Github user yinxusen commented on the pull request:
https://github.com/apache/spark/pull/10085#issuecomment-162761248
@holdenk For your questions, I first tried to modify the interface of
`Bucketizer`, making it to a `JavaModel` other than a `JavaTransfomer`. But I
finally decided not to touch the `Bucketizer`, and added a inner class of
[`QuantileDiscretizerModel`](https://github.com/yinxusen/spark/blob/3a33327122ae94d59403d807255273180528d9a9/python/pyspark/ml/feature.py#L2149)
to get the splits.
But I recommend to test the `getSplits` of `Bucketizer` that generating
from the `QuantileDiscretizer`, since I got a serialization error, and I added
a
[`getJavaSplits`](https://github.com/yinxusen/spark/blob/3a33327122ae94d59403d807255273180528d9a9/mllib/src/main/scala/org/apache/spark/ml/feature/Bucketizer.scala#L64)
to avoide it. JIRA issue
[here](https://issues.apache.org/jira/browse/SPARK-7379).
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