org.apache.shiro.event.support

Interface EventListenerResolver

All Known Implementing Classes:

AnnotationEventListenerResolver

public interface EventListenerResolver

An EventListenerResolver knows how to resolve (either create or lookup) EventListener instances as a result of inspecting a subscriber object, mostly likely a Subscribe-annotated object instance.

This interface exists primarily as a support concept for the DefaultEventBus implementation. Custom implementations of this interface can be configured on a DefaultEventBus instance to determine exactly how a subscriber receives events.

For example, the AnnotationEventListenerResolver will inspect a runtime object for Subscribe-annotated methods, and for each method found, return an EventListener instance representing the method to invoke.

Since:

1.3

See Also:

AnnotationEventListenerResolver, SingleArgumentMethodEventListener

Method Summary

Modifier and Type	Method and Description
List<EventListener>	getEventListeners(Object instance) Returns EventListener instances as a result of inspecting a subscriber object, mostly likely with Subscribe-annotated methods.

Method Detail

getEventListeners

List<EventListener> getEventListeners(Object instance)

Returns EventListener instances as a result of inspecting a subscriber object, mostly likely with Subscribe-annotated methods.

Parameters:

instance - the subscriber instance for which EventListener instances should be acquired.

Returns:

EventListener instances as a result of inspecting a subscriber object.