[jira] [Updated] (FLINK-15688) Add N-Ary Stream Operator in Flink

["Piotr Nowojski (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-15688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Piotr Nowojski updated FLINK-15688:
-----------------------------------
    Affects Version/s:     (was: 1.11.0)
                       1.10.0

> Add N-Ary Stream Operator in Flink
> ----------------------------------
>
>                 Key: FLINK-15688
>                 URL: https://issues.apache.org/jira/browse/FLINK-15688
>             Project: Flink
>          Issue Type: New Feature
>          Components: API / DataStream, Runtime / Task
>    Affects Versions: 1.10.0
>            Reporter: Piotr Nowojski
>            Assignee: Piotr Nowojski
>            Priority: Major
>
> As described here: https://cwiki.apache.org/confluence/display/FLINK/FLIP-92%3A+Add+N-Ary+Stream+Operator+in+Flink
> The plan is to provide an N-Ary Stream Operator with more or less the following interface:
> {code}
> abstract class StreamOperatorNG<OUT> {
>   Collection<Input<?>> getInputs()
>  
>   // as well as all the other methods of existing StreamOperator
>   // and AbstractStreamOperator:
>   // setup()/open()/close()/snapshot()/restore() ...
> }
>  
> abstract class Input<T> {
>   // for determining whether two inputs are equal
>   private final UUID uuid = UUID.randomUUID();
>  
>   public abstract void processElement(StreamRecord<T> element)
>  
>   public abstract void processWatermark(Watermark watermark)
> }
> {code}



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