I have some problem to using toplink , if posible please advise me on them .
some of my problems are :
1- How to configure and use "connection pooling" in toplink technology .
(I create sessions.xml and set it's parameters but it doesn't work correctly)
2- How to build parametric query and use that ?
(I create query in one of my data controls and mapping it to a data action
but it doesn't work correctly )

If you want , I can send you my test project that you can see my tries.
So , If possible , please help to use this technology correctly .