// Divide and round up.
numCols = (args.length - 1 + numRows.get() - 1) / numRows.get();
for (int jj = 0; jj < numCols; ++jj) {
returnOIResolvers.add(new ReturnObjectInspectorResolver());
for (int ii = 0; ii < numRows.get(); ++ii) {
int index = ii * numCols + jj + 1;
if (index < args.length &&
!returnOIResolvers.get(jj).update(args[index])) {
throw new UDFArgumentException(