92 lines
2.7 KiB
Java
92 lines
2.7 KiB
Java
|
/* java.beans.beancontext.BeanContextEvent
|
||
|
|
Copyright (C) 1999 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
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., 59 Temple Place, Suite 330, Boston, MA
|
||
|
|
02111-1307 USA.
|
||
|
|
|
||
|
|
As a special exception, if you link this library with other files to
|
||
|
|
produce an executable, this library does not by itself cause the
|
||
|
|
resulting executable to be covered by the GNU General Public License.
|
||
|
|
This exception does not however invalidate any other reasons why the
|
||
|
|
executable file might be covered by the GNU General Public License. */
|
||
|
|
|
||
|
|
|
||
|
|
package java.beans.beancontext;
|
||
|
|
|
||
|
|
import java.util.EventObject;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generic superclass for events fired by <code>BeanContext</code>s.
|
||
|
|
*
|
||
|
|
* @author John Keiser
|
||
|
|
* @since JDK1.2
|
||
|
|
*/
|
||
|
|
|
||
|
|
public abstract class BeanContextEvent extends EventObject {
|
||
|
|
/**
|
||
|
|
* The <code>BeanContext</code> that most recently passed this
|
||
|
|
* event on.
|
||
|
|
*/
|
||
|
|
protected BeanContext propagatedFrom;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a new event, from the specified <code>BeanContext</code>.
|
||
|
|
* <code>propagatedFrom</code> will be initialized to
|
||
|
|
* <code>null</code>.
|
||
|
|
*
|
||
|
|
* @param source the source of the event.
|
||
|
|
*/
|
||
|
|
protected BeanContextEvent(BeanContext source) {
|
||
|
|
super(source);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the <code>BeanContext</code> that originated this event.
|
||
|
|
* @return the originator of this event.
|
||
|
|
*/
|
||
|
|
public BeanContext getBeanContext() {
|
||
|
|
return (BeanContext)getSource();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the most recent propagator of this event.
|
||
|
|
* If this value is <code>null</code>, you have received the event
|
||
|
|
* straight from the source.
|
||
|
|
*
|
||
|
|
* @return the most recent propagator of this event.
|
||
|
|
*/
|
||
|
|
public BeanContext getPropagatedFrom() {
|
||
|
|
return propagatedFrom;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tell whether this event has been propagated.
|
||
|
|
* @return <code>true</code> iff <code>getPropagatedFrom() != null</code>.
|
||
|
|
*/
|
||
|
|
public boolean isPropagated() {
|
||
|
|
return propagatedFrom != null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the most recent propagator of this event.
|
||
|
|
* @param propagator the most recent propagator of this event.
|
||
|
|
*/
|
||
|
|
public void setPropagatedFrom(BeanContext propagator) {
|
||
|
|
propagatedFrom = propagator;
|
||
|
|
}
|
||
|
|
}
|