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From "Bowen Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-5809) Add registerNextWatermarkCallback() to TimerService
Date Thu, 01 Mar 2018 07:40:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-5809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bowen Li updated FLINK-5809:
----------------------------
    Issue Type: Improvement  (was: Bug)

> Add registerNextWatermarkCallback() to TimerService
> ---------------------------------------------------
>
>                 Key: FLINK-5809
>                 URL: https://issues.apache.org/jira/browse/FLINK-5809
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataStream API
>            Reporter: Aljoscha Krettek
>            Priority: Major
>
> This new method is similar to {{registerEventTimeTimer()}} but instead of specifying
a certain time where the timer should fire this will simply fire whenever a new watermark
arrives.
> This is, for example, useful when you want to buffer elements for sorting by event time
and always want to emit as soon as the operator receives a watermark.



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