Basic HTML version of Foils prepared May 19 1999

Foil 34 Example: Counter/Timer in Java

From CORBA Common Object Request Broker Architecture Basic Information Track Computational Science Course CPS616 -- Spring Semester 1999. by Geoffrey Fox, Wojtek Furmanski, Nancy McCracken, Chao-Wei Ou, Shrideep Pallickara
1 We will build CORBA object for the Count class using Visigenic VisiBroker ORB on the server, to be used for timing the client/server communication overhead in CORBA
2 We will use Visigenic ORB on the client which is packaged in every Netscape communicator and so can be driven simply from applets
3 The following code elements are displayed:
  • IDL specification of the Count class (provided by developer)
  • Java interface, Server-side Skeleton and Implementation Template, generated by IDL->Java pre-compiler
  • Object implementation (CountImpl), constructed by developer by completing the Implementation Template
  • Main Server program and Main Client Program, constructed by developer and using the Count object to time the performance of its method invocation
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