org.springframework.messaging

Interface SubscribableChannel

All Superinterfaces:

MessageChannel

All Known Implementing Classes:

AbstractSubscribableChannel, ExecutorSubscribableChannel

public interface SubscribableChannel
extends MessageChannel

A MessageChannel that maintains a registry of subscribers and invokes them to handle messages sent through this channel.

Since:

4.0

Author:

Mark Fisher

Field Summary

Fields inherited from interface org.springframework.messaging.MessageChannel

INDEFINITE_TIMEOUT

Method Summary

Modifier and Type	Method and Description
boolean	subscribe(MessageHandler handler) Register a message handler.
boolean	unsubscribe(MessageHandler handler) Un-register a message handler.

Methods inherited from interface org.springframework.messaging.MessageChannel

send, send

Method Detail

subscribe

boolean subscribe(MessageHandler handler)

Register a message handler.

Returns:

true if the handler was subscribed or false if it was already subscribed.

unsubscribe

boolean unsubscribe(MessageHandler handler)

Un-register a message handler.

Returns:

true if the handler was un-registered, or false if was not registered.