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


1 ORB2
2 Object A
3 (event source)
4 Object B
5 (event target)
6 Fire event E
7 Method M(){
8 ...}
9 ORB1
10 IIOP
11 - Objects A and B are CORBA objects (thus not Java objects)
12 - Objects are defined in IDL (Interface Definition Language)
13 - IDL definitions are compiled using (Java)IDL compiler
14 - The IDL compiler generates new classes to be used by the Java compiler
15 (javac) instead of the original ones, on both the client and server side
16 - The IDL compiler generates either classes to be extended, or interfaces to be implemented
17 Object Adapter
18 serves also as a daemon

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