[jira] [Created] (FLINK-5845) CEP: unify key and non-keyed operators

[Shang Yuanchun (Jira)]

Kostas Kloudas created FLINK-5845:
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             Summary: CEP: unify key and non-keyed operators
                 Key: FLINK-5845
                 URL: https://issues.apache.org/jira/browse/FLINK-5845
             Project: Flink
          Issue Type: Bug
          Components: CEP
    Affects Versions: 1.3.0
            Reporter: Kostas Kloudas
            Assignee: Kostas Kloudas
             Fix For: 1.3.0


Currently the keyed and non-keyed operators in the CEP library have different implementations. This issue targets to unify them into one.

This new implementation will always be applied on a keyed stream, and in the case of non-keyed usecases, the input stream will be keyed on a dummy keye, as done in the case of the {{DataStream.windowAll()}} method, where the input stream is keyed using the {{NullByteKeySelector}}.

This is a first step towards making the CEP operators rescalable.



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