Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/3207#discussion_r97775106
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/AllWindowedStream.java
---
@@ -279,6 +286,202 @@ public AllWindowedStream(DataStream<T> input,
return input.transform(opName, resultType,
operator).forceNonParallel();
}
+ //
------------------------------------------------------------------------
+ // AggregateFunction
+ //
------------------------------------------------------------------------
+
+ /**
+ * Applies the given fold function to each window. The window function
is called for each
+ * evaluation of the window for each key individually. The output of
the reduce function is
--- End diff --
Typo: "reduce function"
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