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https://issues.apache.org/jira/browse/NIFI-435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14367146#comment-14367146
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Mark Payne commented on NIFI-435:
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hmm it's an interesting idea. Not sure how something like that would play out
though in the API. For example, if we get a FlowFile that has attribute "count"
and that's expected to be a number but has value "hello"... what do we do?
Throw an Exception when you try to get the value of the attribute? or perhaps
provide a "session.isAttributeValid(FlowFile flowFile, String attributeName)"?
I'm not sure how this would work...
> Consider Framework support of ReadsAttributes and WritesAttributes
> ------------------------------------------------------------------
>
> Key: NIFI-435
> URL: https://issues.apache.org/jira/browse/NIFI-435
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 0.1.0
> Reporter: Dan Bress
> Priority: Minor
>
> From Joe:
> I think we should also consider the following:
> - These annotations aren't just for documentation purposes. We could in
> theory evolve to support runtime type checking like validation on flow file
> attributes based on the 'ReadsAttributes' annotation.
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