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https://issues.apache.org/jira/browse/FLINK-4844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15582774#comment-15582774
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ASF GitHub Bot commented on FLINK-4844:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/2648#discussion_r83664806
--- Diff:
flink-core/src/main/java/org/apache/flink/api/common/functions/RuntimeContext.java
---
@@ -48,7 +43,7 @@
* {@link AbstractRichFunction#getRuntimeContext()}.
*/
@Public
-public interface RuntimeContext {
+public interface RuntimeContext extends KeyedStateStore {
--- End diff --
I think it would be better to not have `RuntimeContext` be a
`KeyedStateStore`. In the not-so-far future `RuntimeContext` will probably
provide a `KeyedStateStore` or at least use one internally to implement the
state methods. Properly separating the two now seems prudent.
> Partitionable Raw Keyed/Operator State
> --------------------------------------
>
> Key: FLINK-4844
> URL: https://issues.apache.org/jira/browse/FLINK-4844
> Project: Flink
> Issue Type: New Feature
> Reporter: Stefan Richter
> Assignee: Stefan Richter
>
> Partitionable operator and keyed state are currently only available by using
> backends. However, the serialization code for many operators is build around
> reading/writing their state to a stream for checkpointing. We want to provide
> partitionable states also through streams, so that migrating existing
> operators becomes more easy.
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