Using a single NetConnection instance to dispatch multiple calls to backend

I have a scenario where calls to backend have to be dispatched in parallel because the calls are independent and dispatching them serially would cost performance.
If I use a single instance of NetConnection to send multiple requests to backend -  one after the other without waiting for responses to previous requests to arrive - and there is a NetStatus event once the calls have been dispatched because, for example, the network connection went down, is it possible to find out which of the calls succeeded and which ones failed? Is it safe to assume that if the onResult function of a particular call's responder was not invoked, then that request did not reach the backend? If not, what is the recommended way to implement this? Should a separate instance of NetConnection be used for each call?  How expensive would it be? How are multiple NetConnection instances connected to the same endpoint handled under the hood?
Thanks.

Joe,
I don´t know a specific reference for it, I remembered it because when I was looking the documentation on the site, I saw the reference "Support for multiple database connections" in the URL: APEX Listener New Features 2.0</title><meta name="Title" content="APEX Listener New Features 2.0…
I´ve tried to use APEX listener some time ago, but in a earlier version together with glassfish. So, since for me was only one database, I created the necessary amount of DAD´s on my database, each one for a specific port.
Check the link and you´ll see the same information I saw.
Thanks.
José Valdézio
"Neo, everything that Oracle told me, became true, except extinguish bugs in a first release."

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