[jira] [Commented] (BEAM-1223) Add static factory methods for Sum.[*]Fn classes

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BEAM-1223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15791240#comment-15791240 ] 

ASF GitHub Bot commented on BEAM-1223:
--------------------------------------

GitHub user staslev opened a pull request:

    https://github.com/apache/beam/pull/1723

    [BEAM-1223] Introduced Sum,Min,Max#ofLongs()/ofDoubles()/ofIntegers()…

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    ---
    
    R: @lukecwik 
    
    About half way into this I was questioning the benefit-cost ratio, but since consistency is what this PR is all about I figured bailing out would not be appropriate. 
    
    Let me know how it looks.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/staslev/incubator-beam BEAM-1223-Add-static-factory-methods-for-CombineFn-classes

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/beam/pull/1723.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1723
    
----
commit 70f8db4021b7c9e49a280edb740667ae67224ef7
Author: Stas Levin <st...@gmail.com>
Date:   2017-01-01T11:58:32Z

    [BEAM-1223] Introduced Sum,Min,Max#ofLongs()/ofDoubles()/ofIntegers() and eliminated the direction instantiation of the corresponding classes.

----


> Add static factory methods for Sum.[*]Fn classes
> ------------------------------------------------
>
>                 Key: BEAM-1223
>                 URL: https://issues.apache.org/jira/browse/BEAM-1223
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-core
>            Reporter: Stas Levin
>            Assignee: Stas Levin
>            Priority: Minor
>
> {{Sum.SumDoubleFn}}, {{SumIntegerFn}} and {{SumLongFn}} are not using the {{X.of()}} or {{X.from()}} or other instance creation via static method patterns that are ubiquitous in Beam.
> Following a discussion on the dev list, it would be great to preserve a consistent look and feel and change the creation patterns for these classes to something like {{SumFn.ofLong()}} etc.



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