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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2723) CopyableValue method to copy into new instance
Date Tue, 22 Sep 2015 16:14:04 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14902885#comment-14902885

ASF GitHub Bot commented on FLINK-2723:

GitHub user greghogan opened a pull request:


    [FLINK-2723] CopyableValue method to copy into new instance


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

    $ git pull https://github.com/greghogan/flink 2723_copyablevalue_method_to_copy_into_new_instance

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 #1169
commit 114c4960518f58e724bad13daae76c3f513d27b0
Author: Greg Hogan <code@greghogan.com>
Date:   2015-09-21T19:14:09Z

    [FLINK-2723] CopyableValue method to copy into new instance


> CopyableValue method to copy into new instance
> ----------------------------------------------
>                 Key: FLINK-2723
>                 URL: https://issues.apache.org/jira/browse/FLINK-2723
>             Project: Flink
>          Issue Type: New Feature
>          Components: Core
>    Affects Versions: master
>            Reporter: Greg Hogan
>            Assignee: Greg Hogan
>            Priority: Minor
> Provide a method for generic user-defined functions to clone a {{CopyableValue}}. A common
use case is a {{GroupReduceFunction}} that needs to store multiple objects. With object reuse
we need to make a deep copy and with type erasure we cannot call new.

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