JNDI lookup in OpenJPA.

[Murali]

Hi,

I am new to OpenJPA technology.
  
I am having problems while performing JNDI lookup for the bean resources to get 
the EntityManagerFactory instance.
 
I am trying to perform JNDI lookup operation to fetch the DataSource & 
EntityManagerFactory instances to connect to the DataBase.
 
Following is the code snippet:
  
public static EntityManagerFactory  getOpenJPASessionFactory(String 
jndiSessionFactoryName)  throws DaoException {  
    EntityManagerFactory emFactory = null;  
    try {
       Context ctx = new InitialContext();
       emFactory = (EntityManagerFactory) ctx.lookup(jndiSessionFactoryName);
    }catch (ClassCastException cce) {
       throw new DaoException(DaoConstants.OPENJPA_FACTORY_ERROR, cce);  
    } catch (NamingException ne) {
       throw new DaoException(DaoConstants.OPENJPA_FACTORY_ERROR, ne);  
    }  
    return emFactory; 
} 
  
When i try to get the EntityManager Instance from Factory instance, it says 
"jndiSessionFactoryName" is not bound, because of this i am not able to get the 
Datasource for performing the Database operations.
  
Following are the environment details:
  
Application Server: Jboss-4.0.4.GA
Operating System with version: Redhat Linux 4, with kernel version 2.6.9.42 
Elsmp 
OpenJPA version: 0.9.7 
JDK version: Jdk 1.5.0_07
Database: IBM DB2  version 9.1

Is there any interoperability issue of OpenJPA with Jboss-4.0.4.GA?
Do we have to upgrade to any newer version of Jboss ?
  
Please help me in this regard. 
  
Thanks in advance.
  
Waiting for your response.
  
Regards,
Murali Krishna Adiraju.