1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     3  *

     4  * This code is free software; you can redistribute it and/or modify it

     5  * under the terms of the GNU General Public License version 2 only, as

     6  * published by the Free Software Foundation.  Oracle designates this

     7  * particular file as subject to the "Classpath" exception as provided

     8  * by Oracle in the LICENSE file that accompanied this code.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  */

    24 

    25 /*

    26  * This file is available under and governed by the GNU General Public

    27  * License version 2 only, as published by the Free Software Foundation.

    28  * However, the following notice accompanied the original version of this

    29  * file:

    30  *

    31  * Written by Doug Lea with assistance from members of JCP JSR-166

    32  * Expert Group and released to the public domain, as explained at

    33  * http://creativecommons.org/publicdomain/zero/1.0/

    34  */

    35 

    36 package java.util.concurrent;

    37 

    38 /**

    39  * A {@link ScheduledFuture} that is {@link Runnable}. Successful

    40  * execution of the {@code run} method causes completion of the

    41  * {@code Future} and allows access to its results.

    42  * @see FutureTask

    43  * @see Executor

    44  * @since 1.6

    45  * @author Doug Lea

    46  * @param <V> The result type returned by this Future's {@code get} method

    47  */

    48 public interface RunnableScheduledFuture<V> extends RunnableFuture<V>, ScheduledFuture<V> {

    49 

    50     /**

    51      * Returns {@code true} if this task is periodic. A periodic task may

    52      * re-run according to some schedule. A non-periodic task can be

    53      * run only once.

    54      *

    55      * @return {@code true} if this task is periodic

    56      */

    57     boolean isPeriodic();

    58 }