[jboss-as7-dev] Consolidated list of non-Java EE JPA and native Hibernate issues

[Jason T. Greene]

On 6/16/11 9:35 AM, Marius Bogoevici wrote:
>
> Jason T. Greene wrote:
>> On 6/16/11 9:20 AM, Marius Bogoevici wrote:
>>> Jason T. Greene wrote:
>>>> BTW let's look at the actual use cases here, and the solutions:
>>>>
>>>> 1. Native/Direct use of hibernate (no JPA)
>>>> - User either bundles their version or imports one on the server
>>>> (perhaps creating a module if they like)
>>>>
>>>> 2. Using a JPA provider other than our Hib 4 one
>>>> - 7.1 = javax.persistence.spi.PersistenceProvider
>>>>
>>>> 3. Using JPA annotations in non JPA/EE applications (Spring)
>>>> - Stuart's patch (skip EE annotations on things we don't identify as
>>>> an EE component)
>>>>
>>>> Feel free to add one.'"
>>>
>>> 4. I have a META-INF/persistence.xml and I want to hide that from the
>>> server (I'll bootstrap the PU through
>>> LocalContainerEntityManagerFactoryBean).
>>
>> This isn't a use case, this is an implementation approach. It sounds
>> like the use case is "Non server integrated local JPA"
>>
>> Do you know of any existing cases where we would want this over (2.)?
> I disagree on this being an implementation approach, IMO it is a
> separate use case.

I think you misunderstood. I was saying the use case is actually" non 
server integrated JPA", not "hide persistence.xml". There are other ways 
JPA can be brought in without persistence.xml.

> I don't really want to use a different
> PersistenceProvider or provide my own (I am perfectly happy with what
> JBoss AS7 provides), I just want the application server not to act upon
> my PU definition.

The JPA plugin mechanism is per deployment.

> Existing case: Spring applications migrated straight from Tomcat, using
> RESOURCE_LOCAL transaction management (or even JTA would be possible in
> the case of JBOSS). They bootstrap the PU on their own through the
> LocalContainerEntityManagerFactoryBean.

Ok so the use case sounds valid, we need some way to completely disable 
any usage of JPA.

4. Application managed JPA, no server involvement


-- 
Jason T. Greene
JBoss, a division of Red Hat