private void readList(FieldVector arrowVector, ListColumnVector hiveVector, ListTypeInfo typeInfo) { final int size = arrowVector.getValueCount(); final ArrowBuf offsets = arrowVector.getOffsetBuffer(); final int OFFSET_WIDTH = 4; read(arrowVector.getChildrenFromFields().get(0), hiveVector.child, typeInfo.getListElementTypeInfo()); for (int i = 0; i < size; i++) { if (arrowVector.isNull(i)) { VectorizedBatchUtil.setNullColIsNullValue(hiveVector, i); } else { hiveVector.isNull[i] = false; final int offset = offsets.getInt(i * OFFSET_WIDTH); hiveVector.offsets[i] = offset; hiveVector.lengths[i] = offsets.getInt((i + 1) * OFFSET_WIDTH) - offset; } } }