public Object getValueAt(int rowIndex, int columnIndex) {
        ProductBean product = (ProductBean) data.get(rowIndex);
        switch (columnIndex) {
            case 0:
                return product.getPartNumber();
            case 1:
                return product.getDescription();
            case 2:
                return product.getLocation();
            case 3:
                return String.valueOf(product.getQuantity());
            case 4:
                return String.valueOf(product.getPcp());
            case 5:
                return product.getMiscelleneous();
            case 6:
                return product.getOtherNumber();
            case 7:
                return Utility.formatDouble(product.getUnitPrice());
        }
        return null;
    }