[jira] [Created] (FLINK-13881) CEP within method should applied in every independent pattern

["YufeiLiu (Jira)" <ji...@apache.org>]

YufeiLiu created FLINK-13881:
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             Summary: CEP within method should applied in every independent pattern
                 Key: FLINK-13881
                 URL: https://issues.apache.org/jira/browse/FLINK-13881
             Project: Flink
          Issue Type: Improvement
          Components: Library / CEP
    Affects Versions: 1.9.0
            Reporter: YufeiLiu


When I write a Pattern like this: 
{code:java}
Pattern.begin("start").where()
  .followBy("middle0").where().within(Time.second(1))
  .followBy("middle1").where().within(Time.second(2))
  .followBy("middle2").where().within(Time.second(3))
{code}
the actual within time is the smallest: 1 second.

I created a TimeCondition extends IterativeCondition, and I can get timestamp of current event and previous computation state, then I compare them in condition filter. Also make some change in NFACompiler, transform within as StateTransition rather than a gobal property "windowTime" of NFA.
It could work, but I dont know should I change the implementation of within or create another syntax. 
[~dawidwys] Is this meaningful? 



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