[jboss-user] [JNDI/Naming/Network] - Re: Configuring persistence unit and accessing EntityManager

[jsolderitsch]

"jaikiran" wrote : anonymous wrote : @WebService()
  |   | @PersistenceContext(name = "persistence/LogicalName", unitName = "MissionStatusProjectPU2")
  |   | public class MissionStatusService {
  |   | 
  |   | EntityManager em;
  |   | 
  |   | public MissionStatusService() {
  |   | 
  |   | try {
  |   | Context ctx = (Context) new javax.naming.InitialContext().lookup("java:comp/env");
  |   | em = (EntityManager) ctx.lookup("persistence/LogicalName");
  |   | } catch (NamingException ex) {
  |   | ex.printStackTrace();
  |   | }
  |   | 
  |   | } 
  | 
  | How about this:
  | 
  | 
  |   | @WebService()
  |   | public class MissionStatusService {
  |   | 
  |   | @PersistenceContext
  |   | EntityManager em;
  |   | 
  |   | public MissionStatusService() {
  |   |  //do nothing
  |   | 
  |   | } 
  |   | .....
  |   | }
  | 

I did try that.

Then my web service handler that uses the em to create the response fails with a null pointer error for em.

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