1 /* 2 * Copyright (C) 2015 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 package android.annotation; 17 18 import java.lang.annotation.Retention; 19 import java.lang.annotation.Target; 20 21 import static java.lang.annotation.ElementType.CONSTRUCTOR; 22 import static java.lang.annotation.ElementType.METHOD; 23 import static java.lang.annotation.ElementType.TYPE; 24 import static java.lang.annotation.RetentionPolicy.SOURCE; 25 26 /** 27 * Denotes that the annotated method should only be called on a worker thread. 28 * If the annotated element is a class, then all methods in the class should be called 29 * on a worker thread. 30 * <p> 31 * Example: 32 * <pre><code> 33 * @WorkerThread 34 * protected abstract FilterResults performFiltering(CharSequence constraint); 35 * </code></pre> 36 * 37 * {@hide} 38 */ 39 @Retention(SOURCE) 40 @Target({METHOD,CONSTRUCTOR,TYPE}) 41 public @interface WorkerThread { 42 }
