CORBA23 — confusing rules for operations on Object

Summary: Section 4.3 of ptc/98-10-05 documents Object Reference Operations. These
are described as "not operations in the normal sense, in that they are
implemented directly by the ORB, not passed on to the object
implementation".

This includes a variety of operations, requiring varying contexts to be
used successfully:

• Some require remote communication to the orb of the server
  or (contrary to the quote above) may actually be passed on
  to the object implementation, or something similar like a
  servant manager (e.g. is_a, non_existent)
• some may require remote communication to an interface repository
  (e.g. get_interface)
• some require the local orb to be operational
  (e.g. create_request)
• some can function even without a local orb
  (e.g. is_nil, duplicate, release)

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