hey, i'm pretty new to the app engine, and basically i'm in the middle
of creating something whereby i need multiple pages with seperate
comment systems using PMF. if i try to use my PMF on more than 1 page,
though, i get an error saying
Caused by: javax.jdo.JDOFatalUserException: Application code attempted
to create a PersistenceManagerFactory named transactions-optional, but
one with this name already exists! Instances of
PersistenceManagerFactory are extremely slow to create and it is
usually not necessary to create one with a given name more than once.
Instead, create a singleton and share it throughout your code. If you
really do need to create a duplicate PersistenceManagerFactory (such
as for a unittest suite), set the
appengine.orm.disable.duplicate.pmf.exception system property to avoid
this error.
at
org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManagerFactory.getPersistenceManagerFactory(DatastoreJDOPersistenceManagerFactory.java:
135)
now i can create a PMF named something seperate and it all works fine
except it uses the exact same comments that have been posted - not
exactly what i'm after! so i was wondering if anyone knows how to get
around this e.g. how to set the
appengine.orm.disable.duplicate.pmf.exception or something else?
thanks,
david
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