MessageAvailableConsumer (ActiveMQ 5.17.0 API)

All Superinterfaces:

MessageConsumer

All Known Implementing Classes:

ActiveMQMessageConsumer, ActiveMQQueueReceiver, ActiveMQTopicSubscriber
```
public interface MessageAvailableConsumer
extends MessageConsumer
```
An extended JMS interface that adds the ability to be notified when a message is available for consumption using the receive*() methods which is useful in Ajax style subscription models.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`MessageAvailableListener`	`getAvailableListener()`	Gets the listener used to notify synchronous consumers that there is a message available so that the `MessageConsumer.receiveNoWait()` can be called.
`void`	`setAvailableListener(MessageAvailableListener availableListener)`	Sets the listener used to notify synchronous consumers that there is a message available so that the `MessageConsumer.receiveNoWait()` can be called.

Methods inherited from interface javax.jms.MessageConsumer
close, getMessageListener, getMessageSelector, receive, receive, receiveNoWait, setMessageListener

- Method Detail
  - setAvailableListener
```
void setAvailableListener(MessageAvailableListener availableListener)
```
    Sets the listener used to notify synchronous consumers that there is a message available so that the MessageConsumer.receiveNoWait() can be called.
  - getAvailableListener
```
MessageAvailableListener getAvailableListener()
```
    Gets the listener used to notify synchronous consumers that there is a message available so that the MessageConsumer.receiveNoWait() can be called.