Hi David,

thank you very much for your input! I will search some information
about OpenJPA.

Do you work with Netbeans? I still didn't figure out how to switch
correctly from Toplink to an alternative persistence project when I
use the wizard of Netbeans 6.0. Yesterday I didn't find the time to go
on working on that issue...

Anyone has experiences on that?

Best regards,

Tilo