[
https://issues.apache.org/jira/browse/FLINK-2983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14993667#comment-14993667
]
Stephan Ewen commented on FLINK-2983:
-------------------------------------
I think this is a good way, to wait for some more evidence for such patterns.
Saves us from overloading the APIs/system.
> Add StateLoader as an alternative to default KvState
> -----------------------------------------------------
>
> Key: FLINK-2983
> URL: https://issues.apache.org/jira/browse/FLINK-2983
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Reporter: Gyula Fora
>
> To create key-value states the user currently needs to specify a default
> state value that will be returned on first access. Even though this support
> nulls for implementing the initialization logic this is not a clean solution.
> I propose to allow the user to pass a StateLoader instance which would load
> the default state:
> interface StateLoader<I, K,S>{
> S loadState(K key, I currentInput);
> }
> The default value implementation could also use the state loader logic where
> the stateloader would just return a copy of the given value on the loadState
> call.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
