Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/2761#discussion_r124658721 --- Diff: flink-examples/flink-examples-streaming/src/main/java/org/apache/flink/streaming/examples/windowing/GroupedProcessingTimeWindowExample.java --- @@ -126,4 +94,40 @@ public void apply(Long key, Window window, Iterable<Tuple2<Long, Long>> values, return new Tuple2<>(value1.f0, value1.f1 + value2.f1); } } + + /** + * Parallel data source that serves a list of key-value pair. --- End diff -- +s -> `... list of key-value pairs.`
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