How to set orion to perform a timely task..

[orion]

Hello,
I need to have my EJB perform some DB operation at midnight everyday.
How do I do that?
In PC, I could create a timer object to do that with VC++, but in Java
it does not seem to have such a functionality. And I think it's ideal
to handle it in the server side rather than play with Java.
In other words, orion may have such a cron function built in to do
something in a timely manner.
If anyone has any experience with this, please tell me how.
Thank you very much in advance.


Simon