ScheduledFuture

AI-generated Key Takeaways

• ScheduledFuture represents a delayed result-bearing action that can be cancelled, typically used for scheduling tasks.

• It extends the Delayed and Future interfaces, providing methods to manage delays, cancellation, and retrieval of results.

• ScheduledExecutorService is commonly used to create and manage instances of ScheduledFuture.

• The interface includes methods inherited from Delayed, Future, and Comparable for comprehensive task management.

public interface ScheduledFuture implements Delayed Future<V>

Known Indirect Subclasses RunnableScheduledFuture<V> RunnableScheduledFuture<V> A ScheduledFuture that is Runnable.

A delayed result-bearing action that can be cancelled. Usually a scheduled future is the result of scheduling a task with a ScheduledExecutorService.

Inherited Method Summary

From interface java.util.concurrent.Delayed

abstract long

getDelay(TimeUnit unit) Returns the remaining delay associated with this object, in the given time unit.

From interface java.util.concurrent.Future

abstract boolean	cancel(boolean mayInterruptIfRunning) Attempts to cancel execution of this task.
abstract 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.
abstract V	get() Waits if necessary for the computation to complete, and then retrieves its result.
abstract boolean	isCancelled() Returns true if this task was cancelled before it completed normally.
abstract boolean	isDone() Returns true if this task completed.

From interface java.lang.Comparable

abstract int

compareTo(Delayed o) Compares this object with the specified object for order.