Does the isolation level specified for OC4J transactions automatically propagate to the underlying database transactions for CMP Entity Beans? Do you have to manage this yourself for BMP Entity beans?
The isolation level needs to be propagated to the database by the container and managed at the transaction level. In the OC4J Release 1.0.2.2, the setting applies to the underlying JDBC connection and it is not reset at the transaction boundary. With OC4J Release 1.0.2.2, using BMP and Select for Update, customers can have better isolation control. This has been improved in OC4J release 9.0.2.0 and above.
