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https://issues.apache.org/jira/browse/APEXCORE-241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pramod Immaneni closed APEXCORE-241.
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> Create DelayOperator interface
> ------------------------------
>
>                 Key: APEXCORE-241
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-241
>             Project: Apache Apex Core
>          Issue Type: Sub-task
>            Reporter: David Yan
>            Assignee: David Yan
>
> The DelayOperator will have a method firstWindow(long windowId).  
> Implementations of this interface is supposed to emit tuples for the first 
> window of the execution of the operator (either the first window of the 
> execution of the application or the first window after recovery).



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