/*  * Copyright 2004-2005 OpenSymphony  *  * 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. *  *//* * Previously Copyright (c) 2001-2004 James House */package org.quartz;/** * <p> * The interface to be implemented by classes that want to be informed when a * <code>{@link org.quartz.JobDetail}</code> executes. In general, * applications that use a <code>Scheduler</code> will not have use for this * mechanism. * </p> *  * @see Scheduler * @see Job * @see JobExecutionContext * @see JobExecutionException * @see TriggerListener *  * @author James House */public interface JobListener {    /*     * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     *      * Interface.     *      * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     */    /**     * <p>     * Get the name of the <code>JobListener</code>.     * </p>     */    public String getName();    /**     * <p>     * Called by the <code>{@link Scheduler}</code> when a <code>{@link org.quartz.JobDetail}</code>     * is about to be executed (an associated <code>{@link Trigger}</code>     * has occured).     * </p>     *      * <p>     * This method will not be invoked if the execution of the Job was vetoed     * by a <code>{@link TriggerListener}</code>.     * </p>     *      * @see #jobExecutionVetoed(JobExecutionContext)     */    public void jobToBeExecuted(JobExecutionContext context);    /**     * <p>     * Called by the <code>{@link Scheduler}</code> when a <code>{@link org.quartz.JobDetail}</code>     * was about to be executed (an associated <code>{@link Trigger}</code>     * has occured), but a <code>{@link TriggerListener}</code> vetoed it's      * execution.     * </p>     *      * @see #jobToBeExecuted(JobExecutionContext)     */    public void jobExecutionVetoed(JobExecutionContext context);        /**     * <p>     * Called by the <code>{@link Scheduler}</code> after a <code>{@link org.quartz.JobDetail}</code>     * has been executed, and be for the associated <code>Trigger</code>'s     * <code>triggered(xx)</code> method has been called.     * </p>     */    public void jobWasExecuted(JobExecutionContext context,            JobExecutionException jobException);}