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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