| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package android.annotation; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.Target; |
| |
| import static java.lang.annotation.ElementType.CONSTRUCTOR; |
| import static java.lang.annotation.ElementType.METHOD; |
| import static java.lang.annotation.ElementType.PARAMETER; |
| import static java.lang.annotation.ElementType.TYPE; |
| import static java.lang.annotation.RetentionPolicy.SOURCE; |
| |
| /** |
| * Denotes that the annotated method should only be called on a worker thread. |
| * If the annotated element is a class, then all methods in the class should be |
| * called on a worker thread. |
| * <p> |
| * Example: |
| * |
| * <pre> |
| * <code> |
| * @WorkerThread |
| * protected abstract FilterResults performFiltering(CharSequence constraint); |
| * </code> |
| * </pre> |
| * |
| * @memberDoc This method may take several seconds to complete, so it should |
| * only be called from a worker thread. |
| * @hide |
| */ |
| @Retention(SOURCE) |
| @Target({METHOD,CONSTRUCTOR,TYPE,PARAMETER}) |
| public @interface WorkerThread { |
| } |