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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (BEAM-1231) Use well known coder types in Java for WindowedValue, GlobalWindow, and LengthPrefix
Date Wed, 07 Jun 2017 14:54:18 GMT


ASF GitHub Bot commented on BEAM-1231:

GitHub user lukecwik opened a pull request:

    [BEAM-1231] Add missed "kind:bytes" to CloudObjectKinds/CloudObjectTranslators

    Be sure to do all of the following to help us incorporate your contribution
    quickly and easily:
     - [x] Make sure the PR title is formatted like:
       `[BEAM-<Jira issue #>] Description of pull request`
     - [x] Make sure tests pass via `mvn clean verify`.
     - [x] Replace `<Jira issue #>` in the title with the actual Jira issue
           number, if there is one.
     - [x] If this contribution is large, please file an Apache
           [Individual Contributor License Agreement](

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

    $ git pull fn_api

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 #3310


> Use well known coder types in Java for WindowedValue, GlobalWindow, and LengthPrefix
> ------------------------------------------------------------------------------------
>                 Key: BEAM-1231
>                 URL:
>             Project: Beam
>          Issue Type: Bug
>          Components: beam-model-fn-api
>            Reporter: Luke Cwik
>            Assignee: Luke Cwik
>            Priority: Minor
>             Fix For: Not applicable
> Add support for using kind for well known coder types in Apache Beam for Java
> The following specific cloud object representations for the following types should exist:
> kind:pair (TupleCoder with two components)
> kind:stream (IterableCoder with a single component)
> kind:global_window (GlobalWindowCoder)
> kind:length_prefix (A new type of coder which always encodes the length of the value
type as a prefix, has a single component)
> kind:windowed_value (A wrapper coder with two components (value coder and window coder))
> These changes are towards having a common binary representation for certain well known
coders across multiple languages.

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