Package org.appng.api.messaging

Class EventRegistry

java.lang.Object

org.appng.api.messaging.EventRegistry

public class EventRegistry
extends Object

A registry for EventHandlers to be used by Receiver implementations.

Author:

, Matthias Müller

See Also:

Receiver.setDefaultHandler(EventHandler), Receiver.registerHandler(EventHandler)

Constructor Summary

Constructors

Constructor	Description
EventRegistry()

Method Summary

Modifier and Type	Method	Description
<E extends Event,H extends EventHandler<E>> List<H>	getHandlers(E event)	Retrieves a list of EventHandlers that have been registered for the given type of Event.
<E extends Event,H extends EventHandler<E>> void	register(H handler)	Registers the given EventHandler
void	setDefaultHandler(EventHandler<? extends Event> defaultHandler)	Set the default EventHandler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EventRegistry

public EventRegistry()

Method Detail

register

public <E extends Event,H extends EventHandler<E>> void register(H handler)

Registers the given EventHandler

Parameters:

handler - the EventHandler to be registered

getHandlers

public <E extends Event,H extends EventHandler<E>> List<H> getHandlers(E event)

Retrieves a list of EventHandlers that have been registered for the given type of Event. If no such handlers have been registered, the list will only contain the default handler.

Parameters:

event - the Event to retrieve the EventHandlers for

Returns:

a list of EventHandlers

See Also:

setDefaultHandler(EventHandler)

setDefaultHandler

public void setDefaultHandler(EventHandler<? extends Event> defaultHandler)

Set the default EventHandler

Parameters:

defaultHandler - the default EventHandler