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From Gábor Hermann (JIRA) <j...@apache.org>
Subject [jira] [Created] (FLINK-2303) Add count method to GroupedDataStream
Date Wed, 01 Jul 2015 09:07:05 GMT
Gábor Hermann created FLINK-2303:
------------------------------------

             Summary: Add count method to GroupedDataStream
                 Key: FLINK-2303
                 URL: https://issues.apache.org/jira/browse/FLINK-2303
             Project: Flink
          Issue Type: Improvement
          Components: Streaming
            Reporter: Gábor Hermann
            Priority: Minor


As aggregations from DataStream was removed, the {{count}} method was also removed. A count
method should be introduced to the {{GroupedDataStream<T>}} that returns a {{Tuple2<T,
Long>}} of the latest element and number of the elements in the stream with the same key.



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