org.springframework.integration.channel
Class AbstractSubscribableChannel

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

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean, NamedComponent, SubscribableChannel, TrackableComponent, 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, Oleg Zhurakousky, Gary Russell

Nested Class Summary

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

AbstractMessageChannel.ChannelInterceptorList

Field Summary

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

logger

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, getComponentType, getInterceptors, send, send, setConversionService, setDatatypes, setInterceptors, setShouldTrack

Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport

afterPropertiesSet, getBeanFactory, getComponentName, getConversionService, getTaskScheduler, onInit, setBeanFactory, setBeanName, setComponentName, 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.MessageChannel

send, send

Methods inherited from interface org.springframework.integration.context.NamedComponent

getComponentName

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()