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A Little About ORBs. As specified by the industry consortium -
OMG (Object Management Group), an
ORB or Object Request Broker handles service requests from client objects
that provide services in distributed systems. For a system user, the use of
the ORB means that both remote and local services will appear to run locally.
Each object that can provide a service will have a publicly defined
interface (written in the independent Interface Definition Language, IDL)
available in its ORB for other objects through their ORBs. This interface
enables a remote client to request a service while interacting only with
the server object's interface and not with its underlying implementation.
When ORBs, regardless of vendor or object-oriented language (Java, C++,
Smalltalk, etc.) are written to the OMG's CORBA 2.0 specification, client
and server objects can interoperate seamlessly with each others, regardless
of difference in their object language variations, locations of origination
or even different platforms.
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