PersitenceContext injection in EJB module in Geronimo 3.0 - dependency-injection

Question

I'm trying to inject a PersistenceContext using EJB3 annotations but geronimo doesn't inject dependency. It's an EAR project composed by an EJB and a WEB module.
EJB-module configuration
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<ejb:openejb-jar
xmlns:app="http://geronimo.apache.org/xml/ns/j2ee/application-2.0"
xmlns:bp="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:client="http://geronimo.apache.org/xml/ns/j2ee/application-client-2.0"
xmlns:conn="http://geronimo.apache.org/xml/ns/j2ee/connector-1.2"
xmlns:dep="http://geronimo.apache.org/xml/ns/deployment-1.2" xmlns:ejb="http://openejb.apache.org/xml/ns/openejb-jar-2.2"
xmlns:jaspi="http://geronimo.apache.org/xml/ns/geronimo-jaspi"
xmlns:log="http://geronimo.apache.org/xml/ns/loginconfig-2.0"
xmlns:name="http://geronimo.apache.org/xml/ns/naming-1.2" xmlns:pers="http://java.sun.com/xml/ns/persistence"
xmlns:pkgen="http://openejb.apache.org/xml/ns/pkgen-2.1" xmlns:sec="http://geronimo.apache.org/xml/ns/security-2.0"
xmlns:web="http://geronimo.apache.org/xml/ns/j2ee/web-2.0.1">
<dep:environment>
<dep:moduleId>
<dep:groupId>wedge</dep:groupId>
<dep:artifactId>wedge-ejb</dep:artifactId>
<dep:version>1.0</dep:version>
<dep:type>car</dep:type>
</dep:moduleId>
<dep:dependencies>
<dep:dependency>
<dep:groupId>console.dbpool</dep:groupId>
<dep:artifactId>jdbc_wedgeDS</dep:artifactId>
<dep:version>1.0</dep:version>
<dep:type>car</dep:type>
</dep:dependency>
</dep:dependencies>
</dep:environment>
I've configured persistence.xml as follows
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
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_2_0.xsd">
<persistence-unit name="wedgePU" transaction-type="RESOURCE_LOCAL">
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<jta-data-source>jdbc/wedgeDS</jta-data-source>
<class>wedge.entity.Aec</class>
...
<class>wedge.entity.Tnr</class>
<properties>
<property name="openjpa.TransactionMode" value="managed" />
<property name="openjpa.ManagedRuntime"
value="jndi(TransactionManagerName=java:comp/TransactionManager)" />
<property name="openjpa.Log" value="DefaultLevel=INFO" />
</properties>
</persistence-unit>
I've created datasource as Local TX Datasource, and is resolved ok.
I've defined an EJB as follows
#Local(PruebaBL.class)
#Stateless
public class PruebaBLImpl {
#PersistenceContext()
private EntityManager em;
#TransactionAttribute(TransactionAttributeType.REQUIRED)
public void metodoPrueba(HttpServletResponse response) throws IOException, NamingException {
if (em == null) {
response.getOutputStream().println("entity manager is null");
}
I've verified that transaction begins/ends OK, but entityManager is not injected.
Some ideas?
Thanks in advance.
Saul

Answer 1

You don't need to specify the global jndi name. Inject it like this in your servlet:
#EJB
private PruebaBL pruebaBL;