What are some tips for using bean-managed transaction demarcation?
Session beans should use bean-managed transaction demarcation, although can use container-managed demarcation. Entity beans must use container-managed demarcation. An enterprise bean should not invoke resource manager-specific transition demarcation API methods (like java.sql.Connection.commit(), java.sql.Connection.rollback(), etc.) while within a transaction. Stateless session beans should always either commit or rollback a transaction before the business method returns. Stateful session beans do not have this requirement. Instead of calling EJBContext.getRollBackOnly(), and javax.ejb.EJBContext.setRollbackOnly(), use the corresponding JTA API calls.
