0 Replies Latest reply on Mar 13, 2007 8:10 AM by Kindor Bazul

    EJB3 container services not available withing listener ?

    Kindor Bazul Newbie

      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