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https://issues.apache.org/jira/browse/FLINK-3933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15290879#comment-15290879
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ASF GitHub Bot commented on FLINK-3933:
---------------------------------------

GitHub user StephanEwen opened a pull request:

    https://github.com/apache/flink/pull/2010

    [FLINK-3933] [streaming API] Add AbstractDeserializationSchema

    This PR adds an `AbstractDeserializationSchema` that handles the produced 
type extraction automatically from the generic types via the TypeExtractor 
(reflection)
    
    Also adds test and documentation, references the new 
`AbstractDeserializationSchema` in the docs of the `DeserializationSchema`.

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

    $ git pull https://github.com/StephanEwen/incubator-flink abstract_schema

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

    https://github.com/apache/flink/pull/2010.patch

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

    This closes #2010
    
----
commit 24e9f833a4ce4004b861c07772aa842e4169577b
Author: Stephan Ewen <se...@apache.org>
Date:   2016-05-19T10:37:05Z

    [FLINK-3933] [streaming API] Add AbstractDeserializationSchema that handles 
produced type extraction.
    
    The AbstractDeserializationSchema creates the produced type information 
automatically from the
    generic parameters.

----


> Add an auto-type-extracting DeserializationSchema
> -------------------------------------------------
>
>                 Key: FLINK-3933
>                 URL: https://issues.apache.org/jira/browse/FLINK-3933
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>    Affects Versions: 1.0.0
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>             Fix For: 1.1.0
>
>
> When creating a {{DeserializationSchema}}, people need to manually worry 
> about how to provide the produced type's {{TypeInformation}}.
> We should add a base utility {{AbstractDeserializationSchema}} that provides 
> that automatically via the type extractor.



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