hibernate-dev August 2007

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hibernate-oracle10-testsuite build.105 Build Fixed

by jboss-qa-internal＠redhat.com

16 years, 8 months

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Hibernate as JPA persistence-provider in SAP Netweaver

by De Silva Jayasinghe, Robin

Hi! I am member of the team that develops JPA in SAP's Netweaver Server. Recently we had an issue with Hibernate as a persistence provider for JPA. During injection of EM/EMF into stateless session bean, our ORPersistenceObjectFactory creates a new instance of Hibernate EntityManagerFactory. During initialization HibernateEMF tries to get a DB connection but at this point of time this is forbidden and an exception is thrown. This exception is ignored from Hibernate : try { Connection conn = connections.getConnection(); try { ....................... } finally { connections.closeConnection(conn); } } catch (SQLException sqle) { log.warn("Could not obtain connection metadata", sqle); } catch (UnsupportedOperationException uoe) { // user supplied JDBC connections } After that EMF is normally created and returned to session EJB. After that when EM is used it check's if connection was already created and if not creates a new one " public Connection getConnection() throws HibernateException { if ( isClosed ) { throw new HibernateException( "connection manager has been closed" ); } if ( connection == null ) { openConnection(); } return connection; } Hibernate and the our JPA container implementation is also correct. The only one problem is that this exception is logged during the first request to the related application. My question to you as the development team of Hibernate is whether you are aware of this situation. It would be nice to have Hibernate running on our engine more smoothly. Best Regards, Robin

16 years, 8 months