Thomas Groh created BEAM-1949:
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Summary: 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
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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