| Jörg von Frantzius (JIRA) 2006-12-20, 7:11 am |
| [ http://issues.apache.org/jira/brows...ments#action_1=
2459912 ]=20
=20
J=C3=B6rg von Frantzius commented on JDO-445:
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And what about non-transactional reads? What we do in our systems is to kee=
p track of one PM per thread in a Map, and upon returning a PM, we iterate =
the keyset() of threads in this map, "reaping" dead threads by closing thei=
r PMs if they weren't closed already, and removing found dead threads from =
the Map afterwards.
As far as I can see, this could provide an implementation of the proposed m=
ethods, as with an ongoing transaction the current thread is equivalent to =
the ongoing transaction. The only problem could be transactions that (seque=
ntially) span multiple threads, but I don't believe that any XA implementat=
ion supports that scenario anyway.
> Add convenience method that returns a PersistenceManager proxy
> --------------------------------------------------------------
>
> Key: JDO-445
> URL: http://issues.apache.org/jira/browse/JDO-445
> Project: JDO
> Issue Type: New Feature
> Components: api2, api2-legacy
> Reporter: Michelle Caisse
> Assigned To: Craig Russell
> Fix For: JDO 2 maintenance release 1
>
> Attachments: PMProxy-patch.txt
>
>
> In Chapter 8, add a convenience method that returns a PersistenceManager =
proxy that can be used in web and ejb containers to dynamically bind to the=
transaction-associated PersistenceManager.
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