Problems with callbacks

Hi!

I`ve some questions about callbacks: 
Is it necessary to implement the client as an server? (with starting a POA, binding to a nameserver etc.) Or does ORBacus handle this? 
What I mean is: I can connect to an server, and now I want that he can talk to the client using callbacks. Therefor there is already an method to register the client. These method gets an reference to an objecte of the client type (respectively of the interface type from Client). But I can't simple give the client reference with "this". By doing so, I get an "org.omg.CORBA.BAD_OPERATION: The delegate has not been set" Exception.

I don`t know how to go on... 
Has anybody an idea? Or simple a link to a site with more infos to callbacks? 

Kind regards

Manuel Fünfrocken


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University of Applied Science 
Saarland/Germany 
                 

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