AbstractSubscribableChannel (Spring Framework 4.3.30.RELEASE API)

java.lang.Object
- org.springframework.messaging.support.AbstractMessageChannel
- - org.springframework.messaging.support.AbstractSubscribableChannel

All Implemented Interfaces:
Aware, BeanNameAware, MessageChannel, SubscribableChannel, InterceptableChannel
Direct Known Subclasses:
ExecutorSubscribableChannel
```
public abstract class AbstractSubscribableChannel
extends AbstractMessageChannel
implements SubscribableChannel
```
Abstract base class for SubscribableChannel implementations.
Since:
4.0
Author:
Rossen Stoyanchev

Nested Class Summary
- Nested classes/interfaces inherited from class org.springframework.messaging.support.AbstractMessageChannel
  AbstractMessageChannel.ChannelInterceptorChain

Field Summary
- Fields inherited from class org.springframework.messaging.support.AbstractMessageChannel
  logger
- Fields inherited from interface org.springframework.messaging.MessageChannel
  INDEFINITE_TIMEOUT

Constructor Summary
Constructors
Constructor Description
AbstractSubscribableChannel()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Set<MessageHandler>`	`getSubscribers()`
`boolean`	`hasSubscription(MessageHandler handler)`
`boolean`	`subscribe(MessageHandler handler)`	Register a message handler.
`boolean`	`unsubscribe(MessageHandler handler)`	Un-register a message handler.

Methods inherited from class org.springframework.messaging.support.AbstractMessageChannel
addInterceptor, addInterceptor, getBeanName, getInterceptors, removeInterceptor, removeInterceptor, send, send, sendInternal, setBeanName, setInterceptors, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

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

- Constructor Detail
  - AbstractSubscribableChannel
```
public AbstractSubscribableChannel()
```
- Method Detail
  - getSubscribers
```
public Set<MessageHandler> getSubscribers()
```
  - hasSubscription
```
public boolean hasSubscription(MessageHandler handler)
```
  - subscribe
```
public boolean subscribe(MessageHandler handler)
```
    Description copied from interface: SubscribableChannel
    Register a message handler.
    Specified by:
    subscribe in interface SubscribableChannel
    Returns:
    true if the handler was subscribed or false if it was already subscribed.
  - unsubscribe
```
public boolean unsubscribe(MessageHandler handler)
```
    Description copied from interface: SubscribableChannel
    Un-register a message handler.
    Specified by:
    unsubscribe in interface SubscribableChannel
    Returns:
    true if the handler was un-registered, or false if was not registered.