Some Definitions

• ORB:
– find the object implementation for the request, prepare the object
implementation to receive the request and communicate the data
making up the request.
– ORB throws exceptions
– ORB implementation is not defined in CORBA
• Object Adapter (POA, BOA, …)
– provides ORB services to particular groups of object implementations
– generation and interpretation of object references, method invocation,
security of interactions, object and implementation activation and
deactivation, mapping object references to implementations, and
registration of implementations.
• IIOP: Internet Inter-ORB Protocol
– ORB’s of different vendors can talk
– TCP/IP implementation of GIOP