Basic HTML version of Foils prepared July 6 99

Foil 16 How is this possible?

From Tutorial on Java for Middle tier in Computing Portals Tutorials at ACM Java Grande Meeting -- June 14 99. by Tom Haupt


ORB2
Object A
(event source)
Object B
(event target)
Fire event E
Method M(){
...}
ORB1
IIOP
- Objects A and B are CORBA objects (thus not Java objects)
- Objects are defined in IDL (Interface Definition Language)
- IDL definitions are compiled using (Java)IDL compiler
- The IDL compiler generates new classes to be used by the Java compiler
(javac) instead of the original ones, on both the client and server side
- The IDL compiler generates either classes to be extended, or interfaces to be implemented
Object Adapter
serves also as a daemon



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