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https://issues.apache.org/jira/browse/FLINK-2457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14659947#comment-14659947
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ASF GitHub Bot commented on FLINK-2457:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/983#issuecomment-128350696
Some comments inline, other than that, two issues with this pull request:
- A lot of whitespace reformatting. We explicitly ask not to do this.
Some IDEs do it automatically, but you can deactivate it. It makes diffs
dangerously convoluted.
- Tuple0 can be treated as a singleton, since it has no state. Any reason
not to do this?
> Integrate Tuple0
> ----------------
>
> Key: FLINK-2457
> URL: https://issues.apache.org/jira/browse/FLINK-2457
> Project: Flink
> Issue Type: Improvement
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Minor
>
> Tuple0 is not cleanly integrated:
> - missing serialization/deserialization support in runtime
> - Tuple.getTupleClass(int arity) cannot handle arity zero, ie, cannot create
> an instance of Tuple0
> Tuple0 is currently only used in Python API, but will be integrated into
> Storm compatibility, too.
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