Package org.refcodes.observer

Interface ObserverDescriptor<E extends GenericEvent<?>,O extends Observer<E>,EM extends EventMatcher<E>>

Type Parameters:

E - the element type

O - the generic type

EM - the generic type

All Superinterfaces:

Observer<E>

All Known Implementing Classes:

ObserverDescriptorImpl

public interface ObserverDescriptor<E extends GenericEvent<?>,O extends Observer<E>,EM extends EventMatcher<E>>
extends Observer<E>

This ObserverDescriptor describes the Observer, i.e. in some cases an Observer requires an EventMatcher which determines which GenericActionEvent instances to pass to the Observer. The ObserverDescriptor is itself an Observer calling the EventMatcher to determine whether to delegate the GenericActionEvent to contained Observer or not.

Method Summary

Modifier and Type	Method	Description
EM	getEventMatcher()	Returns the EventMatcher associated with the given Observer.
O	getObserver()	Returns the Observer associated with the given EventMatcher.

Methods inherited from interface org.refcodes.observer.Observer

onEvent

Method Detail

getObserver

O getObserver()

Returns the Observer associated with the given EventMatcher.

Returns:

The Observer as it is being managed by the ObserverDescriptor.

getEventMatcher

EM getEventMatcher()

Returns the EventMatcher associated with the given Observer.

Returns:

The EventMatcher as it is being managed by the ObserverDescriptor.