Package com.google.common.util.concurrent

@CheckReturnValue @ParametersAreNonnullByDefault package com.google.common.util.concurrent

Concurrency utilities.

Commonly used types include ListenableFuture and Service.

Commonly used utilities include Futures, MoreExecutors, and ThreadFactoryBuilder.

This package is a part of the open-source Guava library.

Related Packages

Package	Description
com.google.common.util.concurrent.testing

Class	Description
AbstractCheckedFuture<V, X extends Exception>	A delegating wrapper around a ListenableFuture that adds support for the AbstractCheckedFuture.checkedGet() and AbstractCheckedFuture.checkedGet(long, TimeUnit) methods.
AbstractExecutionThreadService	Base class for services that can implement AbstractExecutionThreadService.startUp(), AbstractExecutionThreadService.run() and AbstractExecutionThreadService.shutDown() methods.
AbstractFuture<V>	An abstract implementation of ListenableFuture, intended for advanced users only.
AbstractIdleService	Base class for services that do not need a thread while "running" but may need one during startup and shutdown.
AbstractListeningExecutorService	Abstract ListeningExecutorService implementation that creates ListenableFuture instances for each Runnable and Callable submitted to it.
AbstractScheduledService	Base class for services that can implement AbstractScheduledService.startUp() and AbstractScheduledService.shutDown() but while in the "running" state need to perform a periodic task.
AbstractScheduledService.CustomScheduler	A AbstractScheduledService.Scheduler that provides a convenient way for the AbstractScheduledService to use a dynamically changing schedule.
AbstractScheduledService.CustomScheduler.Schedule	A value object that represents an absolute delay until a task should be invoked.
AbstractScheduledService.Scheduler	A scheduler defines the policy for how the AbstractScheduledService should run its task.
AbstractService	Base class for implementing services that can handle AbstractService.doStart() and AbstractService.doStop() requests, responding to them with AbstractService.notifyStarted() and AbstractService.notifyStopped() callbacks.
AsyncCallable<V>	Computes a value, possibly asynchronously.
AsyncFunction<I,O>	Transforms a value, possibly asynchronously.
AtomicDouble	A double value that may be updated atomically.
AtomicDoubleArray	A double array in which elements may be updated atomically.
AtomicLongMap<K>	A map containing long values that can be atomically updated.
Atomics	Static utility methods pertaining to classes in the java.util.concurrent.atomic package.
Callables	Static utility methods pertaining to the Callable interface.
CheckedFuture<V, X extends Exception>	A CheckedFuture is a ListenableFuture that includes versions of the get methods that can throw a checked exception.
CycleDetectingLockFactory	The CycleDetectingLockFactory creates ReentrantLock instances and ReentrantReadWriteLock instances that detect potential deadlock by checking for cycles in lock acquisition order.
CycleDetectingLockFactory.Policies	Pre-defined CycleDetectingLockFactory.Policy implementations.
CycleDetectingLockFactory.Policy	Encapsulates the action to be taken when a potential deadlock is encountered.
CycleDetectingLockFactory.PotentialDeadlockException	Represents a detected cycle in lock acquisition ordering.
CycleDetectingLockFactory.WithExplicitOrdering<E extends Enum<E>>	A CycleDetectingLockFactory.WithExplicitOrdering provides the additional enforcement of an application-specified ordering of lock acquisitions.
ExecutionError	Error variant of ExecutionException.
ExecutionList	A support class for ListenableFuture implementations to manage their listeners.
FakeTimeLimiter	A TimeLimiter implementation which actually does not attempt to limit time at all.
ForwardingBlockingQueue<E>	A BlockingQueue which forwards all its method calls to another BlockingQueue.
ForwardingCheckedFuture<V, X extends Exception>	A future which forwards all its method calls to another future.
ForwardingCheckedFuture.SimpleForwardingCheckedFuture<V, X extends Exception>	A simplified version of ForwardingCheckedFuture where subclasses can pass in an already constructed CheckedFuture as the delegate.
ForwardingExecutorService	An executor service which forwards all its method calls to another executor service.
ForwardingFuture<V>	A Future which forwards all its method calls to another future.
ForwardingFuture.SimpleForwardingFuture<V>	A simplified version of ForwardingFuture where subclasses can pass in an already constructed Future as the delegate.
ForwardingListenableFuture<V>	A ListenableFuture which forwards all its method calls to another future.
ForwardingListenableFuture.SimpleForwardingListenableFuture<V>	A simplified version of ForwardingListenableFuture where subclasses can pass in an already constructed ListenableFuture as the delegate.
ForwardingListeningExecutorService	A listening executor service which forwards all its method calls to another listening executor service.
FutureCallback<V>	A callback for accepting the results of a Future computation asynchronously.
Futures	Static utility methods pertaining to the Future interface.
Futures.FutureCombiner<V>	A helper to create a new ListenableFuture whose result is generated from a combination of input futures.
JdkFutureAdapters	Utilities necessary for working with libraries that supply plain Future instances.
ListenableFuture<V>	A Future that accepts completion listeners.
ListenableFutureTask<V>	A FutureTask that also implements the ListenableFuture interface.
ListenableScheduledFuture<V>	Helper interface to implement both ListenableFuture and ScheduledFuture.
ListeningExecutorService	An ExecutorService that returns ListenableFuture instances.
ListeningScheduledExecutorService	A ScheduledExecutorService that returns ListenableFuture instances from its ExecutorService methods.
Monitor	A synchronization abstraction supporting waiting on arbitrary boolean conditions.
Monitor.Guard	A boolean condition for which a thread may wait.
MoreExecutors	Factory and utility methods for Executor, ExecutorService, and ThreadFactory.
RateLimiter	A rate limiter.
Runnables	Static utility methods pertaining to the Runnable interface.
Service	An object with an operational state, plus asynchronous Service.startAsync() and Service.stopAsync() lifecycle methods to transition between states.
Service.Listener	A listener for the various state changes that a Service goes through in its lifecycle.
Service.State	The lifecycle states of a service.
ServiceManager	A manager for monitoring and controlling a set of services.
ServiceManager.Listener	A listener for the aggregate state changes of the services that are under management.
SettableFuture<V>	A ListenableFuture whose result can be set by a SettableFuture.set(Object), SettableFuture.setException(Throwable) or SettableFuture.setFuture(ListenableFuture) call.
SimpleTimeLimiter	A TimeLimiter that runs method calls in the background using an ExecutorService.
Striped<L>	A striped Lock/Semaphore/ReadWriteLock.
ThreadFactoryBuilder	A ThreadFactory builder, providing any combination of these features: whether threads should be marked as daemon threads a naming format a thread priority an uncaught exception handler a backing thread factory
TimeLimiter	Produces proxies that impose a time limit on method calls to the proxied object.
UncaughtExceptionHandlers	Factories for Thread.UncaughtExceptionHandler instances.
UncheckedExecutionException	Unchecked variant of ExecutionException.
UncheckedTimeoutException	Unchecked version of TimeoutException.
Uninterruptibles	Utilities for treating interruptible operations as uninterruptible.