io.logspace.agent.shaded.quartz.spi.SchedulerPlugin Maven / Gradle / Ivy
/*
* Copyright 2001-2009 Terracotta, Inc.
*
* 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 io.logspace.agent.shaded.quartz.spi;
import io.logspace.agent.shaded.quartz.Scheduler;
import io.logspace.agent.shaded.quartz.SchedulerException;
/**
*
* Provides an interface for a class to become a "plugin" to Quartz.
*
*
*
* Plugins can do virtually anything you wish, though the most interesting ones
* will obviously interact with the scheduler in some way - either actively: by
* invoking actions on the scheduler, or passively: by being a JobListener,
* TriggerListener, and/or SchedulerListener.
*
*
*
* If you use {@link io.logspace.agent.shaded.quartz.impl.StdSchedulerFactory} to
* initialize your Scheduler, it can also create and initialize your plugins -
* look at the configuration docs for details.
*
*
*
* If you need direct access your plugin, you can have it explicitly put a
* reference to itself in the Scheduler's
* SchedulerContext as part of its
* {@link #initialize(String, Scheduler)} method.
*
*
* @author James House
*/
public interface SchedulerPlugin {
/*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* Interface.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
/**
*
* Called during creation of the Scheduler in order to give
* the SchedulerPlugin a chance to initialize.
*
*
*
* At this point, the Scheduler's JobStore is not yet
* initialized.
*
*
*
* If you need direct access your plugin, for example during Job
* execution, you can have this method explicitly put a
* reference to this plugin in the Scheduler's
* SchedulerContext.
*
*
* @param name
* The name by which the plugin is identified.
* @param scheduler
* The scheduler to which the plugin is registered.
* @param loadHelper
* The classLoadHelper the SchedulerFactory is
* actually using
*
* @throws io.logspace.agent.shaded.quartz.SchedulerConfigException
* if there is an error initializing.
*/
void initialize(String name, Scheduler scheduler, ClassLoadHelper loadHelper)
throws SchedulerException;
/**
*
* Called when the associated Scheduler is started, in order
* to let the plug-in know it can now make calls into the scheduler if it
* needs to.
*
*/
void start();
/**
*
* Called in order to inform the SchedulerPlugin that it
* should free up all of it's resources because the scheduler is shutting
* down.
*
*/
void shutdown();
}