1/*
2 * Written by Doug Lea with assistance from members of JCP JSR-166
3 * Expert Group and released to the public domain, as explained at
4 * http://creativecommons.org/publicdomain/zero/1.0/
5 */
6
7package java.util.concurrent;
8
9/**
10 * A {@link ScheduledFuture} that is {@link Runnable}. Successful
11 * execution of the {@code run} method causes completion of the
12 * {@code Future} and allows access to its results.
13 * @see FutureTask
14 * @see Executor
15 * @since 1.6
16 * @author Doug Lea
17 * @param <V> The result type returned by this Future's {@code get} method
18 */
19public interface RunnableScheduledFuture<V> extends RunnableFuture<V>, ScheduledFuture<V> {
20
21    /**
22     * Returns {@code true} if this task is periodic. A periodic task may
23     * re-run according to some schedule. A non-periodic task can be
24     * run only once.
25     *
26     * @return {@code true} if this task is periodic
27     */
28    boolean isPeriodic();
29}
30