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 */
16package android.support.annotation;
17
18import java.lang.annotation.Documented;
19import java.lang.annotation.Retention;
20import java.lang.annotation.Target;
21
22import static java.lang.annotation.ElementType.CONSTRUCTOR;
23import static java.lang.annotation.ElementType.METHOD;
24import static java.lang.annotation.ElementType.TYPE;
25import static java.lang.annotation.RetentionPolicy.CLASS;
26
27/**
28 * Denotes that the annotated method can be called from any thread (e.g. it is "thread safe".)
29 * If the annotated element is a class, then all methods in the class can be called
30 * from any thread.
31 * <p>
32 * The main purpose of this method is to indicate that you believe a method can be called
33 * from any thread; static tools can then check that nothing you call from within this method
34 * or class have more strict threading requirements.
35 * <p>
36 * Example:
37 * <pre><code>
38 *  &#64;AnyThread
39 *  public void deliverResult(D data) { ... }
40 * </code></pre>
41 */
42@Documented
43@Retention(CLASS)
44@Target({METHOD,CONSTRUCTOR,TYPE})
45public @interface AnyThread {
46}
47