+1
Craig L Russell wrote:
Javadogs,
To align JDO better with JPA, I'd like to borrow some JPA concepts and
apply them to JDO, and document in JDO 2.1 (maintenance release).
PersistenceManagerFactory is equivalent to a persistence unit.
PersistenceManagerFactories can be configured to be either
resource-local or jta, based on a PMF property:
javax.jdo.option.TransactionType. It defaults in managed environments
to JTA; and in non-managed environments to ResourceLocal.
PersistenceManager is equivalent to a persistence context. A
PersistenceManager is either resource-local or jta based on the
transaction type of its PersistenceManagerFactory. For jta
PersistenceManagers, the begin, commit, and rollback methods of the
corresponding Transaction throw JDOUserException. The only way to
complete transactions with jta PersistenceManagers is to use
container-managed transactions or UserTransaction.
Craig
Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:[EMAIL PROTECTED]
P.S. A good JDO? O, Gasp!
