Thank you for the nice issue write-up. Please file it in the App Engine DataNucleus plugin issue tracker:
http://code.google.com/p/datanucleus-appengine/issues/list For now, just close the PersistenceManager before starting a new transaction. - Jason On Mon, Sep 7, 2009 at 1:50 AM, wada3 <[email protected]> wrote: > > Hi, here is introducing my JDO problem. > > Is it issue of datanucleus or me? > Should I separate codes with txn when getting > something from datastore with same PM? > > Thanks. > > --- > ・What steps will reproduce the problem? > > 1.get PersistenceManager as pm. > 2.invoke pm.getObjectById or iterate some query result outside txn. > 3.txn.begin > 4.invoke pm.getObjectById > 5.change entity's properties. > 6.txn.commit > > *Same issue occured if kind of entity is different between 2 and 4 or > not. > > ・What is the expected output? What do you see instead? > > expected: It starts DatastoreService's transaction. > instead: It does not start DatastoreService's transaction. > (DatastoreXAResource#start is not invoked.) > > ・What version of the product are you using? On what operating system? > > SDK 1.2.5 on Windows XP/eclipse 3.4 > > ・Please provide any additional information below. > > If once invoke getObjectById or something outside txn, > ManagedConnection instance is reused from ManagedConnectionPool > at ConnectionManagerImpl by invoking allocateConnection. > If that pooled connection was made at when it is not in txn, > ConnectionManagerImpl#enlistResource is not invoked so it does not > start Datastore's transaction. > Also it does not register transaction listener so there is no way to > remove this connection except Query#execute or closing PM. > --- > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---
