EJB and autostart a class

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Sin - 30 Dec 2004 16:19 GMT

I'm new in EJB programming. I'm trying to write an applicaiton running
on SUN Application Server. Is it possible to inform the server to
start one instance of the specified class automatically when
application starts? And when clients request and create EJB instances,
these instances will use that prestarted instance of specified class.

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dc - 05 Jan 2005 16:03 GMT

I think all the servers do this differently.
WebLogic calls em startup Beans if I am not mistaken?

> I'm new in EJB programming. I'm trying to write an applicaiton running
> on SUN Application Server. Is it possible to inform the server to
> start one instance of the specified class automatically when
> application starts? And when clients request and create EJB instances,
> these instances will use that prestarted instance of specified class.

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Christian Kalkhoff - 05 Jan 2005 17:02 GMT

Depending the version of j2ee you use u have two options known to me.
Use an servlet (not http servlet), define in web.xml as
<load-on-startup>1</load-on-startup> and write your code to the init
method.

The other way, i´ve not yet tested is to write an implementation of
javax.servlet.ServletContextListener.

Hope that helps.

christian

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EJB and autostart a class

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