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https://issues.apache.org/jira/browse/FLINK-8293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17334213#comment-17334213
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Flink Jira Bot commented on FLINK-8293:
---------------------------------------
This issue was marked "stale-assigned" and has not received an update in 7
days. It is now automatically unassigned. If you are still working on it, you
can assign it to yourself again. Please also give an update about the status of
the work.
> Rework Flink's type and serialization docs
> ------------------------------------------
>
> Key: FLINK-8293
> URL: https://issues.apache.org/jira/browse/FLINK-8293
> Project: Flink
> Issue Type: Improvement
> Components: API / Type Serialization System, Documentation
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: stale-assigned
>
> The documentation about Flink's type and serialization system hasn't been
> updated for a while and there are a lot of users (especially beginners) that
> have problems with defining types for inputs, functions, state etc. We should
> rework the documentation a little bit to solve things like:
> Type related things:
> {code}
> "Document all data types.
> What TypeInfo is available? What are the limitation? Encourage TypeHints?
> returns()? Link to new Types class. How to declare a valid case class in
> Scala.
> Look into log if type is no POJO type (e.g. when using org.json4s)
> ResultTypeQueryable documentation
> Case classes and Tuples do not support null!
> Subtypes of POJOs are handled during runtime or via cache and registerType()
> Explain all methods in ExecutionConfig.
> Compatibility guarantees.
> Pojos must have a void setter. Why are we so strict?
> Update docs in api_concepts about types (Avro is not used for POJOs)!"
> {code}
> Serialization related things:
> {code}
> "Serialization overview. Big picture (what is serialized, how, why, where,
> when?).
> When/why should I register a type or a subtype -- what does that do?
> Link to ""Streaming/Working with State/Custom Serialization for Managed
> State""."
> {code}
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