spring DelegatingCompletableFuture 源码
spring DelegatingCompletableFuture 代码
文件路径：/spring-core/src/main/java/org/springframework/util/concurrent/DelegatingCompletableFuture.java
/*
* Copyright 2002-2018 the original author or authors.
*
* 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
*
* https://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 org.springframework.util.concurrent;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Future;
import org.springframework.util.Assert;
/**
* Extension of {@link CompletableFuture} which allows for cancelling
* a delegate along with the {@link CompletableFuture} itself.
*
* @author Juergen Hoeller
* @since 5.0
* @param <T> the result type returned by this Future's {@code get} method
*/
class DelegatingCompletableFuture<T> extends CompletableFuture<T> {
private final Future<T> delegate;
public DelegatingCompletableFuture(Future<T> delegate) {
Assert.notNull(delegate, "Delegate must not be null");
this.delegate = delegate;
}
@Override
public boolean cancel(boolean mayInterruptIfRunning) {
boolean result = this.delegate.cancel(mayInterruptIfRunning);
super.cancel(mayInterruptIfRunning);
return result;
}
}
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