Kenneth Knowles created BEAM-11049:
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Summary: Elminate CreatePCollectionView pseudo-"primitive"
Key: BEAM-11049
URL: https://issues.apache.org/jira/browse/BEAM-11049
Project: Beam
Issue Type: Improvement
Components: sdk-java-core
Reporter: Kenneth Knowles
Assignee: Kenneth Knowles
Currently each {{PCollectionView}} is "created" by a primitive
{{CreatePCollectionView}} primitive in the Java SDK. This is an artifact of how
runners translated the {{View}} transforms.
But in portability (and actually before that) PCollectionView is just a POJO of
metadata for how to read a PCollection as a side input. It is PValue to the
Java SDK but in portability there is only one kind of value: PCollection.
Runners should not depend on the exact expansion of the {{View}} transforms.
Until they are all migrated off of it, the transform must be left in the
expanion, so runners who are migrated off of it will need to remove it from
their translation or insert a noop.
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