It works great! It was identical to hibernate JPA implementation.
rtselvan wrote:
>
> Thanks Guys!
>
> Let me try that, it looks pretty simple
>
>
>
> Michael Dick wrote:
>>
>> Adding to Milosz response.
>>
>> The property keys that you want are javax.persistence.jtaDataSource and
>> javax.persistence.nonJtaDataSource (for jta-data-source and
>> non-jta-data-source respectively)
>>
>> For example :
>> Map<String, Object> props = new HashMap<String, Object>();
>> props.put("javax.persistence.jtaDataSource", "jdbc/override");
>> props.put("javax.persistence.nonJtaDataSource",
>> "jdbc/overrideNonJTA");
>> EntityManagerFactory emf =
>> Persistence.createEntityManagerFactory(getPersistenceUnitName(), props);
>>
>> In earlier versions of OpenJPA you can use openjpa.ConnectionFactoryName
>> for
>> jta-data-source and openjpa.ConnectionFactory2Name for
>> non-jta-data-source.
>>
>> Hope this helps,
>> -mike
>>
>> On Sat, Nov 7, 2009 at 2:41 PM, Miłosz Tylenda <[email protected]> wrote:
>>
>>> Hello!
>>>
>>> > >
>>> > > My application is a multi-tenant app, I would need to override the
>>> > > datasource
>>> > > at runtime when creating the entitymanager factory based on the
>>> client
>>> > > code/name.
>>> > >
>>> > > Does OpenJPA support that?
>>> >
>>> >
>>> > In a month or two I will be modifying my application to do just this
>>> sort
>>> of
>>> > thing. I assume by "multi-tenant" you mean someone will login as a
>>> user
>>> > under one of many organizations and the user will then have access to
>>> one
>>> of
>>> > many persistence units that correspond to the organizations? I have
>>> much
>>> > more to do than selecting the right persistence unit / em factory, but
>>> I'm
>>> > interested in whatever you come up with. I hadn't considered that
>>> OpenJPA
>>> > might support it, I figured I'd have to instantiate all the factories
>>> when
>>> > the app starts up, then use the URL the user accesses the app with to
>>> map
>>> to
>>> > the right factory. It actually seems fairly easy, but if OpenJPA
>>> supports
>>> > some mechanism already, all the better.
>>>
>>> Have you tried calling Persistence.createEntityManagerFactory(String,
>>> Map)?
>>> The second parameter should allow you to override any value you have set
>>> in
>>> persistence.xml, so in particular, the data source name.
>>>
>>> Regards,
>>> Milosz
>>>
>>>
>>
>>
>
>
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