Asteriskjava doubt

Hi,
I am new to telephony programming and am having few troubles with Manager API in Asterisk-java.
Is it possible to find out in a MeetMe conf to find which user all users are talking currently?
I see an event in the API (MeetMeTalkingEvent).
If someone has implemented it any application, could you oblige me by giving an example as to how to use this?

Thanks

Disclaimer: I don’t know anything about Asterisk-Java.

The manager event for a talking user is MeetmeTalking.
See line ~2117 of meetme.c from Asterisk 1.8