|
A ServletContextListner that can be used to initialize Quartz.
You'll want to add something like this to your WEB-INF/web.xml file:
<context-param>
<param-name>config-file</param-name>
<param-value>/some/path/my_quartz.properties</param-value>
</context-param>
<context-param>
<param-name>shutdown-on-unload</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>start-scheduler-on-load</param-name>
<param-value>true</param-value>
</context-param>
<listener>
<listener-class>
org.quartz.ee.servlet.QuartzInitializerServletListener
</listener-class>
</listener>
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
the 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(QuartzInitializerListener.QUARTZ_FACTORY_KEY);
The init parameter 'servlet-context-factory-key' can be used to override the
name under which the StdSchedulerFactory is stored into the ServletContext, in
which case you will want to use this name rather than
QuartzInitializerListener.QUARTZ_FACTORY_KEY in the above example.
Once you have the factory instance, you can retrieve the Scheduler instance by calling
getScheduler() on the factory.
author:
James House
author:
Chuck Cavaness
author:
John Petrocik | 