Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/9636#discussion_r44591447
--- Diff:
examples/src/main/java/org/apache/spark/examples/streaming/JavaStatefulNetworkWordCount.java
---
@@ -105,9 +87,22 @@ public static void main(String[] args) {
}
});
+ // Update the cumulative count function
+ final Function4<Time, String, Optional<Integer>, JavaState<Integer>,
Optional<Tuple2<String, Integer>>> trackStateFunc =
--- End diff --
Need the key to emit the word and its count
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