private VectorizedRowBatch makeBatch() { VectorizedRowBatch batch = new VectorizedRowBatch(3); LongColumnVector lv = new LongColumnVector(); DoubleColumnVector dv = new DoubleColumnVector(); BytesColumnVector bv = new BytesColumnVector(); setSampleStringCol(bv); batch.cols[0] = lv; batch.cols[1] = dv; batch.cols[2] = bv; addRandomNulls(batch); return batch; }