[certi-dev] DM - StartRegistrationForObjectClass

[Jan-Patrick Osterloh]

Hi!

I've a question regarding the Declaration Management, and there the behaviour of StartRegistrationForObjectClass callback. I recognised, that our federates receive an instance of the callback, when publishing a variable, i.e. directly after "publishObjectClassAttributes". The standard says the following, when to send the callback:
"At least one of the class attributes that the joined federate is publishing at the specified object class is
actively subscribed to at the specified object class or at a superclass of the specified object class by
at least one other joined federate in the federation execution."

But in my test, I receive the callback also, if no other federate has joined the federation, and I receive it even twice, if my class has the attribute "PublishSubscribe". That means, I receive it once for publishing, and the second time for subscription. But my expectation would be, that I receive no startRegistrationForObjectClass at all, because in publish case, no one has actively subscribed the class, and if I subscribe my own class it's not "one other joined federate".

I had a quick look at the source code, and indeed you send the callback in subscribeObject to all publishers including the federate itself. And what I didn't understand at all is the publishObject, where also the startRegistrationForObjectClass is sent. I would have expected, that you send a discoverObjectClass callback to the subscribers.

Best
JPO

-- 
Dipl. Inform. Jan-Patrick Osterloh
FuE Bereich Verkehr | R&D Division Transportation
Human Centered Design Group
Project Manager D3CoS

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