## org.springframework.context.event
Interface ApplicationEventMulticaster

All Known Implementing Classes:
  AbstractApplicationEventMulticaster, SimpleApplicationEventMulticaster

    public interface ApplicationEventMulticaster

Interface to be implemented by objects that can manage a number of `ApplicationListener` objects, and publish events to them.

An `ApplicationEventPublisher`, typically a Spring `ApplicationContext`, can use an ApplicationEventMulticaster as a delegate for actually publishing events.

Author:
  Rod Johnson, Juergen Hoeller

Method Summary
`void` `addApplicationListener(ApplicationListener listener)` Add a listener to be notified of all events.
`void` `addApplicationListenerBean(String listenerBeanName)` Add a listener bean to be notified of all events.
`void` `multicastEvent(ApplicationEvent event)` Multicast the given application event to appropriate listeners.
`void` `removeAllListeners()` Remove all listeners registered with this multicaster.
`void` `removeApplicationListener(ApplicationListener listener)` Remove a listener from the notification list.
`void` `removeApplicationListenerBean(String listenerBeanName)` Remove a listener bean from the notification list.

Method Detail

### addApplicationListener

    void addApplicationListener(ApplicationListener listener)

  Add a listener to be notified of all events.

  Parameters:
    `listener` - the listener to add

### addApplicationListenerBean

    void addApplicationListenerBean(String listenerBeanName)

  Add a listener bean to be notified of all events.

  Parameters:
    `listenerBeanName` - the name of the listener bean to add

### removeApplicationListener

    void removeApplicationListener(ApplicationListener listener)

  Remove a listener from the notification list.

  Parameters:
    `listener` - the listener to remove

### removeApplicationListenerBean

    void removeApplicationListenerBean(String listenerBeanName)

  Remove a listener bean from the notification list.

  Parameters:
    `listenerBeanName` - the name of the listener bean to add

### removeAllListeners

    void removeAllListeners()

  Remove all listeners registered with this multicaster.

  After a remove call, the multicaster will perform no action on event notification until new listeners are being registered.

### multicastEvent

    void multicastEvent(ApplicationEvent event)

  Multicast the given application event to appropriate listeners.

  Parameters:
    `event` - the event to multicast