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https://issues.apache.org/jira/browse/NIFI-2794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard updated NIFI-2794:
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Attachment: image.png
The idea was to cover this kind of situation:
!image.png!
Example: I have a processor A going through a list of IDs and generating one
FlowFile per ID. I have a processor B fetching data from one source for the
given ID and the processor C does the same from another source. The processor D
could use this method to get FlowFiles from both B and C for the same ID and
join the data into one flow file.
I do realize now that this would be covered by the ongoing work with NIFI-2590,
NIFI-1926, NIFI-2735.
There are more general patterns to cover here and this, without any doubt, can
be achieved in a more elegant/general way.
> Expose a getOneFromEachConnection method in ProcessSession
> ----------------------------------------------------------
>
> Key: NIFI-2794
> URL: https://issues.apache.org/jira/browse/NIFI-2794
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.0.0
> Reporter: Pierre Villard
> Assignee: Pierre Villard
> Priority: Minor
> Attachments: image.png
>
>
> In case a processor has multiple incoming connections, it could be
> interesting to expose a method allowing users to get exactly one flow file
> per incoming connection in a row.
> That could unlock opportunities such as performing join operations on
> datasets.
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