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https://issues.apache.org/jira/browse/FLINK-2677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen updated FLINK-2677:
--------------------------------
    Description: 
This operator should support:
  - Customizable triggers
  - Eviction on triggers: all / none / custom
  - Discard by time (expiry of state)
  - Event time time window assignment

This set of requirements is effectively a mix between the current trigger/evict 
model and the Cloud Dataflow window definition model.

> Add a general-purpose keyed-window operator
> -------------------------------------------
>
>                 Key: FLINK-2677
>                 URL: https://issues.apache.org/jira/browse/FLINK-2677
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Streaming
>    Affects Versions: 0.10
>            Reporter: Stephan Ewen
>            Assignee: Aljoscha Krettek
>             Fix For: 0.10
>
>
> This operator should support:
>   - Customizable triggers
>   - Eviction on triggers: all / none / custom
>   - Discard by time (expiry of state)
>   - Event time time window assignment
> This set of requirements is effectively a mix between the current 
> trigger/evict model and the Cloud Dataflow window definition model.



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