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Ted Yu commented on FLINK-6772: ------------------------------- {code} + for (String key: path.keySet()) { + List<T> events = path.get(key); {code} Instead of calling keySet(), entrySet() should be used. This would avoid the path.get() call. > Incorrect ordering of matched state events in Flink CEP > ------------------------------------------------------- > > Key: FLINK-6772 > URL: https://issues.apache.org/jira/browse/FLINK-6772 > Project: Flink > Issue Type: Bug > Components: CEP > Affects Versions: 1.3.0 > Reporter: Tzu-Li (Gordon) Tai > Assignee: Kostas Kloudas > Labels: flink-rel-1.3.1-blockers > Fix For: 1.3.1 > > > I've stumbled across an unexepected ordering of the matched state events. > Pattern: > {code} > Pattern<String, ?> pattern = Pattern > .<String>begin("start") > .where(new IterativeCondition<String>() { > @Override > public boolean filter(String s, Context<String> context) throws > Exception { > return s.startsWith("a-"); > } > }).times(4).allowCombinations() > .followedByAny("end") > .where(new IterativeCondition<String>() { > public boolean filter(String s, Context<String> context) throws > Exception { > return s.startsWith("b-"); > } > }).times(3).consecutive(); > {code} > Input event sequence: > a-1, a-2, a-3, a-4, b-1, b-2, b-3 > On b-3 a matched pattern would be triggered. > Now, in the {{Map<String, List<IN>>}} map passed via {{select}} in > {{PatternSelectFunction}}, the list for the "end" state is: > b-3, b-1, b-2. > Based on the timestamp of the events (simply using processing time), the > correct order should be b-1, b-2, b-3. -- This message was sent by Atlassian JIRA (v6.3.15#6346)