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/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/licenses/publicdomain
 */
 
package java.util.concurrent;
 
/**
 * A {@link ScheduledFuture} that is {@link Runnable}. Successful
 * execution of the <tt>run</tt> method causes completion of the
 * <tt>Future</tt> and allows access to its results.
 * @see FutureTask
 * @see Executor
 * @since 1.6
 * @author Doug Lea
 * @param <V> The result type returned by this Future's <tt>get</tt> method
 */
public interface RunnableScheduledFuture<V> extends RunnableFuture<V>, ScheduledFuture<V> {
 
    /**
     * Returns true if this is a periodic task. A periodic task may
     * re-run according to some schedule. A non-periodic task can be
     * run only once.
     *
     * @return true if this task is periodic
     */
    boolean isPeriodic();
}