/// @param type option type.
/// @param begin beginning of the option buffer.
/// @param end end of the option buffer.
+ /// @param callback An instance of the function which parses packet options.
+ /// If this is set to non NULL value this function will be used instead of
+ /// @c isc::dhcp::LibDHCP::unpackOptions6 and
+ /// isc::dhcp::LibDHCP::unpackOptions4.
///
/// @return instance of the DHCP option.
/// @throw InvalidOptionValue if data for the option is invalid.
/// @param u option universe (V4 or V6).
/// @param type option type.
/// @param buf option buffer.
+ /// @param callback An instance of the function which parses packet options.
+ /// If this is set to non NULL value this function will be used instead of
+ /// @c isc::dhcp::LibDHCP::unpackOptions6 and
+ /// isc::dhcp::LibDHCP::unpackOptions4.
///
/// @return instance of the DHCP option.
/// @throw InvalidOptionValue if data for the option is invalid.
///
/// @param u universe (V4 or V6).
/// @param type option type.
+ /// @param encapsulated_space An option space being encapsulated by the
+ /// options created by this factory function. The options which belong to
+ /// encapsulated option space are sub options of this option.
/// @param begin iterator pointing to the beginning of the buffer.
/// @param end iterator pointing to the end of the buffer.
+ /// @param callback An instance of the function which parses packet options.
+ /// If this is set to non NULL value this function will be used instead of
+ /// @c isc::dhcp::LibDHCP::unpackOptions6 and
+ /// isc::dhcp::LibDHCP::unpackOptions4.
/// @tparam T type of the data field (must be one of the uintX_t or intX_t).
///
/// @throw isc::OutOfRange if provided option buffer length is invalid.