Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/9256#discussion_r44067879
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/dstream/PairDStreamFunctions.scala
---
@@ -350,6 +349,18 @@ class PairDStreamFunctions[K, V](self: DStream[(K, V)])
)
}
+ /** TODO: Add scala docs */
+ def trackStateByKey[S: ClassTag, T: ClassTag](
--- End diff --
For the method signature, since `spec` contains `ClassTag`s for `S` and
`T`, we can get it from `spec` and don't need to add `ClassTag` in the method
signature.
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