Injecting EntityManager into Interceptor class, naming exception

Question

Hello , I try the code below :
class MyInterceptor {
@PersistenceContext(unitName="Model")
private EntityManager em;
@AroundInvoke
doIntercept....
but I got a naming exception , oc4j told me ....failed to inject the resource.....
Anyone know ,why ?
Anyway I resolved to make a special name into context :
class MySessioBean { // this bean use MyInterceptor
@PersistenceContext(name ="AdminPC",unitName="Model")
private EntityManager em;
and on MyInterceptor :
class MyInterceptor{
@AroundInvoke
public Object doIntercept(InvocationContext ic)throws BusinessException{
try {
InitialContext ctx = new InitialContext();
EntityManager temp = (EntityManager)ctx.lookup("java:comp/env/AdminPC");
em =temp;
} catch (NamingException e) {
// TODO
}

Answer 1

Hi,
Try verifying that all configuration details are set for OC4J.
You may refer the to following end-to-end quickstart enterprise application tutorial that contains the same @PersistenceContext injection on a stateless session ejb bean.
http://wiki.eclipse.org/EclipseLink/Examples/JPA/OC4J_Web_Tutorial
specifically
http://wiki.eclipse.org/EclipseLink/Examples/JPA/OC4J_Web_Tutorial#Perform_a_JPQL_query
and code
http://dev.eclipse.org/svnroot/rt/org.eclipse.persistence/trunk/examples/org.eclipse.persistence.example.jpa.server.oc4j.enterpriseEJB/ejbModule/org/eclipse/persistence/example/jpa/server/business/ApplicationService.java
If configurations match between both apps, then we can triage further.
thank you
/michael
www.eclipselink.org