001/*
002 * Copyright (C) 2014 Jörg Prante
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.xbib.elasticsearch.plugin.jdbc.cron;
017
018import java.util.concurrent.ExecutorService;
019import java.util.concurrent.Future;
020
021/**
022 * Executor service that schedules a task for execution via a cron expression.
023 */
024public interface CronExecutorService extends ExecutorService {
025    /**
026     * Schedules the specified task to execute according to the specified cron expression.
027     *
028     * @param task       the Runnable task to schedule
029     * @param expression a cron expression
030     */
031    Future<?> schedule(Runnable task, CronExpression expression);
032}