anchor.diff:      io_xml->add( iv_name = 'DATA'
                    ig_data = l_base64str ).
   
  -    " TODO normal params serialization
  -
  -    DEFINE w3mi_save_param.
  -      READ TABLE lt_w3params INTO ls_wwwparam WITH KEY name = &1.
  -      IF sy-subrc IS NOT INITIAL.
  -        _raise 'Cannot read required W3xx param'.
  -      ENDIF.
  -      io_xml->add( iv_name = &1
  -                   ig_data = ls_wwwparam-value ).
  -    END-OF-DEFINITION.
  -
  -    w3mi_save_param 'fileextension'.
  -    w3mi_save_param 'filename'.
  -    w3mi_save_param 'filesize'.
  -    w3mi_save_param 'mimetype'.
  -    w3mi_save_param 'version'.
  +    io_xml->add( iv_name = 'PARAMS'
  +                 ig_data = lt_w3params ).
   
     ENDMETHOD.                    "serialize
   
  
positive.code:   METHOD lif_object~delete.
      DATA ls_key TYPE wwwdatatab.
  
      ls_key-relid = ms_item-obj_type+2(2).
      ls_key-objid = ms_item-obj_name.
  
      CALL FUNCTION 'WWWDATA_DELETE'
        EXPORTING  key               = ls_key
  
negative.code:   " W3xx EXISTS
    """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
    METHOD lif_object~exists.
      DATA ls_key   TYPE wwwdatatab.
  
      ls_key = init_key( ).
  
      SELECT SINGLE objid into ls_key-objid
        FROM wwwdata
        WHERE relid = ls_key-relid
        AND   objid = ls_key-objid
        AND   srtf2 = 0.
  
      IF sy-subrc IS NOT INITIAL.
        RETURN.
      ENDIF.
  
  