Github user tweise commented on the pull request:
https://github.com/apache/incubator-apex-core/pull/313#issuecomment-215984811
The common interface that we introduce for a vertex in the logical DAG, it
could probably need some broader review and discussion. As for the naming,
other candidates I have: LogicalDagNode, LogicalOperator.
I prefer to keep the user facing term "operator" stable and consistent. The
new interface we discuss is more of an internal detail to process operators in
a uniform manner. As such, it would be nice to not even see it as top level
interface.
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