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https://issues.apache.org/jira/browse/BEAM-1949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15991906#comment-15991906
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ASF GitHub Bot commented on BEAM-1949:
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Github user asfgit closed the pull request at:
https://github.com/apache/beam/pull/2810
> Rename DoFn.Context#sideOutput to #output
> -----------------------------------------
>
> Key: BEAM-1949
> URL: https://issues.apache.org/jira/browse/BEAM-1949
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Thomas Groh
> Assignee: Thomas Groh
> Fix For: First stable release
>
>
> Having two methods, both named output, one which takes the "main output type"
> and one that takes a tag to specify the type more clearly communicates the
> actual behavior - sideOutput isn't a "special" way to output, it's the same
> as output(T), just to a specified PCollection. This will help pipeline
> authors understand the actual behavior of outputting to a tag, and detangle
> it from "sideInput", which is a special way to receive input. Giving them the
> same name means that it's not even strange to call output and provide the
> main output type, which is what we want - it's a more specific way to output,
> but does not have different restrictions or capabilities.
> This is also a pretty small change within the SDK - it touches about 20
> files, and the changes are pretty automatic.
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