001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (c) 2004-2007 Paul Ferraro
004 * 
005 * This library is free software; you can redistribute it and/or modify it 
006 * under the terms of the GNU Lesser General Public License as published by the 
007 * Free Software Foundation; either version 2.1 of the License, or (at your 
008 * option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful, but WITHOUT
011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
013 * for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this library; if not, write to the Free Software Foundation, 
017 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018 * 
019 * Contact: ferraro@users.sourceforge.net
020 */
021package net.sf.hajdbc.util.concurrent;
022
023import java.util.concurrent.Executor;
024import java.util.concurrent.ExecutorService;
025
026import org.quartz.CronExpression;
027
028/**
029 * Executor service that schedules a runnable task for execution via a cron expression.
030 * 
031 * @author Paul Ferraro
032 */
033public interface CronExecutorService extends Executor, ExecutorService
034{
035        /**
036         * Schedules the specified task to execute according to the specified cron expression.
037         * @see org.quartz.CronExpression
038         * @param task the Runnable task to schedule
039         * @param expression a cron expression
040         */
041        public void schedule(Runnable task, CronExpression expression);
042}