[jira] [Created] (FLINK-16316) Provide new base class for StreamOperators

[Shang Yuanchun (Jira)]

Piotr Nowojski created FLINK-16316:
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             Summary: Provide new base class for StreamOperators
                 Key: FLINK-16316
                 URL: https://issues.apache.org/jira/browse/FLINK-16316
             Project: Flink
          Issue Type: Sub-task
          Components: API / DataStream
    Affects Versions: 1.10.0
            Reporter: Piotr Nowojski
            Assignee: Piotr Nowojski
             Fix For: 1.11.0


Current {{AbstractStreamOperator}} has at least couple of issues:
# it's using deprecated {{SetupableStreamOperator}} interface, instead of relaying on {{StreamOperatorFactory}}.
# it depends on {{OneInputStreamOperator}} and {{TwoInputStreamOperator}} interfaces, by providing indirectly implementation of methods like {{processLatencyMarker}}, {{processLatencyMarker1}} and {{processLatencyMarker2}}

Both of those things makes {{AbstractStreamOperator}} an unsuitable base implementation for {{MultipleInputStreamOperator}}. We should provide a new base class (or hierarchy of base classes), without those two limitations.

CC [~aljoscha]



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