Tutorial 1-B Siegel - CORBA3tut

Object Management GroupExamining the New CORBA 3 SpecificationsJon Siegel, Ph.D.Director, TechnologyTransferObject Management Groupsiegel@omg.org508-820-43003/1/01 1Object Management GroupCORBA 3.0 Will Add --• Improved Java and Internet Integration– Java-to-IDL (reverse) Mapping– Firewall Specification– CORBA Object URLs • Quality of Service Control– Asynchronous Invocation/Messaging– Invocation QoS Control– Realtime, Minimum, Fault Tolerant CORBA• CORBA Component Model– Objects Pass-by-Value– Component container• Transactional, Persistent, Secure– Distribution Format– Scripting Language Specification3/1/01 Copyright © 2000 Object Management Group 2Object Management GroupThe CORBA 2.0/2.1 Client…• Can invoke and pass CORBA objects by reference only• Can invoke synchronously using the SII or DII, or deferred-synchronous using DII only3/1/01 Copyright © 2000 Object Management Group 3Object Management GroupThe CORBA 3 Client…• Can invoke synchronously or asynchronously on any CORBA object, using either SII or DII• Can make time-independent invocations• Can negotiate a Quality of Service level with the server and network• Can take advantage of a reliable network infrastructure• Can invoke and pass CORBA objects by reference, and pass CORBA valuetypes by value• Can find and invoke objects using URL-format object references• Can invoke operations on RMI/IDL Java objects• Can deal with both client-side and server-side firewalls• ...