A Servlet that can be used to initialize Quartz, if configured as a load-on-startup servlet in a web application.

You'll want to add something like this to your WEB-INF/web.xml file:

     <servlet>
         <servlet-name>
             QuartzInitializer
         </servlet-name>
         <display-name>
             Quartz Initializer Servlet
         </display-name>
         <servlet-class>
             org.quartz.ee.servlet.QuartzInitializerServlet
         </servlet-class>
         <load-on-startup>
             1
         </load-on-startup>
         <init-param>
             <param-name>config-file</param-name>
             <param-value>/some/path/my_quartz.properties</param-value>
         </init-param>
         <init-param>
             <param-name>shutdown-on-unload</param-name>
             <param-value>true</param-value>
         </init-param>

         <init-param>
             <param-name>start-scheduler-on-load</param-name>
             <param-value>true</param-value>
         </init-param>

     </servlet>
 

The init parameter 'config-file' can be used to specify the path (and filename) of your Quartz properties file. If you leave out this parameter, the default ("quartz.properties") will be used.

The init parameter 'shutdown-on-unload' can be used to specify whether you want scheduler.shutdown() called when the servlet is unloaded (usually when the application server is being shutdown). Possible values are "true" or "false". The default is "true".

The init parameter 'start-scheduler-on-load' can be used to specify whether you want the scheduler.start() method called when the servlet is first loaded. If set to false, your application will need to call the start() method before teh scheduler begins to run and process jobs. Possible values are "true" or "false". The default is "true", which means the scheduler is started.

A StdSchedulerFactory instance is stored into the ServletContext. You can gain access to the factory from a ServletContext instance like this:
StdSchedulerFactory factory = (StdSchedulerFactory) ctx .getAttribute(QuartzFactoryServlet.QUARTZ_FACTORY_KEY);
Once you have the factory instance, you can retrieve the Scheduler instance by calling getScheduler() on the factory.