Hi all, Recently I tried to transfer some old applications from Storm to Flink. In Storm, the window implementation (TupleWindow) gets two methods named getNew() and getExpired() which supply the delta information of a window and therefore we wrote some stateful caches that are aware of them. However, it seems that Flink deals with the window in a different way and supplies more "formalized" APIs. So, any tips on how to adapt these delta awareness caches in Flink or do some refactors to make them suitable?
Thanks. Best, Xingcan
