SubscribableChannel (Spring Framework 4.3.30.RELEASE API)

所有超级接口:
MessageChannel
所有已知实现类:
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.
从以下版本开始:
4.0
作者:
Mark Fisher

字段概要
- 从接口继承的字段 org.springframework.messaging.MessageChannel
  INDEFINITE_TIMEOUT

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`boolean`	`subscribe(MessageHandler handler)`	Register a message handler.
`boolean`	`unsubscribe(MessageHandler handler)`	Un-register a message handler.

从接口继承的方法 org.springframework.messaging.MessageChannel
send, send

- 方法详细资料
  - subscribe
```
boolean subscribe(MessageHandler handler)
```
    Register a message handler.
    返回:
    true if the handler was subscribed or false if it was already subscribed.
  - unsubscribe
```
boolean unsubscribe(MessageHandler handler)
```
    Un-register a message handler.
    返回:
    true if the handler was un-registered, or false if was not registered.