Oracle 11gR2 - Dynamic Registration
why do you &quot;need&quot; to use this parameter?  I suspect yet another x-y question - that you are asking the wrong question to solve the wrong problem. Alternatively, why can't you just add the necessary entry to the listener configuration?
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=3010))(Presentation=HTTP)(Session=RAW))
    )
  )