I have the standard stateless session bean patterns which calls multiple DAO to get the work done all within the same transaction managed at the EJB container . If any db operations fail then exception is thrown and entire transaction is rolled back. I have a datasource defined and a connection pool . The application should work with all the standard appservers like Weblogic/JBoss/WebSphere/Orion ....


Now I want to introduce Hibernate.
Is there any transaction issue using Hibernate to make some of the above database calls? In short I am mixing JDBC and Hibernate calls and multiple DAO could be used to complete one Business operation initiated by calling the EJB.


I do not want to introduce any other framework like Spring. All I am trying to do is partially port some of the existing calls to Hibernate

Thanks very much.

If you have container managed transactions, mixing JDBC and Hibernate should not be a problem, as long as you have both connections managed by the container.