Hi Rainer, all,
On 11/21/2011 7:33 AM, Rainer Kwesi Schweigkoffer wrote:
> Hi Linda, all,
>
> please see below...
>
> Am 14 Nov 2011 um 15:22 hat Linda DeMichiel geschrieben:
>
>> This is covered pretty explicitly in section 3.2.4:
>>
>> "... a persistence context of type SynchronizationType.UNSYNCHRONIZED
>> or an application-managed persistence context that has been created
>> outside the scope of the current transaction will only be synchronized
>> to the database if it has been joined to the current transaction by
>> the application´s use of the EntityManager joinTransaction method."
>
> Maybe I am the only one who finds it confusing that the spec
> sometimes speaks of a "container-managed persistence context of type
> SynchronizationType.(UN)SYNCHRONIZED" and sometimes just of a
> "persistence context of type SynchronizationType.(UN)SYNCHRONIZED".
>
Hmmmm... Only container-managed persistence contexts can be designated
as SynchronizationType.(UN)SYNCHRONIZED and referred to as such, so I thought
this point was pretty clear. I'll make a sweep through the spec to verify
though.
>>> With respect to 7.4., p. 323, addNamedQuery, I would like to remind
>>> of the thread synchronisation issues brought up by Evan and would
>>> prefer to at least see them mentioned as open issue before going EDR.
>>>
>>
>> Could you be more specific as to what you would like to see stated
>> in such a note? That the provider must ensure that the addNamedQuery
>> method is atomic? That we should contemplate adding a hasNamedQuery
>> method? Other?
>
> Actually, I am still not convinced that this addNamedQuery method on
> the EMF is the way to go rather than an EMF creation callback that
> allows adding of named (criteria) queries before the EMF becomes
> available. In April/May the discussion seemed to me to take that
> direction.
>
I believe the issue here was that EMF creation time is not specified and may
occur before any components which would receive these callbacks.
regards,
-Linda
> Best regards
> Rainer
> ---
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