/* class InvocationEvent
*
* Copyright (C) 2001, 2002 R M Pitman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package charva.awt.event;
/**
* An event which executes the <code>run()</code> method on a
* <code>Runnable</code> when dispatched by the AWT event dispatcher thread.
*/
public class InvocationEvent extends AWTEvent
{
private static final long serialVersionUID = 1L;
/**
* Constructs an InvocationEvent with the specified source which
* will execute the Runnable's run() method when dispatched by
* the AWT dispatch thread.
*
* @param source_ the source of this event.
* @param runnable_ the Runnable whose run() method will be called.
* when the run() method has returned.
*/
public InvocationEvent(Object source_, Runnable runnable_) {
this(source_, runnable_, null);
}
/**
* Constructs an InvocationEvent with the specified source which
* will execute the Runnable's run() method when dispatched by
* the AWT dispatch thread. After the run() method has returned,
* the notifier's notifyAll() method will be called.
*
* @param source_ the source of this event.
* @param runnable_ the Runnable whose run() method will be called.
* @param notifier_ the object whose notifyAll() method will be called
* when the run() method has returned.
*/
public InvocationEvent(Object source_, Runnable runnable_,
Object notifier_) {
super(source_, AWTEvent.INVOCATION_EVENT);
_runnable = runnable_;
_notifier = notifier_;
}
/**
* Executes the runnable's run() method and then (if the notifier
* is non-null) calls the notifier's notifyAll() method.
*/
public void dispatch() {
_runnable.run();
if (_notifier != null) {
synchronized (_notifier) {
_notifier.notifyAll();
}
}
}
//====================================================================
// INSTANCE VARIABLES
/** The Runnable whose run() method will be called.
*/
protected Runnable _runnable;
/** The (possibly null) object whose notifyAll() method will be called
* as soon as the Runnable's run() method has returned.
*/
protected Object _notifier;
}