What's RESOURCE_LOCAL? Non JCA? Quoting Craig L Russell <[EMAIL PROTECTED]>:
> Please review and comment on this proposed change to the > specification, as part of the JDO 2.1 maintenance release. > > <proposal> > (PersistenceManagerFactory interface) > 11.3.1 Access via proxy > PersistenceManager getPersistenceManagerProxy(); > Returns a PersistenceManager instance that is thread-safe, for use in > web and application servers and outside servers. The instance > returned can be used in a servlet init method to initialize a static > variable in a web server application. Similarly, it can be used in a > session bean to initialize a static variable in an application server > application. > > If this method is used with a PersistenceManagerFactory that is > configured with TransactionType JTA, the proxy returned will > dynamically delegate to a PersistenceManager. The close method on the > proxy has no effect. > o If there is a PersistenceManager currently associated with the > threads transaction, the method in the proxy delegates to the > corresponding method in the PersistenceManager currently associated > with the threads transaction. > o If there is no PersistenceManager currently associated with the > threads transaction, a PersistenceManager is created and associated > with the threads transaction. > o If there is no transaction currently associated with the calling > thread, a new PersistenceManager is created with no transaction > association, and no possibility of beginning a transaction (in this > case, the begin method on the Transaction instance throws > JDOUserException). Persistent instances returned as a result of > queries can be used to navigate via nontransactional access, > regardless of whether a transaction is subsequently associated with > the thread. The PersistenceManager returned from methods > Query.getPersistenceManager, JDOHelper.getPersistenceManager, and > PersistenceCapable.getPersistenceManager return the actual > PersistenceManager to which the proxy delegated the original method. > > If this method is used with a PersistenceManagerFactory that is > configured with TransactionType RESOURCE_LOCAL, the proxy returned > will dynamically delegate to the PersistenceManager currently > associated with an implementation-defined thread-local variable. The > thread-local variable is inherited by any threads created by the > thread that currently has a PersistenceManager associated with it. > The close method on the proxy clears the thread local variable to > null, and a subsequent invocation on the proxy will create a new > PersistenceManager. > </proposal> > > 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! > >
