[jira] [Commented] (FLINK-5023) Add get() method in State interface

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-5023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15827234#comment-15827234 ] 

ASF GitHub Bot commented on FLINK-5023:
---------------------------------------

Github user shixiaogang commented on the issue:

    https://github.com/apache/flink/pull/2768
  
    Despite the changes in the state descriptors, the Flink jobs can restore from old versioned snapshots now.


> Add get() method in State interface
> -----------------------------------
>
>                 Key: FLINK-5023
>                 URL: https://issues.apache.org/jira/browse/FLINK-5023
>             Project: Flink
>          Issue Type: Improvement
>          Components: State Backends, Checkpointing
>            Reporter: Xiaogang Shi
>            Assignee: Xiaogang Shi
>
> Currently, the only method provided by the State interface is `clear()`. I think we should provide another method called `get()` to return the structured value (e.g., value, list, or map) under the current key. 
> In fact, the functionality of `get()` has already been implemented in all types of states: e.g., `value()` in ValueState and `get()` in ListState. The modification to the interface can better abstract these states.



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