Interface RunnableFuture<V>

Type Parameters:: V - The result type returned by this Future's get method

All Superinterfaces:: Future<V>, Runnable

All Known Subinterfaces:: RunnableScheduledFuture<V>

All Known Implementing Classes:: FutureTask, SwingWorker

public interface RunnableFuture<V> extends Runnable, Future<V>

A Future that is Runnable. Successful execution of the run method causes completion of the Future and allows access to its results.

Since:

1.6

See Also:

Nested Class Summary

Nested classes/interfaces declared in interface Future

Future.State

Modifier and Type	Interface	Description
`static enum`	`Future.State`	Represents the computation state.

Method Summary

Modifier and Type	Method	Description
`void`	`run()`	Sets this Future to the result of its computation unless it has been cancelled (or has already been invoked, in which case effects are undefined).

Methods declared in interface Future

cancel, exceptionNow, get, get, isCancelled, isDone, resultNow, state

Modifier and Type	Method	Description
`boolean`	`cancel(boolean mayInterruptIfRunning)`	Attempts to cancel execution of this task.
`default Throwable`	`exceptionNow()`	Returns the exception thrown by the task, without waiting.
`V`	`get()`	Waits if necessary for the computation to complete, and then retrieves its result.
`V`	`get(long timeout, TimeUnit unit)`	Waits if necessary for at most the given time for the computation to complete, and then retrieves its result, if available.
`boolean`	`isCancelled()`	Returns `true` if this task was cancelled before it completed normally.
`boolean`	`isDone()`	Returns `true` if this task completed.
`default V`	`resultNow()`	Returns the computed result, without waiting.
`default Future.State`	`state()`	Returns the computation state.

Method Details

run

void run()

Sets this Future to the result of its computation unless it has been cancelled (or has already been invoked, in which case effects are undefined).

Specified by:: run in interface Runnable

© 1993, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.