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ASF GitHub Bot commented on FLINK-6927: --------------------------------------- Github user dianfu commented on a diff in the pull request: https://github.com/apache/flink/pull/4153#discussion_r125173876 --- Diff: flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/pattern/Quantifier.java --- @@ -153,9 +153,8 @@ public int hashCode() { private final int to; private Times(int from, int to) { - Preconditions.checkArgument(from >= 0, "The from should be a non-negative number greater than or equal to 0."); + Preconditions.checkArgument(from > 0, "The from should be a positive number greater than 0."); --- End diff -- done. > Support pattern group in CEP > ---------------------------- > > Key: FLINK-6927 > URL: https://issues.apache.org/jira/browse/FLINK-6927 > Project: Flink > Issue Type: Sub-task > Components: CEP > Reporter: Dian Fu > Assignee: Dian Fu > > We should add support for pattern group. This would enrich the set of > supported patterns. For example, users can write patterns like this with this > feature available: > {code} > A --> (B --> C.times(3)).optional() --> D > {code} > or > {code} > A --> (B --> C).times(3) --> D > {code} -- This message was sent by Atlassian JIRA (v6.4.14#64029)