public int getNumFactorys(int row) {
		if ((row < 0) || (row >= rows.size())) {
			return 0;
		}
		return (rows.get(row)).size();
	}
Returns the number of FieldFactorys on any given row.
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/format/FieldFormatModel.java