UDF help

[Tim Robertson]

Hi all,

Is the following a valid UDF please?

When I run it I get the following so I presume not:
hive> select toGoogleCoords(latitude,longitude,1) from
raw_occurrence_record limit 100;
FAILED: Error in semantic analysis:
java.lang.IllegalArgumentException: Error: name expected at the
position 7 of 'struct<>' but '>' is found.

Is it possible to return an Array from a UDF?

Thanks for any pointers,
Tim




public class GoogleTileCoordsUDF extends UDF {

  public IntWritable[] evaluate(Text latitude, Text longitude,
IntWritable zoomLevel) {
    if (latitude == null
                || longitude == null
                || zoomLevel == null) {
      return null;
    }

    double lat = Double.parseDouble(latitude.toString());
    double lng = Double.parseDouble(longitude.toString());

    Point p = GoogleTileUtil.toTileXY(lat, lng, zoomLevel.get());

    if (p==null) {
      return null;
    }

    IntWritable[] xy = new IntWritable[2];
    xy[0]=new IntWritable(p.x);
    xy[1]=new IntWritable(p.y);
    return xy;
  }
}