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Posted to dev@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2015/03/24 17:45:53 UTC

[jira] [Created] (FLINK-1780) Rename FlatCombineFunction to GroupCombineFunction

Fabian Hueske created FLINK-1780:
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             Summary: Rename FlatCombineFunction to GroupCombineFunction
                 Key: FLINK-1780
                 URL: https://issues.apache.org/jira/browse/FLINK-1780
             Project: Flink
          Issue Type: Improvement
          Components: Java API, Scala API
    Affects Versions: 0.9
            Reporter: Fabian Hueske
            Priority: Minor
             Fix For: 0.9


The recently added {{GroupCombineOperator}} requires a {{FlatCombineFunction}}, however a {{GroupReduceOperator}} requires a {{GroupReduceFunction}}. {{FlatCombineFunction}} and {{GroupReduceFunction}} work on the same types of parameters (Iterable and Collector).

Therefore, I propose to change the name {{FlatCombineFunction}} to {{GroupCombineFunction}}. Since the function could not be independently used until recently, this API breaking change should be OK.



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