| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.database; |
| |
| /** |
| * A specialization of Observable for ContentObserver that provides methods for |
| * invoking the various callback methods of ContentObserver. |
| */ |
| public class ContentObservable extends Observable<ContentObserver> { |
| |
| @Override |
| public void registerObserver(ContentObserver observer) { |
| super.registerObserver(observer); |
| } |
| |
| /** |
| * invokes dispatchUpdate on each observer, unless the observer doesn't want |
| * self-notifications and the update is from a self-notification |
| * @param selfChange |
| */ |
| public void dispatchChange(boolean selfChange) { |
| synchronized(mObservers) { |
| for (ContentObserver observer : mObservers) { |
| if (!selfChange || observer.deliverSelfNotifications()) { |
| observer.dispatchChange(selfChange); |
| } |
| } |
| } |
| } |
| |
| /** |
| * invokes onChange on each observer |
| * @param selfChange |
| */ |
| public void notifyChange(boolean selfChange) { |
| synchronized(mObservers) { |
| for (ContentObserver observer : mObservers) { |
| observer.onChange(selfChange); |
| } |
| } |
| } |
| } |