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Posted to users@openjpa.apache.org by Jason Reilly <jd...@renci.org> on 2010/05/05 22:31:17 UTC

openjpa/karaf

Hi all,

I am trying to get a project that uses OpenJPA deployed as a Service in 
the Apache Karaf OSGi container.  I am getting an exception when I do an 
osgi:install of my project.  The exception message is:

javax.persistence.PersistenceException: No persistence providers for "rsp" after trying the following discovered implementations: NONE


This is what my META-INF/persistence.xml looks like:

<?xml version="1.0"?>

<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0">

  <persistence-unit name="rsp">

    <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>

....snip classes....

    <properties>

      <property name="openjpa.ConnectionURL" value="jdbc:postgresql://localhost:5432/rsp"/>

      <property name="openjpa.ConnectionDriverName" value="org.postgresql.Driver"/>

      <property name="openjpa.ConnectionUserName" value=""/>

      <property name="openjpa.ConnectionPassword" value=""/>

      <property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO"/>

    </properties>

  </persistence-unit>

</persistence>


Here is a list of relevant installed bundles:

[  95] [Active     ] [            ] [   60] Commons Lang (2.4)

[ 102] [Active     ] [            ] [   60] Commons Collections (3.2.1)

[ 103] [Active     ] [            ] [   60] Commons Pool (1.5.3)

[ 122] [Active     ] [            ] [   60] postgresql-8.4-701.jdbc4 (0)

[ 145] [Active     ] [            ] [   60] Apache Geronimo JSR-317 JPA 2.0 Spec API (1.1)

[ 146] [Active     ] [            ] [   60] Apache Geronimo JSR-303 Bean Validation Spec API (1.1)

[ 148] [Active     ] [            ] [   60] mvn:org.apache.openjpa/openjpa-all/2.1.0-SNAPSHOT


The Karaf version is 1.5.0-SNAPSHOT. 

Any insight on how to remedy this error would be great &, of course, let 
me know if I need to provide more info.

Thanks,
Jason

Re: openjpa/karaf

Posted by Donald Woods <dw...@apache.org>.
For JPA integration with OSGi, take a look at the Apache Aries project-
  http://incubator.apache.org/aries/

The JPA module provides the OpenJPA+OSGi glue to expose us as a service
and to discover persistence-units within bundles.  There are two samples
(Blog and AriesTrader) provided, which should help you get going, even
though the samples use Eclipse Equinox right now, take a look at the
following for the basic JPA bundling -

https://svn.apache.org/repos/asf/incubator/aries/trunk/samples/blog/blog-persistence-jpa/


-Donald


On 5/5/10 4:31 PM, Jason Reilly wrote:
> Hi all,
> 
> I am trying to get a project that uses OpenJPA deployed as a Service in
> the Apache Karaf OSGi container.  I am getting an exception when I do an
> osgi:install of my project.  The exception message is:
> 
> javax.persistence.PersistenceException: No persistence providers for
> "rsp" after trying the following discovered implementations: NONE
> 
> 
> This is what my META-INF/persistence.xml looks like:
> 
> <?xml version="1.0"?>
> 
> <persistence xmlns="http://java.sun.com/xml/ns/persistence"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0">
> 
>  <persistence-unit name="rsp">
> 
>   
> <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
> 
> ....snip classes....
> 
>    <properties>
> 
>      <property name="openjpa.ConnectionURL"
> value="jdbc:postgresql://localhost:5432/rsp"/>
> 
>      <property name="openjpa.ConnectionDriverName"
> value="org.postgresql.Driver"/>
> 
>      <property name="openjpa.ConnectionUserName" value=""/>
> 
>      <property name="openjpa.ConnectionPassword" value=""/>
> 
>      <property name="openjpa.Log" value="DefaultLevel=WARN, Tool=INFO"/>
> 
>    </properties>
> 
>  </persistence-unit>
> 
> </persistence>
> 
> 
> Here is a list of relevant installed bundles:
> 
> [  95] [Active     ] [            ] [   60] Commons Lang (2.4)
> 
> [ 102] [Active     ] [            ] [   60] Commons Collections (3.2.1)
> 
> [ 103] [Active     ] [            ] [   60] Commons Pool (1.5.3)
> 
> [ 122] [Active     ] [            ] [   60] postgresql-8.4-701.jdbc4 (0)
> 
> [ 145] [Active     ] [            ] [   60] Apache Geronimo JSR-317 JPA
> 2.0 Spec API (1.1)
> 
> [ 146] [Active     ] [            ] [   60] Apache Geronimo JSR-303 Bean
> Validation Spec API (1.1)
> 
> [ 148] [Active     ] [            ] [   60]
> mvn:org.apache.openjpa/openjpa-all/2.1.0-SNAPSHOT
> 
> 
> The Karaf version is 1.5.0-SNAPSHOT.
> Any insight on how to remedy this error would be great &, of course, let
> me know if I need to provide more info.
> 
> Thanks,
> Jason
>