| /* |
| * Copyright 2018 Google Inc. |
| * |
| * 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 java.util.concurrent; |
| |
| /** |
| * Emulation of Flow. |
| */ |
| public final class Flow { |
| |
| private Flow() { } |
| |
| /** |
| * Emulation of Publisher. |
| * |
| * @param <T> the published item type |
| */ |
| @FunctionalInterface |
| public interface Publisher<T> { |
| void subscribe(Subscriber<? super T> subscriber); |
| } |
| |
| /** |
| * Emulation of Subscriber. |
| * |
| * @param <T> the subscribed item type |
| */ |
| public interface Subscriber<T> { |
| void onSubscribe(Subscription subscription); |
| |
| void onNext(T item); |
| |
| void onError(Throwable throwable); |
| |
| void onComplete(); |
| } |
| |
| /** |
| * Emulation of Subscription. |
| */ |
| public interface Subscription { |
| void request(long n); |
| |
| void cancel(); |
| } |
| |
| /** |
| * Emulation of Processor. |
| * |
| * @param <T> the subscribed item type |
| * @param <R> the published item type |
| */ |
| public interface Processor<T,R> extends Subscriber<T>, Publisher<R> { |
| } |
| |
| private static final int DEFAULT_BUFFER_SIZE = 256; |
| |
| public static int defaultBufferSize() { |
| return DEFAULT_BUFFER_SIZE; |
| } |
| } |