threeD.ui.event
Class EventHandler

java.lang.Object
  threeD.ui.event.EventHandler

public class EventHandler

extends java.lang.Object

An EventHandler object provides an interface for comunication between EventGenerators and EventListeners.

Constructor Summary

EventHandler()
Constructs a new EventHandler object with no listeners.

Method Summary

void	addListener(EventListener listener) Adds the specified EventListener to this EventHandler.
void	fireEvent(Event event) Notifies all current EventListeners that an event has been fired.
EventListener	getListener(int index) Returns the specified EventListener.
int	getTotalListeners() Returns the number of EventListeners currently registered with this EventHandler.
void	removeListener(int index) Removes the specified EventListener from this EventHandler.

Methods inherited from class java.lang.Object

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

Constructor Detail

EventHandler

public EventHandler()

Constructs a new EventHandler object with no listeners.

Method Detail

addListener

public void addListener(EventListener listener)

Adds the specified EventListener to this EventHandler. The listener will be notified through its eventFired method when an event has been fired.

removeListener

public void removeListener(int index)

Removes the specified EventListener from this EventHandler.

getListener

public EventListener getListener(int index)

Returns the specified EventListener.

getTotalListeners

public int getTotalListeners()

Returns the number of EventListeners currently registered with this EventHandler.

fireEvent

public void fireEvent(Event event)

Notifies all current EventListeners that an event has been fired. If the event is an instance of DialogCloseEvent and the Dialog object stored by the event is a registered as a listener with this EventHandler object, the dialog will be removed. If the dialog is registered more than once, only the first instance will be removed.