System

Class Event<T extends EventArgs>

java.lang.Object

System.Event<T>

Type Parameters:

T - The EventArgs instance or subclass to use with this event.

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

Base class for all events in JavaXNA.

Author:

Halofreak1990

Constructor Summary

Constructors

Constructor and Description
Event() Creates a new instance of this Object.

Method Summary

Methods

Modifier and Type	Method and Description
void	addHandler(EventHandler<T> handler) Adds a handler for this event
boolean	hasHandlers() Use this to determine whether you can actually raise the event, since if the list is empty, you'll get an InvalidOperationException.
void	raise(java.lang.Object sender, T e) Raises the event.
void	removeHandler(EventHandler<T> handler) Removes the specified handler for this event

Methods inherited from class java.lang.Object

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

Constructor Detail

Event

public Event()

Creates a new instance of this Object.

Method Detail

hasHandlers

public boolean hasHandlers()

Use this to determine whether you can actually raise the event, since if the list is empty, you'll get an InvalidOperationException.

addHandler

public void addHandler(EventHandler<T> handler)

Adds a handler for this event

Parameters:

handler - The handler to add to this event.

removeHandler

public void removeHandler(EventHandler<T> handler)

Removes the specified handler for this event

Parameters:

handler -

Throws:

InvalidOperationException - Thrown when no event handlers have previously been assigned.

raise

public void raise(java.lang.Object sender,
         T e)

Raises the event.

Parameters:

sender - The Object that raised the event.

e - An instance of System.EventArgs that provides information about the event.

Throws:

InvalidOperationException - Thrown when the event is raised with no event handlers assigned.