Toplink with stored procedures

Question

Hi
I am new to Toplink and would like to get an idea whether Toplink would be suitable for our application. Currently, in our application we always access the database through stored procedures. I realize Toplink supports stored procuedres with StoredProcedureCall class. However; I am just trying to get some feedback as to whether using only this feature(as well as handling database connections etc.) of Toplink is a good idea or not.
Thanks,
Izi

Answer 1

I have my entity manager setup in a singleton.
I'm finding it's costly to generate the emf, but if I don't close the em (enitity manager) and emf (entity manager factory) my open cursor count climbs until I exceed the max number of open cursors on the database (11g RAC)
I'm committing the connection, and uow, and closing the em at the end of each call.
But until I close the emf, the open cursors aren't released.
TransactionhistoryPkg tranPkg = new TransactionhistoryPkg(conn); //Class created over database package via JPublisher
tranPkg.transactionhistoryInsSp(insertTrans.getCardId()); // executes db package
tranPkg.closeConnection();
conn.commit();
uow.commit();
uow.getAccessor().decrementCallCount();
em.close();
Am I missing something really obvious here??
btw - I found this link helpful in troubleshooting the max cursors issue: https://support.bea.com/application_content/product_portlets/support_patterns/wls/InvestigatingORA-1000MaximumOpenCursorsExceededPattern.html