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https://issues.apache.org/jira/browse/FLINK-16010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17037508#comment-17037508
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Dian Fu commented on FLINK-16010:
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As [~dwysakowicz] mentioned in FLINK-9431, I also think that this is valid
requirement. I like the design overall as it will not introduce additional APIs
and the design seems clean and feasible for me.
[~aitozi] It will be great if you could share some thoughts on this design as I
noticed that you have proposed another design before.
> Support notFollowedBy with interval as the last part of a Pattern
> -----------------------------------------------------------------
>
> Key: FLINK-16010
> URL: https://issues.apache.org/jira/browse/FLINK-16010
> Project: Flink
> Issue Type: New Feature
> Components: Library / CEP
> Affects Versions: 1.9.0
> Reporter: shuai.xu
> Priority: Major
>
> Now, Pattern.begin("a").notFollowedBy("b") is not allowed in CEP. But this a
> useful in many applications. Such as operators may want to find the users who
> created an order but didn't pay in 10 minutes.
> So I propose to support that notFollowedBy() with a interval can be the last
> part of a Pattern.
> For example, Pattern.begin("a").notFollowedBy("b").within(Time.minutes(10))
> will be valid in the future.
> Discuss in dev mail list is
> [https://lists.apache.org/thread.html/rc505728048663d672ad379578ac67d3219f6076986c80a2362802ebb%40%3Cdev.flink.apache.org%3E]
>
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