Basic HTML version of Foils prepared July 14 97

Foil 101 Aspects of Java ORB based Middleware

From Web Technology as the basis of Portable High Quality HPCN Software Review Meeting of PSPTA Group Manchester UK, Garland Texas(E-systems), Winnipeg Canada(HPCS'97) -- July 1,9,12 97. by Geoffrey C. Fox


The new emergent Object Web framework includes Web servers in the middleware, Java applets in the front-end and Java ORBs on both sides.
Client-side ORB (or ORBlet) can be either downloaded as part of the applet, or resident on the client host, or embedded in the browser (as planned by Netscape).
Applet downloads via HTTP and connects via ORBlet's IIOP to a middleware ORB. This middleware ORB can be either another server or part of the Web server.
Middleware ORB connects via IIOP to other ORBs on the CORBA bus. This mechanism enables global connectivity via CORBA white/yellow page services such as Naming Service or Trader Service and their federations.
Client-side ORBlet is also a lightweight server - hence clients can be called by servers via the CORBA callback mechanism. This enables interactive feedback, asynchronous notification and a variety of collaboratory frameworks over the CORBA bus.



© Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

If you have any comments about this server, send e-mail to webmaster@npac.syr.edu.

Page produced by wwwfoil on Sat Sep 20 1997