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https://issues.apache.org/jira/browse/FLINK-7293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110556#comment-16110556
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ASF GitHub Bot commented on FLINK-7293:
---------------------------------------
Github user dawidwys commented on a diff in the pull request:
https://github.com/apache/flink/pull/4418#discussion_r130564730
--- Diff:
flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/CEP.java ---
@@ -38,4 +40,17 @@
public static <T> PatternStream<T> pattern(DataStream<T> input,
Pattern<T, ?> pattern) {
return new PatternStream<>(input, pattern);
}
+
+ /**
+ * Creates a {@link PatternStream} from an input data stream and a
pattern.
+ *
+ * @param input DataStream containing the input events
+ * @param pattern Pattern specification which shall be detected
+ * @param comparator Comparator to sort events
--- End diff --
could you describe in the doc when the operator is applied.
> Support custom order by in PatternStream
> ----------------------------------------
>
> Key: FLINK-7293
> URL: https://issues.apache.org/jira/browse/FLINK-7293
> Project: Flink
> Issue Type: Sub-task
> Components: CEP
> Reporter: Dian Fu
> Assignee: Dian Fu
>
> Currently, when {{ProcessingTime}} is configured, the events are fed to NFA
> in the order of the arriving time and when {{EventTime}} is configured, the
> events are fed to NFA in the order of the event time. It should also allow
> custom {{order by}} to allow users to define the order of the events besides
> the above factors.
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