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From: David Jencks <david_jencks@yahoo.com>
To: user@geronimo.apache.org
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Subject: Re: JPA, entities and EJB3
Date: Tue, 27 May 2008 16:25:54 -0700
References: <17502079.post@talk.nabble.com>
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1. I hope you named the file openejb-jar.xml
2. jta-datasource and non-jta-datasource have to contain the names of  
the datasources in the geronimo plan used for the pool, NOT some jndi  
name you might also map them to.  The datasources don't need to be  
bound in jndi in order to be used for jpa
3. The non-jta-datasource must be a datasource that really has no  
transaction support, using the <no-transaction/> element instead of  
<local-transaction/> or <xa-transaction>... in the connector plan.   
With derby I find it necessary to have a non-jta-datasource if any ddl  
is needed or if openjpa is generating the primary keys.  I don't know  
if you can get away without one for other databases.  If you want to  
experiment, leave out the non-jta-datasource rather than duplicating  
the jta-datasource contents.

hope this helps
david jencks

On May 27, 2008, at 4:09 PM, zeros wrote:

>
> Good evening:
>
>    I'm newbie with EJB3.0. I want to configure the persistence.xml  
> to have
> entities managed with JPA. I have the next configuration files:
> OPENJPA-JAR.XML
>
> <openejb-jar xmlns="http://www.openejb.org/xml/ns/openejb-jar-2.1"
> xmlns:nam="http://geronimo.apache.org/xml/ns/naming-1.1"
> xmlns:pkgen="http://www.openejb.org/xml/ns/pkgen-2.0"
> xmlns:sec="http://geronimo.apache.org/xml/ns/security-1.1"
> xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
>  <sys:environment>
>    <sys:moduleId>
>      <sys:groupId>o2o.marketing</sys:groupId>
>      <sys:artifactId>EJB</sys:artifactId>
>      <sys:version>1.0.8</sys:version>
>      <sys:type>jar</sys:type>
>    </sys:moduleId>
>    <sys:dependencies>
>        <sys:dependency>
>            <sys:groupId>console.dbpool</sys:groupId>
>        	<sys:artifactId>marketing</sys:artifactId>
>        	<sys:version>1.0</sys:version>
>          	<sys:type>rar</sys:type>
>  		</sys:dependency>
>  </sys:dependencies>
>  </sys:environment>
> </openejb-jar>
>
> And I have also persistence.xml
>
> <?xml version="1.0" encoding="UTF-8"?>
> <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence 
> "
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
> http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
>  <persistence-unit name="marketing">
>    	<description>Entity Beans for User</description>
>
> <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</ 
> provider>
>    	<jta-data-source>java:comp/env/marketing</jta-data-source>
>    	<non-jta-data-source>java:comp/env/marketing</non-jta-data-source>
>        <mapping-file>META-INF/orm.xml</mapping-file>
>        <properties />
>  </persistence-unit>
> </persistence>
>
> The error which I'm having is the next one: Unable to resolve  
> reference
> "JtaDataSourceWrapper" and Unable to resolve reference
> "NonJtaDataSourceWrapper", which are basically the same error.
>
> I think this is produced because I'm not mapping the Datasocurce to  
> the
> DBPool. Geronimo returns to me examples to do it for web, but no  
> example to
> do it for an EJB.
>
> Please could you help me?
>
> WATCH OUT! I'm talking about entities and EJB3.0, not entiti beans and
> EJB2.0
>
> Thanks in advance
>
> SERGIO
> -- 
> View this message in context: http://www.nabble.com/JPA%2C-entities-and-EJB3-tp17502079s134p17502079.html
> Sent from the Apache Geronimo - Users mailing list archive at  
> Nabble.com.
>