anchor.diff:  
       METHODS show_url
         IMPORTING iv_url TYPE clike.
  +
  +    METHODS render
  +      RAISING lcx_exception.
   
       METHODS view
         IMPORTING iv_html TYPE string.
  
positive.code:           EXPORTING
              is_key = ls_key.
          lcl_gui=>get( )->call_page( lo_display ).
        WHEN 'edit'.
          CREATE OBJECT lo_edit
            EXPORTING
              is_key = ls_key.
          lcl_gui=>get( )->call_page( lo_edit ).
        WHEN 'delete'.
          delete( ls_key ).
          rv_state = gc_event_state-re_render.
  
negative.code:     METHODS go_home
        RAISING lcx_exception.
  
      METHODS back
        RETURNING VALUE(rv_exit) TYPE xfeld
        RAISING   lcx_exception.
  