Found the TypeProtos in the drill-protocol jar. On Sat, Jul 4, 2015 at 12:29 PM, Jim Bates <jba...@maprtech.com> wrote:
> I have working aggregation and simple UDFs. I've been trying to document > and understand each of the options available in a Drill UDF. Understanding > the different FunctionScope's, the ones that are allowed, the ones that are > not. The impact of different cost categories. The different steps needed > to understand handling any of the supported data types and structures in > drill. > > Here are a few of my current road blocks. Any pointers would be greatly > appreciated. > > > 1. I've been trying to understand how to correctly use RepeatedHolders > of whatever type. For this discussion lets start with a > RepeatedBigIntHolder. I'm trying to figure out the best way to create a new > one. I have not figured out where in the existing drill code someone does > this. If I use a RepeatedBigIntHolder as a Workspace object is is null to > start with. I created a new one in the startup section of the udf but the > vector was null. I can find no reference in creating a new BigIntVector. > There is a way to create a BigIntVector and I did find an example of > creating a new VarCharVector but I can't do that using the drill jar files > from 1.0. The org.apache.drill.common.types.TypeProtos and > the org.apache.drill.common.types.TypeProtos.MinorType classes do not > appear to be accessible from the drill jar files. > 2. What is the best way to close out a UDF in the event it generates > an exception? Are there specific steps one should follow to make a clean > exit in a catch block that are beneficial to Drill? > >
