FYI, I have posted the same question (a bit more polished) in
https://stackoverflow.com/questions/61193662/dataset-datastream-of-type-class-interface
Also, you can find the code in this repo:
https://github.com/salvalcantara/flink-events-and-polymorphism
--
Sent from: http://apache-flink-use
I am just experimenting with the usage of Scala type classes within Flink. I
have defined the following type class interface:
```scala
trait LikeEvent[T] {
def timestamp(payload: T): Int
}
```
Now, I want to consider a `DataSet` of `LikeEvent[_]` like this:
```scala
// existing classes t
