1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package java.util.prefs;
19 import java.util.EventListener;
22 * This interface is used to handle preferences change events. The
23 * implementation of this interface can be installed by the {@code Preferences}
27 * @see PreferenceChangeEvent
32 public interface PreferenceChangeListener extends EventListener {
35 * This method gets invoked whenever a preference is added, deleted or
39 * the event instance which describes the changed {@code Preferences}
40 * instance and the preference value.
42 void preferenceChange (PreferenceChangeEvent pce);