File	Doc	Category	Size	Date	Package
EventQueue.java	API Doc	Android 1.5 API	9177	Wed May 06 22:41:54 BST 2009	java.awt

EventQueue

• java.lang.Object

Fields Summary
private final EventQueueCoreAtomicReference	coreRef The core ref.

Constructors Summary
EventQueue(Toolkit t) Instantiates a new event queue. param t the t. setCore(new EventQueueCore(this, t));
public EventQueue() Instantiates a new event queue. setCore(new EventQueueCore(this));

Methods Summary
protected void	dispatchEvent(java.awt.AWTEvent event) Dispatches the specified event. param event the AWTEvent. getCore().dispatchEventImpl(event);
EventQueueCore	getCore() Gets the core. return the core. return coreRef.get();
public static java.awt.AWTEvent	getCurrentEvent() Returns the the currently dispatched event by the EventQueue associated with the calling thread. return the currently dispatched event or null if this method is invoked from a thread other than an event-dispatching thread. EventQueue eq = getSystemEventQueue(); return (eq != null) ? eq.getCurrentEventImpl() : null;
private java.awt.AWTEvent	getCurrentEventImpl() Gets the current event impl. return the current event impl. return getCore().getCurrentEvent();
public static long	getMostRecentEventTime() Gets the most recent event's timestamp. This event was dispatched from the EventQueue associated with the calling thread. return the timestamp of the last Event to be dispatched, or System.currentTimeMillis() if this method is invoked from a thread other than an event-dispatching thread. EventQueue eq = getSystemEventQueue(); return (eq != null) ? eq.getMostRecentEventTimeImpl() : System.currentTimeMillis();
private long	getMostRecentEventTimeImpl() Gets the most recent event time impl. return the most recent event time impl. return getCore().getMostRecentEventTime();
public java.awt.AWTEvent	getNextEvent() Returns an event from the EventQueue and removes it from this queue. return the next AWTEvent. throws InterruptedException is thrown if another thread interrupts this thread. return getCore().getNextEvent();
java.awt.AWTEvent	getNextEventNoWait() Gets the next event no wait. return the next event no wait. return getCore().getNextEventNoWait();
private static java.awt.EventQueue	getSystemEventQueue() Gets the system event queue. return the system event queue. Thread th = Thread.currentThread(); if (th instanceof EventDispatchThread) { return ((EventDispatchThread)th).toolkit.getSystemEventQueueImpl(); } return null;
public static void	invokeAndWait(java.lang.Runnable runnable) Posts an InvocationEvent which executes the run() method on a Runnable when dispatched by the AWT event dispatcher thread and the notifyAll method is called on it immediately after run returns. param runnable the Runnable whose run method should be executed synchronously on the EventQueue. throws InterruptedException if another thread has interrupted this thread. throws InvocationTargetException if an error occurred while running the runnable. if (isDispatchThread()) { throw new Error(); } final Toolkit toolkit = Toolkit.getDefaultToolkit(); final Object notifier = new Object(); // $NON-LOCK-1$ InvocationEvent event = new InvocationEvent(toolkit, runnable, notifier, true); synchronized (notifier) { toolkit.getSystemEventQueueImpl().postEvent(event); notifier.wait(); } Exception exception = event.getException(); if (exception != null) { throw new InvocationTargetException(exception); }
public static void	invokeLater(java.lang.Runnable runnable) Posts an InvocationEvent which executes the run() method on a Runnable when dispatched by the AWT event dispatcher thread. param runnable the Runnable whose run method should be executed synchronously on the EventQueue. Toolkit toolkit = Toolkit.getDefaultToolkit(); InvocationEvent event = new InvocationEvent(toolkit, runnable); toolkit.getSystemEventQueueImpl().postEvent(event);
public static boolean	isDispatchThread() Returns true if the calling thread is the current AWT EventQueue's dispatch thread. return true, if the calling thread is the current AWT EventQueue's dispatch thread; false otherwise. return Thread.currentThread() instanceof EventDispatchThread;
boolean	isEmpty() Checks if the queue is empty. return true, if is empty. return getCore().isEmpty();
public java.awt.AWTEvent	peekEvent() Returns the first event of the EventQueue (without removing it from the queue). return the the first AWT event of the EventQueue. return getCore().peekEvent();
public java.awt.AWTEvent	peekEvent(int id) Returns the first event of the EventQueue with the specified ID (without removing it from the queue). param id the type ID of event. return the first event of the EventQueue with the specified ID. return getCore().peekEvent(id);
protected void	pop() Stops dispatching events using this EventQueue. Any pending events are transferred to the previous EventQueue. throws EmptyStackException is thrown if no previous push was made on this EventQueue. getCore().pop();
public void	postEvent(java.awt.AWTEvent event) Posts a event to the EventQueue. param event AWTEvent. event.isPosted = true; getCore().postEvent(event);
public void	push(java.awt.EventQueue newEventQueue) Replaces the existing EventQueue with the specified EventQueue. Any pending events are transferred to the new EventQueue. param newEventQueue the new event queue. getCore().push(newEventQueue);
void	setCore(EventQueueCore newCore) Sets the core. param newCore the new core. coreRef.set((newCore != null) ? newCore : new EventQueueCore(this));