Uses of Interface
java.util.concurrent.Future

Packages that use Future

Package	Description
java.util.concurrent	Utility classes commonly useful in concurrent programming.

Uses of Future in java.util.concurrent

Subinterfaces of Future in java.util.concurrent

Modifier and Type	Interface and Description
interface	RunnableFuture<V> A Future that is Runnable.
interface	RunnableScheduledFuture<V> A ScheduledFuture that is Runnable.
interface	ScheduledFuture<V> A delayed result-bearing action that can be cancelled.

Classes in java.util.concurrent that implement Future

Modifier and Type	Class and Description
class	ForkJoinTask<V> Abstract base class for tasks that run within a ForkJoinPool.
class	FutureTask<V> A cancellable asynchronous computation.
class	RecursiveAction A recursive resultless ForkJoinTask.
class	RecursiveTask<V> A recursive result-bearing ForkJoinTask.

Methods in java.util.concurrent that return Future

Modifier and Type	Method and Description
Future<V>	ExecutorCompletionService.poll()
Future<V>	CompletionService.poll() Retrieves and removes the Future representing the next completed task or null if none are present.
Future<V>	ExecutorCompletionService.poll(long timeout, TimeUnit unit)
Future<V>	CompletionService.poll(long timeout, TimeUnit unit) Retrieves and removes the Future representing the next completed task, waiting if necessary up to the specified wait time if none are yet present.
<T> Future<T>	ScheduledThreadPoolExecutor.submit(Callable<T> task)
<T> Future<T>	ExecutorService.submit(Callable<T> task) Submits a value-returning task for execution and returns a Future representing the pending results of the task.
<T> Future<T>	AbstractExecutorService.submit(Callable<T> task)
Future<V>	ExecutorCompletionService.submit(Callable<V> task)
Future<V>	CompletionService.submit(Callable<V> task) Submits a value-returning task for execution and returns a Future representing the pending results of the task.
Future<?>	ScheduledThreadPoolExecutor.submit(Runnable task)
Future<?>	ExecutorService.submit(Runnable task) Submits a Runnable task for execution and returns a Future representing that task.
Future<?>	AbstractExecutorService.submit(Runnable task)
<T> Future<T>	ScheduledThreadPoolExecutor.submit(Runnable task, T result)
<T> Future<T>	ExecutorService.submit(Runnable task, T result) Submits a Runnable task for execution and returns a Future representing that task.
<T> Future<T>	AbstractExecutorService.submit(Runnable task, T result)
Future<V>	ExecutorCompletionService.submit(Runnable task, V result)
Future<V>	CompletionService.submit(Runnable task, V result) Submits a Runnable task for execution and returns a Future representing that task.
Future<V>	ExecutorCompletionService.take()
Future<V>	CompletionService.take() Retrieves and removes the Future representing the next completed task, waiting if none are yet present.

Methods in java.util.concurrent that return types with arguments of type Future

Modifier and Type	Method and Description
<T> List<Future<T>>	ForkJoinPool.invokeAll(Collection<? extends Callable<T>> tasks)
<T> List<Future<T>>	ExecutorService.invokeAll(Collection<? extends Callable<T>> tasks) Executes the given tasks, returning a list of Futures holding their status and results when all complete.
<T> List<Future<T>>	AbstractExecutorService.invokeAll(Collection<? extends Callable<T>> tasks)
<T> List<Future<T>>	ExecutorService.invokeAll(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) Executes the given tasks, returning a list of Futures holding their status and results when all complete or the timeout expires, whichever happens first.
<T> List<Future<T>>	AbstractExecutorService.invokeAll(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)

Constructor parameters in java.util.concurrent with type arguments of type Future

Constructor and Description
ExecutorCompletionService(Executor executor, BlockingQueue<Future<V>> completionQueue) Creates an ExecutorCompletionService using the supplied executor for base task execution and the supplied queue as its completion queue.