CronExecutorService.java

/*
 * Copyright (C) 2014 Jörg Prante
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.xbib.elasticsearch.common.cron;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;

/**
 * Executor service that schedules a task for execution via a cron expression.
 */
public interface CronExecutorService extends ExecutorService {
    /**
     * Schedules the specified task to execute according to the specified cron expression.
     *
     * @param task       the Runnable task to schedule
     * @param expression a cron expression
     * @return a future
     */
    Future<?> schedule(Runnable task, CronExpression expression);
}