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https://issues.apache.org/jira/browse/EAGLE-1065?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grainier Perera resolved EAGLE-1065.
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Resolution: Fixed
Fixed with [https://github.com/apache/eagle/pull/1003/]
Now, we can use this to detect non-occurrence of events using the `not` keyword
[1] in the Siddhi query with the alert engine.
[1] [https://siddhi.io/en/v5.1/docs/query-guide/#pattern]
> Support new Siddhi features by upgrading siddhi version to v5.1.4
> -----------------------------------------------------------------
>
> Key: EAGLE-1065
> URL: https://issues.apache.org/jira/browse/EAGLE-1065
> Project: Eagle
> Issue Type: Improvement
> Affects Versions: v0.5.0
> Reporter: Jay Sen
> Assignee: Grainier Perera
> Priority: Major
> Fix For: v0.6.0
>
>
> latest Siddhi has lot of new feature that would be very useful for eagle to
> define new kinds of policies, specially in the area of absence, patterns and
> windows.
> seems like there are also API changes, we may have to do lot of code change
> with this upgrade.
> Although we need to wait for its stable version release :
> https://github.com/wso2/siddhi , I am creating this task to take care of this
> important ( by feature list) and major siddhi upgrade.
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