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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7475) support update() in ListState
Date Tue, 07 Nov 2017 00:49:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16241262#comment-16241262

ASF GitHub Bot commented on FLINK-7475:

GitHub user bowenli86 opened a pull request:


    [FLINK-7475] [core][state backend] support update() in ListState

    ## What is the purpose of the change
    If users want to update the list, they have to do two steps: 
    for (Element e : myList) { 
    We should enable users to do such actions by providing an API `listState.update(myNewList)`
    ## Brief change log
    - Added `update()` API to `ListState`
    - Added and updated unit/IT tests
    - Updated Flink doc
    `update()` can actually be an API in `AppendingState`, or at least in `MapState`. We can
consider it later.
    ## Verifying this change
    This change added tests and can be verified in `testListStateAddUpdateAndGet()`
    ## Does this pull request potentially affect one of the following parts:
      - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes)
    ## Documentation
      - Does this pull request introduce a new feature? (yes)
      - If yes, how is the feature documented? (docs and JavaDocs)

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/bowenli86/flink FLINK-7475

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #4963
commit 6ee905066137bafe2619be24446a7ed3439ec65d
Author: Bowen Li <bowenli86@gmail.com>
Date:   2017-10-27T08:21:20Z

    [FLINK-7475] add ListState#update() API and implementations to Flink

commit 390b5656988505c69367118ed295dd83cb7ae784
Author: Bowen Li <bowenli86@gmail.com>
Date:   2017-10-27T08:59:08Z

    add IT tests

commit e63baa1fae56681d3760ba833b5da8c0cfbcae1a
Author: Bowen Li <bowenli86@gmail.com>
Date:   2017-10-27T09:04:04Z

    update doc

commit 03be4982a490df8d4d8da805916c9a29c9174ebd
Author: Bowen Li <bowenli86@gmail.com>
Date:   2017-10-27T23:17:50Z

    format comments

commit 75dcdc134f705a3a997d65d6c547fd3a35d19edd
Author: Bowen Li <bowenli86@gmail.com>
Date:   2017-10-27T23:23:55Z

    checkout empty list

commit 18a952c9978b24287c01aa865d8f28beb4fe31ec
Author: Bowen Li <bowenli86@gmail.com>
Date:   2017-10-27T23:42:19Z

    format code

commit c4daba92b04d3789aeb7f72419b7fdd36e11177b
Author: Bowen Li <bowenli86@gmail.com>
Date:   2017-10-28T05:12:18Z

    add update() to FlinkKafkaConsumerBaseTest


> support update() in ListState
> -----------------------------
>                 Key: FLINK-7475
>                 URL: https://issues.apache.org/jira/browse/FLINK-7475
>             Project: Flink
>          Issue Type: Improvement
>          Components: Core, DataStream API, State Backends, Checkpointing
>            Reporter: yf
>            Assignee: Bowen Li
>             Fix For: 1.5.0
> If I want to update the list. 
> I have to do two steps: 
> listState.clear() 
> for (Element e : myList) { 
>     listState.add(e); 
> } 
> Why not I update the state by: 
> listState.update(myList) ?

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