|Client-side request interceptor.
A request Interceptor is designed to intercept the flow of a
request/reply sequence through the ORB at specific points so that
services can query the request information and manipulate the service
contexts which are propagated between clients and servers. The primary
use of request Interceptors is to enable ORB services to transfer
context information between clients and servers. There are two types
of request Interceptors: client-side and server-side.
To write a client-side Interceptor, implement the