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From "Bowen Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-8560) Access to the current key in ProcessFunction#OnTimerContext after keyBy()
Date Wed, 14 Feb 2018 08:14:01 GMT

     [ https://issues.apache.org/jira/browse/FLINK-8560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bowen Li updated FLINK-8560:
----------------------------
    Affects Version/s: 1.4.0

> Access to the current key in ProcessFunction#OnTimerContext after keyBy()
> -------------------------------------------------------------------------
>
>                 Key: FLINK-8560
>                 URL: https://issues.apache.org/jira/browse/FLINK-8560
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataStream API
>    Affects Versions: 1.4.0
>            Reporter: J├╝rgen Thomann
>            Assignee: Bowen Li
>            Priority: Major
>             Fix For: 1.5.0
>
>
> Currently it is required to store the key of a keyBy() in the processElement method to
have access to it in the OnTimerContext.
> This is not so good as you have to check in the processElement method for every element
if the key is already stored and set it if it's not already set.
> A possible solution would adding OnTimerContext#getCurrentKey() or a similar method.
Maybe having it in the open() method could maybe work as well.
> http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Getting-Key-from-keyBy-in-ProcessFunction-tt18126.html



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