I'm doing file upload and have implemented it the way it is suggested here:

http://wiki.apache.org/myfaces/Setup_For_File_Uploads

On the view I have this code to do upload:

  | <t:inputFileUpload storage="file" immediate="true">
  |         <f:valueChangeListener type="com.myorg.foo.UploadListener" />
  | </t:inputFileUpload>

  | 
  | 
  | The listener that processes the upload is something like :
  | 
  | public class UploadListener implements ValueChangeListener {
  |         public void processValueChange(ValueChangeEvent event) throws 
AbortProcessingException {
  | 
  |                 
  |                 // Upload and do something with uploadedFile
  |         }
  | }
  | 

With the listener being a POJO, everything works OK.

Now I have changed to code of the UploadListener to do some logging and save 
the file to a location depending on the username. So to me it sounds like 
making it an EJB3 component is the best approach:


  | @Stateless
  | @Name("uploadListener")
  | public class UploadListener implements ValueChangeListener {
  |         @Logger
  |         private Log log;
  | 
  |         @PersistenceContext
  |         private EntityManager em;
  | 
  |         @In User user;
  | 
  |         public void processValueChange(ValueChangeEvent event) throws 
AbortProcessingException {
  | 
  |                 if (log == null) System.out.println("Log is null !!" );
  |                 if (em == null) System.out.println("EntityManager is null 
!!" );
  |                 if (user == null) System.out.println("User is null !!" );
  | 
  |                 // Upload and do something with uploadedFile
  |         }
  | }
  | 

But here where I have a surprise. I'm getting:
    Error EntityManager is null !!
    User is null !!
    Log is null !!

I have tried to make it implement a local empty interface as well, but still no 
success.
Am I doing the right thing ? Any idea ?

Thx

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