PollableChannel (Spring Framework 5.2.12.RELEASE API)

All Superinterfaces:
MessageChannel
```
public interface PollableChannel
extends MessageChannel
```
A MessageChannel from which messages may be actively received through polling.
Since:
4.0
Author:
Mark Fisher

Field Summary
- Fields inherited from interface org.springframework.messaging.MessageChannel
  INDEFINITE_TIMEOUT

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`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.

Methods inherited from interface org.springframework.messaging.MessageChannel
send, send

- Method Detail
  - receive
```
@Nullable
Message<?> receive()
```
    Receive a message from this channel, blocking indefinitely if necessary.
    Returns:
    the next available Message or null if interrupted
  - receive
```
@Nullable
Message<?> receive(long timeout)
```
    Receive a message from this channel, blocking until either a message is available or the specified timeout period elapses.
    Parameters:
    timeout - the timeout in milliseconds or MessageChannel.INDEFINITE_TIMEOUT.
    Returns:
    the next available Message or null if the specified timeout period elapses or the message reception is interrupted