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