com.google.common.util.concurrent.ForwardingFluentFuture Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* Copyright (C) 2009 The Guava 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
*
* 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 com.google.common.util.concurrent;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.annotations.GwtCompatible;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* {@link FluentFuture} that forwards all calls to a delegate.
*
* Extension
*
* If you want a class like {@code FluentFuture} but with extra methods, we recommend declaring your
* own subclass of {@link ListenableFuture}, complete with a method like {@link #from} to adapt an
* existing {@code ListenableFuture}, implemented atop a {@link ForwardingListenableFuture} that
* forwards to that future and adds the desired methods.
*/
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class ForwardingFluentFuture extends FluentFuture {
private final ListenableFuture delegate;
ForwardingFluentFuture(ListenableFuture delegate) {
this.delegate = checkNotNull(delegate);
}
@Override
public void addListener(Runnable listener, Executor executor) {
delegate.addListener(listener, executor);
}
@Override
public boolean cancel(boolean mayInterruptIfRunning) {
return delegate.cancel(mayInterruptIfRunning);
}
@Override
public boolean isCancelled() {
return delegate.isCancelled();
}
@Override
public boolean isDone() {
return delegate.isDone();
}
@Override
@ParametricNullness
public V get() throws InterruptedException, ExecutionException {
return delegate.get();
}
@Override
@ParametricNullness
public V get(long timeout, TimeUnit unit)
throws InterruptedException, ExecutionException, TimeoutException {
return delegate.get(timeout, unit);
}
@Override
public String toString() {
return delegate.toString();
}
}