Hey! I started putting together a guide/design document for the streaming operator state interfaces and implementations. The idea would be to create a doc that contains all the details about the implementations so anyone can use it as a reference later.
https://cwiki.apache.org/confluence/display/FLINK/Stateful+Stream+Processing It will probably take me a couple of days to finish it, but in any case feel free to comment. Cheers, Gyula
