A Dynamic Invocation Interface request
is comprised of an object reference, an operation, a list of arguments for
the operation, and a return value. A NamedValue is used to represent each
element of the argument list and the return value. A NamedValue is also used
to represent each element of the property list associated with a Context.
The ORB::create_named_value method is used to create an empty NamedValue.
The NVList class provides methods to manage a list of named values. For additional
information, see the NVList, Request, Context, and ORB class descriptions.