springframework.integration.channel.AbstractMessageChannel

addInterceptor, getInterceptors, getName, send, send, setBeanName, setInterceptors, 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.core.MessageChannel

getName, send, send

Constructor Detail

AbstractSubscribableChannel

public AbstractSubscribableChannel()

Method Detail

subscribe

public boolean subscribe(MessageHandler handler)

Description copied from interface: SubscribableChannel

Register a MessageHandler as a subscriber to this channel.

Specified by:

subscribe in interface SubscribableChannel

unsubscribe

public boolean unsubscribe(MessageHandler handle)

Description copied from interface: SubscribableChannel

Remove a MessageHandler from the subscribers of this channel.

Specified by:

unsubscribe in interface SubscribableChannel

doSend

protected boolean doSend(Message<?> message,
                         long timeout)

Description copied from class: AbstractMessageChannel

Subclasses must implement this method. A non-negative timeout indicates how long to wait if the channel is at capacity (if the value is 0, it must return immediately with or without success). A negative timeout value indicates that the method should block until either the message is accepted or the blocking thread is interrupted.

Specified by:

doSend in class AbstractMessageChannel

getDispatcher

protected abstract MessageDispatcher getDispatcher()