[jira] [Created] (FLINK-12985) Move & rename StreamTransformation to org.apache.flink.api.dag.Transformation

[Shang Yuanchun (Jira)]

Dawid Wysakowicz created FLINK-12985:
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             Summary: Move & rename StreamTransformation to org.apache.flink.api.dag.Transformation
                 Key: FLINK-12985
                 URL: https://issues.apache.org/jira/browse/FLINK-12985
             Project: Flink
          Issue Type: Improvement
          Components: API / DataStream
    Affects Versions: 1.9.0
            Reporter: Dawid Wysakowicz
            Assignee: Dawid Wysakowicz
             Fix For: 1.9.0


It is quite strange to have a streaming package in {{flink-core}}. Moreover right now the {{StreamTransformation#setChainingStrategy}} throws Exception in half of the transformation.
I suggest to:
# rename the {{StreamTransformation}} to {{org.apache.flink.api.dag.Transformation}}
# extract {{#setChainingMethod}} to a separate class {{PhysicalTransformation}} & move the {{ChainingStrategy}} back to flink-streaming-java module



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