* event handler for data retrieval
* Cookie für itab aus Zwischenspeicher holen
* und damit Layout-Tabelle füllen
  username = sy-uname.
  CALL METHOD cl_bsp_server_side_cookie=>get_server_cookie
    EXPORTING
      name                  = 'HALLO'
      application_name      = runtime->application_name
      application_namespace = runtime->application_namespace
      username              = username
      session_id            = runtime->session_id
      data_name             = 'itab'
    CHANGING
      data_value            = itab.
  DESCRIBE TABLE itab LINES count.

  CALL METHOD application->count_check
    EXPORTING
      page       = page
      count      = count
      flug_input = wa1
    IMPORTING
      mess       = mess
      cursor     = cursor.

  CALL METHOD application->get_message_list
    EXPORTING
      page     = page
    CHANGING
      mess_tab = mess_tab.