mayuehappy commented on code in PR #19259:
URL: https://github.com/apache/flink/pull/19259#discussion_r843427786
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flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/operator/CepOperator.java:
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@@ -417,6 +405,9 @@ private void processEvent(NFAState nfaState, IN event, long
timestamp) throws Ex
timestamp,
afterMatchSkipStrategy,
cepTimerService);
+ if (nfa.getWindowTime() > 0 && nfaState.isNewStartPartialMatch()) {
+ registerTimer(timestamp + nfa.getWindowTime());
Review Comment:
In my understanding, if there is a window in NFA then we need to register a
timer to trigger this window. But if there is no window, what is the purpose of
registering the timer of current watermark +1 here?
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