gecko-dev/grendel/sources/calypso/util/PreferencesFactory.java

43 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 1.1 (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.
*
* Contributor(s):
*/
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;
}
}