/*
* Copyright (c) 2014, Codename One and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Codename One designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Codename One through http://www.codenameone.com/ if you
* need additional information or have any questions.
*/
package com.codename1.io;
/**
* Respond to changes to the Preferences
*
* @author Miguel Mu\u00f1oz
* @see Preferences
*/
public interface PreferenceListener {
/**
* Respond to a change in the Preference. This method is only called if the value has changed.
*
* @param pref The preference key
* @param priorValue The value prior to the change
* @param revisedValue The new value, which is guaranteed to be different from priorValue
*/
void preferenceChanged(String pref, Object priorValue, Object revisedValue);
}