92 lines
3.4 KiB
Java
92 lines
3.4 KiB
Java
/* NodeChangeEvent - ObjectEvent fired when a Preference node is added/removed
|
|
Copyright (C) 2001 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., 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.util.prefs;
|
|
|
|
import java.util.EventObject;
|
|
|
|
/**
|
|
* ObjectEvent fired when a Preference node is added/removed.
|
|
* This event is only generated when a new subnode is added or a subnode is
|
|
* removed from a preference node. Changes in the entries of a preference node
|
|
* are indicated with a <code>PreferenceChangeEvent</code>.
|
|
*
|
|
* @since 1.4
|
|
* @author Mark Wielaard (mark@klomp.org)
|
|
*/
|
|
public class NodeChangeEvent extends EventObject {
|
|
|
|
private static final long serialVersionUID =8068949086596572957L;
|
|
|
|
/**
|
|
* The sub node that was added or removed.
|
|
* Defined transient just like <code>EventObject.source</code> since
|
|
* this object should be serializable, but Preferences is in general not
|
|
* serializable.
|
|
*/
|
|
private final transient Preferences child;
|
|
|
|
/**
|
|
* Creates a new NodeChangeEvent.
|
|
*
|
|
* @param parentNode The source preference node from which a subnode was
|
|
* added or removed
|
|
* @param childNode The preference node that was added or removed
|
|
*/
|
|
public NodeChangeEvent(Preferences parentNode, Preferences childNode) {
|
|
super(parentNode);
|
|
child = childNode;
|
|
}
|
|
|
|
/**
|
|
* Returns the source parent preference node from which a subnode was
|
|
* added or removed.
|
|
*/
|
|
public Preferences getParent() {
|
|
return (Preferences) source;
|
|
}
|
|
|
|
/**
|
|
* Returns the child preference subnode that was added or removed.
|
|
* To see wether it is still a valid preference node one has to call
|
|
* <code>event.getChild().nodeExists("")</code>.
|
|
*/
|
|
public Preferences getChild() {
|
|
return child;
|
|
}
|
|
}
|