mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-25 09:49:17 +08:00
106 lines
3.6 KiB
Java
106 lines
3.6 KiB
Java
|
/* PreferenceChangeEvent - ObjectEvent fired when a Preferences entry changes
|
||
|
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., 59 Temple Place, Suite 330, Boston, MA
|
||
|
02111-1307 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 Preferences entry changes.
|
||
|
* This event is generated when a entry is added, changed or removed.
|
||
|
* When an entry is removed then <code>getNewValue</code> will return null.
|
||
|
* <p>
|
||
|
* Preference change events are only generated for entries in one particular
|
||
|
* preference node. Notification of subnode addition/removal is given by a
|
||
|
* <code>NodeChangeEvent</code>.
|
||
|
*
|
||
|
* @since 1.4
|
||
|
* @author Mark Wielaard (mark@klomp.org)
|
||
|
*/
|
||
|
public class PreferenceChangeEvent extends EventObject {
|
||
|
|
||
|
private static final long serialVersionUID = 793724513368024975L;
|
||
|
|
||
|
/**
|
||
|
* The key of the changed entry.
|
||
|
*/
|
||
|
private final String key;
|
||
|
|
||
|
/**
|
||
|
* The new value of the changed entry, or null when the entry was removed.
|
||
|
*/
|
||
|
private final String newValue;
|
||
|
|
||
|
/**
|
||
|
* Creates a new PreferenceChangeEvent.
|
||
|
*
|
||
|
* @param node The source preference node for which an entry was added,
|
||
|
* changed or removed
|
||
|
* @param key The key of the entry that was added, changed or removed
|
||
|
* @param value The new value of the entry that was added or changed, or
|
||
|
* null when the entry was removed
|
||
|
*/
|
||
|
public PreferenceChangeEvent(Preferences node, String key, String value) {
|
||
|
super(node);
|
||
|
this.key = key;
|
||
|
this.newValue = value;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns the source Preference node from which an entry was added,
|
||
|
* changed or removed.
|
||
|
*/
|
||
|
public Preferences getNode() {
|
||
|
return (Preferences) source;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns the key of the entry that was added, changed or removed.
|
||
|
*/
|
||
|
public String getKey() {
|
||
|
return key;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Returns the new value of the entry that was added or changed, or
|
||
|
* returns null when the entry was removed.
|
||
|
*/
|
||
|
public String getNewValue() {
|
||
|
return newValue;
|
||
|
}
|
||
|
}
|