GitHub user bdrillard opened a pull request:

    [SPARK-17770] [CATALYST] making ObjectType public

    ## What changes were proposed in this pull request?
    In order to facilitate the writing of additional Encoders, I proposed 
opening up the ObjectType SQL DataType. This DataType is used extensively in 
the JavaBean Encoder, but would also be useful in writing other custom 
    As mentioned by @marmbrus, it is understood that the Expressions API is 
subject to potential change.
    ## How was this patch tested?
    The change only affects the visibility of the ObjectType class, and the 
existing SQL test suite still runs without error.

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

    $ git pull master

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 #15453
commit 173dceda3da45bb0bd0b578f70ae97143424a727
Author: ALeksander Eskilson <>
Date:   2016-10-12T20:19:53Z

    [SPARK-17770] making ObjectType public


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