1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17 package android.database; 18 19 import android.annotation.Nullable; 20 21 import java.util.concurrent.Executor; 22 23 /** 24 * @hide 25 * 26 * Receives callbacks for changes to content. 27 * Must be implemented by objects which are added to a {@link ContentObservable}. 28 */ 29 public abstract class ExecutorContentObserver extends ContentObserver { 30 /** 31 * Creates a content observer that uses an executor for change handling. 32 * 33 * @param executor The executor to run {@link #onChange} on, or null if none. 34 */ ExecutorContentObserver(@ullable Executor executor)35 public ExecutorContentObserver(@Nullable Executor executor) { 36 super(executor, 0); 37 } 38 } 39