62 lines
2.5 KiB
Java
62 lines
2.5 KiB
Java
|
/* ActiveEvent.java -- a self-dispatching event
|
||
|
|
Copyright (C) 2000, 2002 Free Software Foundation
|
||
|
|
|
||
|
|
This file is part of GNU Classpath.
|
||
|
|
|
||
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 2, or (at your option)
|
||
|
|
any later version.
|
||
|
|
|
||
|
|
GNU Classpath 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
|
||
|
|
General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
||
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||
|
|
02110-1301 USA.
|
||
|
|
|
||
|
|
Linking this library statically or dynamically with other modules is
|
||
|
|
making a combined work based on this library. Thus, the terms and
|
||
|
|
conditions of the GNU General Public License cover the whole
|
||
|
|
combination.
|
||
|
|
|
||
|
|
As a special exception, the copyright holders of this library give you
|
||
|
|
permission to link this library with independent modules to produce an
|
||
|
|
executable, regardless of the license terms of these independent
|
||
|
|
modules, and to copy and distribute the resulting executable under
|
||
|
|
terms of your choice, provided that you also meet, for each linked
|
||
|
|
independent module, the terms and conditions of the license of that
|
||
|
|
module. An independent module is a module which is not derived from
|
||
|
|
or based on this library. If you modify this library, you may extend
|
||
|
|
this exception to your version of the library, but you are not
|
||
|
|
obligated to do so. If you do not wish to do so, delete this
|
||
|
|
exception statement from your version. */
|
||
|
|
|
||
|
|
|
||
|
|
package java.awt;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* An interface for events which can dispatch themselves in another thread.
|
||
|
|
* This has two uses: first, if your code is in a critical section, calling a
|
||
|
|
* synchronized method might deadlock. But by using an ActiveEvent to call
|
||
|
|
* the second section, it will not obtain the lock until you have left the
|
||
|
|
* critical section, avoiding deadlock. The second use is for calling
|
||
|
|
* untrusted code. For example, system code should use an ActiveEvent to
|
||
|
|
* invoke user code securely.
|
||
|
|
*
|
||
|
|
* @author Tom Tromey (tromey@cygnus.com)
|
||
|
|
* @since 1.2
|
||
|
|
* @status updated to 1.4
|
||
|
|
*/
|
||
|
|
public interface ActiveEvent
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Dispatch the event, according to what the event needs done. Invoked
|
||
|
|
* automatically if this is placed on the <code>EventDispatchQueue</code>.
|
||
|
|
*/
|
||
|
|
void dispatch();
|
||
|
|
} // interface ActiveEvent
|