Hi BW, Thanks for your question. It took us about a weekend to perform the transition originally back in the 2001-2002 timeframe, when we moved over from CORBA to Java's Remote Method Invocation (RMI) mainly due to the clean separation of concerns in our messaging layer and between it and the other components (query server, profile, and product server) and the rest of the information integration code in OODT.
As for the rest of the system since then we've since transitioned away from RMI for the most part and use XML-RPC and REST/HTTP as the main communication forms, with similar transition times, and good results. HTH! Cheers, Chris On Jan 11, 2012, at 1:26 PM, B W wrote: > What was the time frame and difficulty in transitioning away from > CORBA in the messaging connector for Query Servlet dependency > injection? > > BW ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Chris Mattmann, Ph.D. Senior Computer Scientist NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA Office: 171-266B, Mailstop: 171-246 Email: [email protected] WWW: http://sunset.usc.edu/~mattmann/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Adjunct Assistant Professor, Computer Science Department University of Southern California, Los Angeles, CA 90089 USA ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
