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From Adam Hardy <adam....@cyberspaceroad.org>
Subject Re: multiple persistence-units, each w different provider
Date Sun, 02 Mar 2008 15:03:52 GMT
"should" being the operative word here. Actually I tested out the Geronimo 
package org.apache.geronimo.specs.geronimo-jpa_3.0_spec-1.1.1 and it solved the 
problem for me. Thanks.


Kevin Sutter on 29/02/08 16:43, wrote:
> Right, and there should be no reason to develop your own version of the
> javax.persistence.Persistence.  The one provided by Sun/Glassfish, Geronimo,
> etc should all provide the same level of functionality.  (Albeit, as Pinaki
> has pointed out in a separate thread, not all of the fixes have made it into
> every version.)
> 
> Kevin
> 
> On Thu, Feb 28, 2008 at 6:41 PM, Patrick Linskey <plinskey@gmail.com> wrote:
> 
>> Hi,
>>
>> I think that the official copy is the one at Glassfish.
>>
>> -Patrick
>>
>> On Thu, Feb 28, 2008 at 2:15 AM, Adam Hardy <adam.sql@cyberspaceroad.org>
>> wrote:
>>> I have three persistence-unit nodes in my persistence.xml: one for
>> Toplink with
>>>  the toplink provider specified, one for Hibernate, and one for OpenJPA.
>>>
>>>  It tests various operations in JPA, configured to use whichever JPA
>> supplier I
>>>  specify at the time, i.e. I just change the name of the
>> persistence-unit I pass
>>>  to Persistence.createEntityManagerFactory().
>>>
>>>  So I have, for instance at the moment, not only openjpa.jar on the
>> classpath,
>>>  but also hibernate-entitymanager.jar and toplink-essentials.jar.
>>>
>>>  When running my test, due to the way
>> javax.persistence.Persistence.class is
>>>  programmed, any of those providers may be picked for use, without
>> reference to
>>>  the name of the persistence-unit name that I specified when calling
>>>  createEntityManagerFactory() - somewhat surprisingly!
>>>
>>>  If my memory serves me well, the persistence-api.jar that I am using is
>> just the
>>>  one that maven downloaded automatically from the global jar repo.
>>>
>>>  I'm tempted to create my own javax.persistence.Persistence to do it
>> properly and
>>>  position it ahead of the persistence-api.jar on my classpath.
>>>
>>>  This just doesn't seem right. I guess I should be asking at Sun. Was it
>> Sun who
>>>  wrote javax.persistence.Persistence ? Or are there different versions?
>> Is there
>>>  an 'OpenJPA persistence-api'?
>>>
>>>  Has anyone here written their own and made it publicly available?
>>>
>>>
>>>  Thanks
>>>  Adam
>>>
>>>
>>
>>
>> --
>> Patrick Linskey
>> 202 669 5907
>>
> 


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