de.verygame.surface.event

Class EventHandler

java.lang.Object

de.verygame.surface.event.EventHandler

Direct Known Subclasses:

ResourceHandler, StageContent

public class EventHandler
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
EventHandler() Construct an event-emitter.

Method Summary

Modifier and Type	Method and Description
void	emitEvent(Event event, java.lang.Object... attachedObjects) Emits an event to all listeners, which are registered for the specific event type.
boolean	isRegistered(EventListener eventListener, Event.EventType eventType) Checks whether an EventListener is registered for a specific event type.
void	register(Event.EventType eventType, EventListener eventListener) Convenience method to register an anonymous listener more comfortable.
void	register(EventListener eventListener, Event.EventType... type) Register an EventListener for a specific event type.
void	unregister(EventListener eventListener, Event.EventType... type) Unregister an EventListener.

Methods inherited from class java.lang.Object

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

Constructor Detail

EventHandler

public EventHandler()

Construct an event-emitter.

Method Detail

register

public void register(Event.EventType eventType,
                     EventListener eventListener)

Convenience method to register an anonymous listener more comfortable.

Parameters:

eventType - event type the listener will listen to

eventListener - listener

register

public void register(EventListener eventListener,
                     Event.EventType... type)

Register an EventListener for a specific event type.

Parameters:

eventListener - EventListener, which should get registered

type - event types the listener will listen to

unregister

public void unregister(EventListener eventListener,
                       Event.EventType... type)

Unregister an EventListener.

Parameters:

eventListener - EventListener, which should get unregistered

isRegistered

public boolean isRegistered(EventListener eventListener,
                            Event.EventType eventType)

Checks whether an EventListener is registered for a specific event type.

Parameters:

eventListener - listener, which should get checked.

Returns:

true if the listener is already registered, false otherwise

emitEvent

public void emitEvent(Event event,
                      java.lang.Object... attachedObjects)

Emits an event to all listeners, which are registered for the specific event type. The events can either be received via EventListener.handleEvent(Event, Object...) or with the help of annotations EventRoute.
Hint: Every event will only be delivered once!

Parameters:

event - type of the event

attachedObjects - objects, which are related to the update.

See Also:

Event