/*  * 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 Trigger}</code> fires. In general, applications that use a * <code>Scheduler</code> will not have use for this mechanism. * </p> *  * @see Scheduler * @see Trigger * @see JobListener * @see JobExecutionContext *  * @author James House */public interface TriggerListener {    /*     * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     *      * Interface.     *      * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     */    /**     * <p>     * Get the name of the <code>TriggerListener</code>.     * </p>     */    public String getName();    /**     * <p>     * Called by the <code>{@link Scheduler}</code> when a <code>{@link Trigger}</code>     * has fired, and it's associated <code>{@link org.quartz.JobDetail}</code>     * is about to be executed.     * </p>     *      * <p>     * It is called before the <code>vetoJobExecution(..)</code> method of this     * interface.     * </p>     *      * @param trigger     *          The <code>Trigger</code> that has fired.     * @param context     *          The <code>JobExecutionContext</code> that will be passed to     *          the <code>Job</code>'s<code>execute(xx)</code> method.     */    public void triggerFired(Trigger trigger, JobExecutionContext context);    /**     * <p>     * Called by the <code>{@link Scheduler}</code> when a <code>{@link Trigger}</code>     * has fired, and it's associated <code>{@link org.quartz.JobDetail}</code>     * is about to be executed.     * </p>     *      * <p>     * It is called after the <code>triggerFired(..)</code> method of this     * interface.     * </p>     *      * @param trigger     *          The <code>Trigger</code> that has fired.     * @param context     *          The <code>JobExecutionContext</code> that will be passed to     *          the <code>Job</code>'s<code>execute(xx)</code> method.     */    public boolean vetoJobExecution(Trigger trigger, JobExecutionContext context);        /**     * <p>     * Called by the <code>{@link Scheduler}</code> when a <code>{@link Trigger}</code>     * has misfired.     * </p>     *      * <p>     * Consideration should be given to how much time is spent in this method,     * as it will affect all triggers that are misfiring.  If you have lots     * of triggers misfiring at once, it could be an issue it this method     * does a lot.     * </p>     *      * @param trigger     *          The <code>Trigger</code> that has misfired.     */    public void triggerMisfired(Trigger trigger);    /**     * <p>     * Called by the <code>{@link Scheduler}</code> when a <code>{@link Trigger}</code>     * has fired, it's associated <code>{@link org.quartz.JobDetail}</code>     * has been executed, and it's <code>triggered(xx)</code> method has been     * called.     * </p>     *      * @param trigger     *          The <code>Trigger</code> that was fired.     * @param context     *          The <code>JobExecutionContext</code> that was passed to the     *          <code>Job</code>'s<code>execute(xx)</code> method.     * @param triggerIntructionCode     *          the result of the call on the <code>Trigger</code>'s<code>triggered(xx)</code>     *          method.     */    public void triggerComplete(Trigger trigger, JobExecutionContext context,            int triggerInstructionCode);}