code: public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, java.io.IOException
      {
          if (flavor.isMimeTypeEqual(OJBMETADATA_FLAVOR))
              return selectedDescriptors;
          else
              throw new UnsupportedFlavorException(flavor);
      }
docs: Returns an object which represents the data to be transferred.  The class
  of the object returned is defined by the representation class of the flavor.
  
  @param flavor the requested flavor for the data
  @see DataFlavor#getRepresentationClass
  @exception IOException                if the data is no longer available
  in the requested flavor.
  @exception UnsupportedFlavorException if the requested data flavor is
  not supported.