public boolean isExistingCommand(){
  return (!name.equals(CommandTagHandle.CMD_UNKNOWN));
}

public boolean isExistingCommand ( ) { return ( ! name . equals ( CommandTagHandle . CMD_UNKNOWN ) ) ; }
check whether the present commandtaghandle object represents a commandtag that exists on the server . if not , the client will not be able to execute the command . preferably , clients should check isexistingcommand ( ) before they call the setvalue ( ) method . if the command doesn ' t exist , setvalue ( ) will throw a commandtagvalueexception .
