Java Preference Remove removeAll(Preferences prefs, boolean deep)

Description

Traverse a preference node and optionally all children nodes and remove any keys found.

License

Open Source License

Declaration

public static void removeAll(Preferences prefs, boolean deep) throws BackingStoreException 

Method Source Code

//package com.java2s;
/*//from w ww  .java  2 s.c o m
 *  PrefsUtil.java
 *  Inertia
 *
 *  Copyright (c) 2004-2005 Hanns Holger Rutz. All rights reserved.
 *
 *   This software 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, june 1991 of the License, or (at your option) any later version.
 *
 *   This software 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 (gpl.txt) along with this software; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *
 *   For further information, please contact Hanns Holger Rutz at
 *   contact@sciss.de
 *
 *
 *  Changelog:
 *      11-Aug-05   copied from de.sciss.eisenkraut.util.PrefsUtil
 */

import java.util.prefs.BackingStoreException;
import java.util.prefs.Preferences;

public class Main {
    /**
     *  Traverse a preference node and optionally all
     *  children nodes and remove any keys found.
     */
    public static void removeAll(Preferences prefs, boolean deep) throws BackingStoreException {
        String[] keys;
        String[] children;
        int i;

        keys = prefs.keys();
        for (i = 0; i < keys.length; i++) {
            prefs.remove(keys[i]);
        }
        if (deep) {
            children = prefs.childrenNames();
            for (i = 0; i < children.length; i++) {
                removeAll(prefs.node(children[i]), deep);
            }
        }
    }
}

Related

1. removeCLOB(Preferences prefs, String key)
2. removeKeys(Preferences prefs, String key, int from, int to)
3. removePref(String prefName, Object obj)
4. resetPreferences()