Package com.jgcomptech.tools.events

Class EventTarget<T extends Event>

java.lang.Object

com.jgcomptech.tools.events.EventTarget<T>

Type Parameters:

T - the event type to use for the target

Direct Known Subclasses:

Permission, PermissionManager, SessionManager

public class EventTarget<T extends Event>
extends java.lang.Object

Allows object event handler registration and forwards received events to the appropriate registered event handlers.

Since:

1.4.0

Constructor Summary

Constructors

Constructor	Description
EventTarget()

Method Summary

Modifier and Type	Method	Description
void	addEventHandler(EventType<? extends Event> eventType, EventHandler<T> eventHandler)	Sets the specified singleton handler.
boolean	equals(java.lang.Object o)
void	fire(Event event, EventType<? extends Event> eventType)	Fires the handle method in all registered EventHandlers.
EventHandler<T>	getEventHandler(EventType<? extends T> eventType)	Returns the singleton handler assigned to the specified Event Type.
int	hashCode()
void	removeEventHandler(EventType<? extends T> eventType)	Removes the singleton handler assigned to the specified Event Type.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

EventTarget

public EventTarget()

Method Detail

addEventHandler

public final void addEventHandler(EventType<? extends Event> eventType,
                                  EventHandler<T> eventHandler)

Sets the specified singleton handler. There can only be one such handler specified at a time.

Parameters:

eventType - the event type to associate with the given eventHandler

eventHandler - the handler to register, or null to unregister

removeEventHandler

public final void removeEventHandler(EventType<? extends T> eventType)

Removes the singleton handler assigned to the specified Event Type.

Parameters:

eventType - the event type to associate with the given eventHandler

getEventHandler

public final EventHandler<T> getEventHandler(EventType<? extends T> eventType)

Returns the singleton handler assigned to the specified Event Type.

Parameters:

eventType - the event type

Returns:

the singleton handler assigned to the specified Event Type

fire

public final void fire(Event event,
                       EventType<? extends Event> eventType)

Fires the handle method in all registered EventHandlers.

Parameters:

event - the event

eventType - the event type

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object