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Date: Thu, 2 May 2013 00:39:06 +0530
Message-ID: 
 <CAJsdxu6t289GRJnb4YJjcAdMGPLCn9MhQpstvHLc1xgpVr+r0Q@mail.gmail.com>
Subject: Re: Is it possible to override the default openjpa persistence
 provider
From: Subash Chaturanga <subashsdm@gmail.com>
To: users@openjpa.apache.org
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On Wed, May 1, 2013 at 10:29 PM, Rick Curtis <curtisr7@gmail.com> wrote:

> > The reason is I want to override the EntityManager. In fact the
> EntityManager.persist()
> method (way I could intercept a set of JPA calls without touching any
> others like Entity classes ).
> Have you investigated creating an orm.xml file which denotes a default
> entity listener? From the JPA 2.0 SPEC -- Default entity listeners=97enti=
ty
> listeners that apply to all entities in the persistence unit=97can be
> specified
> by means of the XML descriptor. I'd suggest downloading the JPA-2.0 spec
> and reading through section 3.5.
>
> This is 100% easier / better way to go than trying to override the OpenJP=
A
> implementation.
>
>
I think listener worked for me ;-) . Thanks


>
> On Tue, Apr 30, 2013 at 11:02 PM, Subash Chaturanga <subashsdm@gmail.com
> >wrote:
>
> > On Tue, Apr 30, 2013 at 11:37 PM, Subash Chaturanga <subashsdm@gmail.co=
m
> > >wrote:
> >
> > > Hi
> > >
> > > Forgot to mention that, Yes I am running in an OSGi env.
> >
> >
> > Appreciate any update on this. Is there anyone who has written a custom
> > persistence provider before for JPA ? So that I can compare the
> > persistence.xml file.
> > Currently I just copy pasted the very same
> > org.apache.openjpa.PersistenceProviderImpl  code and only changed the
> class
> > name and checked. Still the same result.  So I believe it is not
> something
> > in the provider class I added. I have the openjpa code with me and
> > appreciate any clue where I should debug ?
> >
> >
> > >
> > > Thanks
> > >
> > >
> > > On Tue, Apr 30, 2013 at 8:09 PM, Subash Chaturanga <
> subashsdm@gmail.com
> > >wrote:
> > >
> > >> Opps I made the error log to view so sloppy. Please see the followin=
g
> > >> error log.
> > >>
> > >>
> > >> org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or
> > >> DataSource class name must be specified in the ConnectionDriverName
> > >> property. Available properties in configuration are
> > >> "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@442ce698".
> > >>  at
> > >>
> >
> org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSource=
Factory.java:72)
> > >> at
> > >>
> >
> org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactor=
y(JDBCConfigurationImpl.java:844)
> > >>  at
> > >>
> >
> org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstanc=
e(JDBCConfigurationImpl.java:602)
> > >> at
> > >>
> >
> org.apache.openjpa.jdbc.meta.MappingRepository.endConfiguration(MappingRe=
pository.java:1510)
> > >>  at
> > >>
> >
> org.apache.openjpa.lib.conf.Configurations.configureInstance(Configuratio=
ns.java:518)
> > >> at
> > >>
> >
> org.apache.openjpa.lib.conf.Configurations.configureInstance(Configuratio=
ns.java:443)
> > >>  at
> > >>
> > org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:10=
4)
> > >> at
> > >>
> >
> org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepos=
itoryValue.java:68)
> > >>  at
> > >>
> org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83)
> > >> at
> > >>
> >
> org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryIns=
tance(OpenJPAConfigurationImpl.java:968)
> > >>  at
> > >>
> >
> org.apache.openjpa.conf.OpenJPAConfigurationImpl.getMetaDataRepositoryIns=
tance(OpenJPAConfigurationImpl.java:959)
> > >> at
> > >>
> >
> org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrok=
erFactory.java:638)
> > >>  at
> > >>
> >
> org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerF=
actory.java:203)
> > >> at
> > >>
> >
> org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBro=
kerFactory.java:156)
> > >>  at
> > >>
> >
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManag=
er(EntityManagerFactoryImpl.java:227)
> > >> at
> > >>
> >
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManag=
er(EntityManagerFactoryImpl.java:154)
> > >>  at
> > >>
> >
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManag=
er(EntityManagerFactoryImpl.java:60)
> > >> at
> > >>
> >
> org.apache.juddi.config.PersistenceManager.getEntityManager(PersistenceMa=
nager.java:45)
> > >>  at
> > >>
> >
> org.apache.juddi.config.AppConfig.getPersistentConfiguration(AppConfig.ja=
va:109)
> > >> at
> > org.apache.juddi.config.AppConfig.loadConfiguration(AppConfig.java:95)
> > >>  at org.apache.juddi.config.AppConfig.<init>(AppConfig.java:62)
> > >> at org.apache.juddi.config.AppConfig.getInstance(AppConfig.java:183)
> > >>  at
> > >> org.apache.juddi.config.AppConfig.getConfiguration(AppConfig.java:20=
5)
> > >> at org.apache.juddi.Registry.start(Registry.java:55)
> > >>
> > >>
> > >>
> > >> On Tue, Apr 30, 2013 at 8:08 PM, Subash Chaturanga <
> subashsdm@gmail.com
> > >wrote:
> > >>
> > >>>
> > >>>
> > >>> On Tue, Apr 30, 2013 at 6:56 PM, Rick Curtis <curtisr7@gmail.com>
> > wrote:
> > >>>
> > >>>> Is there a compelling reason that you're trying to extend OpenJPA?
> > What
> > >>>> container are you running in? The reason I ask is that I see that
> > >>>> org.apache
> > >>>> .openjpa.osgi.OSGiPersistenceProviderImpl is a valid provider. If
> you
> > >>>> are
> > >>>> running in an OSGI environment, that will complicate things.
> > >>>>
> > >>>
> > >>> Hi Rick
> > >>> Thank you very much for the response.
> > >>>
> > >>> The reason is I want to override the EntityManager. In fact the
> > >>> EntityManager.persist() method (way I could intercept a set of JPA
> > calls
> > >>> without touching any others like Entity classes ). Thus I wanted to
> > have my
> > >>> own provider which will be like MyProvider extends
> > >>> org.apache.openjpa.presist.PersistenceProviderImpl and provide my o=
wn
> > >>> entity manager factory and then I can provide my EntityManager whic=
h
> > will
> > >>> again will (hoping) to extend default openjpa EntityManager classes=
.
> > >>>
> > >>> Please find my persistence.xml file [1]
> > >>> So I had come configuration issues and now I am getting this. Can y=
ou
> > >>> please provide any solution for this.
> > >>>
> > >>> org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or
> > >>> DataSource class name must be specified in the ConnectionDriverName
> > >>> property. Available properties in configuration are
> > >>> "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@442ce698". at
> > >>>
> >
> org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSource=
Factory.java:72)
> > >>> at
> > >>>
> >
> org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactor=
y(JDBCConfigurationImpl.java:844)
> > >>> at
> > >>>
> >
> org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstanc=
e(JDBCConfigurationImpl.java:602)
> > >>> at
> > >>>
> >
> org.apache.openjpa.jdbc.meta.MappingRepository.endConfiguration(MappingRe=
pository.java:1510)
> > >>> at
> > >>>
> >
> org.apache.openjpa.lib.conf.Configurations.configureInstance(Configuratio=
ns.java:518)
> > >>> at
> > >>>
> >
> org.apache.openjpa.lib.conf.Configurations.configureInstance(Configuratio=
ns.java:443)
> > >>> at
> > >>>
> > org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:10=
4)
> > >>> at
> > >>>
> >
> org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepos=
itoryValue.java:68)
> > >>> at
> > org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83=
)
> > >>> at
> > >>>
> >
> org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryIns=
tance(OpenJPAConfigurationImpl.java:968)
> > >>> at
> > >>>
> >
> org.apache.openjpa.conf.OpenJPAConfigurationImpl.getMetaDataRepositoryIns=
tance(OpenJPAConfigurationImpl.java:959)
> > >>> at
> > >>>
> >
> org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrok=
erFactory.java:638)
> > >>> at
> > >>>
> >
> org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerF=
actory.java:203)
> > >>> at
> > >>>
> >
> org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBro=
kerFactory.java:156)
> > >>> at
> > >>>
> >
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManag=
er(EntityManagerFactoryImpl.java:227)
> > >>> at
> > >>>
> >
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManag=
er(EntityManagerFactoryImpl.java:154)
> > >>> at
> > >>>
> >
> org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManag=
er(EntityManagerFactoryImpl.java:60)
> > >>> at
> > >>>
> >
> org.apache.juddi.config.PersistenceManager.getEntityManager(PersistenceMa=
nager.java:45)
> > >>> at
> > >>>
> >
> org.apache.juddi.config.AppConfig.getPersistentConfiguration(AppConfig.ja=
va:109)
> > >>> at
> > org.apache.juddi.config.AppConfig.loadConfiguration(AppConfig.java:95)
> > >>> at org.apache.juddi.config.AppConfig.(AppConfig.java:62) at
> > >>> org.apache.juddi.config.AppConfig.getInstance(AppConfig.java:183) a=
t
> > >>>
> org.apache.juddi.config.AppConfig.getConfiguration(AppConfig.java:205)
> > at
> > >>> org.apache.juddi.Registry.start(Registry.java:55)
> > >>>
> > >>>
> > >>> [1] - http://pastebin.com/download.php?i=3D3MJtE1cZ
> > >>>
> > >>>
> > >>>
> > >>>>
> > >>>>
> > >>>> On Tue, Apr 30, 2013 at 1:00 AM, Subash Chaturanga <
> > subashsdm@gmail.com
> > >>>> >wrote:
> > >>>>
> > >>>> > Any idea on this please ? Please find my question posted in SO
> [1] .
> > >>>> This
> > >>>> > is regarding openjpa 2.2.0. And I think a custom provider class
> > >>>> recognizes
> > >>>> > as unknown.
> > >>>> >
> > >>>> > Here is the code I found, this method evaluates to false for a
> > custom
> > >>>> > provider class as for example public class MyProviderImpl
> implements
> > >>>> > PersistenceProvider, ProviderUtil
> > >>>> >
> > >>>> >
> > >>>> >     private static boolean
> > >>>> > *isOpenJPAPersistenceProvider*(PersistenceUnitInfo
> > >>>> > pinfo, ClassLoader loader) {
> > >>>> >         String provider =3D pinfo.getPersistenceProviderClassNam=
e();
> > >>>> >         if (StringUtils.isEmpty(provider) ||
> > >>>> > PersistenceProviderImpl.class.getName().equals(provider))
> > >>>> >             return true;
> > >>>> >
> > >>>> >         if (loader =3D=3D null)
> > >>>> >             loader =3D
> > >>>> >
> > >>>> >
> > >>>>
> >
> AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction(=
));
> > >>>> >         try {
> > >>>> >             if
> > >>>> >
> > >>>>
> > (PersistenceProviderImpl.class.isAssignableFrom(Class.forName(provider,
> > >>>> > false, loader)))
> > >>>> >                 return true;
> > >>>> >         } catch (Throwable t) {
> > >>>> >             log(_loc.get("unloadable-provider", provider,
> > >>>> t).getMessage());
> > >>>> >             return false;
> > >>>> >         }
> > >>>> >         return false;
> > >>>> >     }
> > >>>> >
> > >>>> >
> > >>>> > [1]-
> > >>>> >
> > >>>> >
> > >>>>
> >
> http://stackoverflow.com/questions/16293136/openjpa-2-2-0-cannot-add-a-cu=
stom-persistence-provider-class-openjpa-recogniz
> > >>>> >
> > >>>> > On Mon, Apr 29, 2013 at 11:18 PM, Subash Chaturanga <
> > >>>> subashsdm@gmail.com
> > >>>> > >wrote:
> > >>>> >
> > >>>> > > Hi
> > >>>> > > I wrote a MyProvider
> > >>>> > > extends org.apache.openjpa.persistence.PersistenceProviderImpl=
.
> > And
> > >>>> added
> > >>>> > > MyProvider as the provider in the persistence.xml.
> > >>>> > > Why I did this was to override the EntityManager.persist()
> method.
> > >>>>  But
> > >>>> > > seems still the default provider class get picked up. Am i
> missing
> > >>>> > > something ?
> > >>>> > >
> > >>>> > > --
> > >>>> > > Subash Chaturanga
> > >>>> > > Sri Lanka
> > >>>> > >
> > >>>> > > Blog -  http://subashsdm.blogspot.com/
> > >>>> > > Twitter - http://twitter.com/subash89
> > >>>> > >
> > >>>> > >
> > >>>> >
> > >>>> >
> > >>>> >
> > >>>> > --
> > >>>> > Subash Chaturanga
> > >>>> > Department of Computer Science & Engineering
> > >>>> > University of Moratuwa
> > >>>> > Sri Lanka
> > >>>> >
> > >>>> > Blog -  http://subashsdm.blogspot.com/
> > >>>> > Twitter - http://twitter.com/subash89
> > >>>> >
> > >>>>
> > >>>>
> > >>>>
> > >>>> --
> > >>>> *Rick Curtis*
> > >>>>
> > >>>
> > >>>
> > >>>
> > >>> --
> > >>> Subash Chaturanga
> > >>> Department of Computer Science & Engineering
> > >>> University of Moratuwa
> > >>> Sri Lanka
> > >>>
> > >>> Blog -  http://subashsdm.blogspot.com/
> > >>> Twitter - http://twitter.com/subash89
> > >>>
> > >>>
> > >>
> > >>
> > >>
> > >> --
> > >> Subash Chaturanga
> > >> Department of Computer Science & Engineering
> > >> University of Moratuwa
> > >> Sri Lanka
> > >>
> > >> Blog -  http://subashsdm.blogspot.com/
> > >> Twitter - http://twitter.com/subash89
> > >>
> > >>
> > >
> > >
> > >
> > > --
> > > Subash Chaturanga
> > > Department of Computer Science & Engineering
> > > University of Moratuwa
> > > Sri Lanka
> > >
> > > Blog -  http://subashsdm.blogspot.com/
> > > Twitter - http://twitter.com/subash89
> > >
> > >
> >
> >
> >
> > --
> > Subash Chaturanga
> > Department of Computer Science & Engineering
> > University of Moratuwa
> > Sri Lanka
> >
> > Blog -  http://subashsdm.blogspot.com/
> > Twitter - http://twitter.com/subash89
> >
>
>
>
> --
> *Rick Curtis*
>


--=20
Subash Chaturanga
Department of Computer Science & Engineering
University of Moratuwa
Sri Lanka

Blog -  http://subashsdm.blogspot.com/
Twitter - http://twitter.com/subash89

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