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https://issues.apache.org/jira/browse/FLINK-8364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16392961#comment-16392961
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ASF GitHub Bot commented on FLINK-8364:
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Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/5356
I am wondering whether this discussion is a bit confused.
All state facing the user in the APIs already has the behavior that there
is no `null`, but only empty iterators. That's because all state is wrapped
into a `UserFacingListState` in the `DefaultKeyedStateStore`.
So, is this a non-issue, actually? Something that may only affect test
implementations of `ListState`
> Add iterator() to ListState which returns empty iterator when it has no value
> -----------------------------------------------------------------------------
>
> Key: FLINK-8364
> URL: https://issues.apache.org/jira/browse/FLINK-8364
> Project: Flink
> Issue Type: Improvement
> Components: State Backends, Checkpointing
> Affects Versions: 1.4.0
> Reporter: Bowen Li
> Assignee: Bowen Li
> Priority: Major
> Fix For: 1.5.0
>
>
> Add iterator() to ListState which returns empty iterator when it has no value
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