Operation of Windows and Triggers

[Piyush Shrivastava]

I wanted to know how Windows and Triggers work in Flink. I am creating a time 
window of 20 seconds and a count trigger of 100.
stream.keyBy(0)
             .timeWindow(Time.seconds(20))
             .trigger(CountTrigger.of(100))
In this case, when will my window get triggered? When 20 seconds has passed, 
100 messages are passed? 

Thanks and Regards,Piyush Shrivastava
http://webograffiti.com