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Drill >> mail # dev >> Extending the expression tree materializer


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Re: Extending the expression tree materializer
VectorAccessible worked great; thanks!
On Wed, Oct 23, 2013 at 2:51 PM, Jacques Nadeau <[EMAIL PROTECTED]> wrote:

> Steven actually added an interface for this purpose in his latest DRILL-230
> patch called VectorAccessible.  If you want to base on top of his branch,
> you should probably be good to go.
>
>
> On Wed, Oct 23, 2013 at 2:35 PM, Ben Becker <[EMAIL PROTECTED]> wrote:
>
> > The expression tree materializer currently works by looking up a
> SchemaPath
> > in a RecordBatch to get the corresponding ValueVector.
> >
> > I'd like to allow for similar functionality, but substituting the
> > RecordBatch with a RecordBatchLoader.  Note that both classes already
> > implement the required getValueVectorId(SchemaPath) method.
> >
> > It seems there are several ways to make this work (generics, additional
> > interface, additional materializer, etc.), but the most appropriate
> > solution is not obvious to me.  What's the best way to go about this?
> >
> > Thanks,
> > Ben
> >
>