PollableChannel (Spring Framework 4.3.30.RELEASE API)

所有超级接口:
MessageChannel
```
public interface PollableChannel
extends MessageChannel
```
A MessageChannel from which messages may be actively received through polling.
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
`Message<?>`	`receive()`	Receive a message from this channel, blocking indefinitely if necessary.
`Message<?>`	`receive(long timeout)`	Receive a message from this channel, blocking until either a message is available or the specified timeout period elapses.

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

- 方法详细资料
  - receive
```
Message<?> receive()
```
    Receive a message from this channel, blocking indefinitely if necessary.
    返回:
    the next available Message or null if interrupted
  - receive
```
Message<?> receive(long timeout)
```
    Receive a message from this channel, blocking until either a message is available or the specified timeout period elapses.
    参数:
    timeout - the timeout in milliseconds or MessageChannel.INDEFINITE_TIMEOUT.
    返回:
    the next available Message or null if the specified timeout period elapses or the message reception is interrupted