[jira] [Commented] (FLINK-5809) Add registerNextWatermarkCallback() to TimerService

2019-05-23 Thread Aljoscha Krettek (JIRA)


[ 
https://issues.apache.org/jira/browse/FLINK-5809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16846600#comment-16846600
 ] 

Aljoscha Krettek commented on FLINK-5809:
-

You're right, [~yanghua]!

> Add registerNextWatermarkCallback() to TimerService
> ---
>
> Key: FLINK-5809
> URL: https://issues.apache.org/jira/browse/FLINK-5809
> Project: Flink
>  Issue Type: Improvement
>  Components: API / DataStream
>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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[jira] [Commented] (FLINK-5809) Add registerNextWatermarkCallback() to TimerService

2019-05-22 Thread vinoyang (JIRA)


[ 
https://issues.apache.org/jira/browse/FLINK-5809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16846371#comment-16846371
 ] 

vinoyang commented on FLINK-5809:
-

It seems the {{registerEventTimeTimer}} does not exist in the current code 
base. So maybe we can close this issue now. cc [~aljoscha]

> Add registerNextWatermarkCallback() to TimerService
> ---
>
> Key: FLINK-5809
> URL: https://issues.apache.org/jira/browse/FLINK-5809
> Project: Flink
>  Issue Type: Improvement
>  Components: API / DataStream
>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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