Till Rohrmann created FLINK-3317:
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Summary: Add timeout handler to CEP operator
Key: FLINK-3317
URL: https://issues.apache.org/jira/browse/FLINK-3317
Project: Flink
Issue Type: Improvement
Components: CEP
Affects Versions: 1.0.0
Reporter: Till Rohrmann
Priority: Minor
Currently, event sequences which exceed the defined pattern timeout will be
discarded. However, in some cases the user might be interested in getting to
know when such a timeout occurred to return a default value for these event
sequences.
Thus, the pattern API should be extended to be able to define a timeout
handler. Furthermore, the {{NFA}} has to be extended to also return the
discarded event sequences. The {{CEPOperator}} would then call for every
discarded event sequence the timeout handler.
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