A construct containing the information needed to specify an object within an
ORB. An object reference is used in method invocations to locate a CORBA object.
Object references are the CORBA object equivalent to programming language-specific
object pointers. They may be obtained from a factory object or from the Naming
Service. An object reference, which is opaque (its internal structure is irrelevant
to application developers), identifies the same CORBA object each time it is
used. It is possible, however, for multiple object references to refer to the
same CORBA object.