com.google.common.util.concurrent.FutureCallback 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).
/*
* Copyright (C) 2011 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 com.google.common.annotations.GwtCompatible;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* A callback for accepting the results of a {@link java.util.concurrent.Future} computation
* asynchronously.
*
* To attach to a {@link ListenableFuture} use {@link Futures#addCallback}.
*
* @author Anthony Zana
* @since 10.0
*/
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface FutureCallback {
/** Invoked with the result of the {@code Future} computation when it is successful. */
void onSuccess(@ParametricNullness V result);
/**
* Invoked when a {@code Future} computation fails or is canceled.
*
* If the future's {@link Future#get() get} method throws an {@link ExecutionException}, then
* the cause is passed to this method. Any other thrown object is passed unaltered.
*/
void onFailure(Throwable t);
}