shuai.xu created FLINK-16010:
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Summary: 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
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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