1 /* 2 * Copyright (C) 2016 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 static java.lang.annotation.ElementType.CONSTRUCTOR; 19 import static java.lang.annotation.ElementType.METHOD; 20 import static java.lang.annotation.ElementType.PARAMETER; 21 import static java.lang.annotation.ElementType.TYPE; 22 import static java.lang.annotation.RetentionPolicy.SOURCE; 23 24 import java.lang.annotation.Retention; 25 import java.lang.annotation.Target; 26 27 /** 28 * Denotes that the annotated method can be called from any thread (e.g. it is 29 * "thread safe".) If the annotated element is a class, then all methods in the 30 * class can be called from any thread. 31 * <p> 32 * The main purpose of this method is to indicate that you believe a method can 33 * be called from any thread; static tools can then check that nothing you call 34 * from within this method or class have more strict threading requirements. 35 * <p> 36 * Example: 37 * 38 * <pre> 39 * <code> 40 * @AnyThread 41 * public void deliverResult(D data) { ... } 42 * </code> 43 * </pre> 44 * 45 * @memberDoc This method is safe to call from any thread. 46 * @hide 47 */ 48 @Retention(SOURCE) 49 @Target({METHOD,CONSTRUCTOR,TYPE,PARAMETER}) 50 public @interface AnyThread { 51 } 52
