... database, and will be determined by the transaction isolation level on entity bean methods. Database locking is described in " Commit Options B and C' in the EJB specification (§10 .5. 9), andJBoss ... to entity beans and the transaction and security management infrastructure for entity beans is architecturally gratuitous and an unnecessary overhead. These are issues to be handled by session ... of this behavior with all databases, JDBC drivers, and application servers, as the JDBC 2.0 API (the version guaranteed with J2EE 1.3) and J2EE specifications do not require prepared statement...