pjs/grendel/calypso/util/PreferencesFactory.java

40 строки
1.3 KiB
Java

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*/
package calypso.util;
/** A factory to return the (singleton) preferences object. */
public class PreferencesFactory {
static Preferences fPrefs = null;
/** Return the preferences object. */
public static Preferences Get() {
if (fPrefs == null) {
synchronized(PreferencesFactory.class) {
// Make sure some other thread didn't already make it.
if (fPrefs == null) {
fPrefs = new PreferencesBase();
}
}
}
return fPrefs;
}
}