@Override
    public Object getValueAt(int row, int col)
    {
        {
            StockItem s = si.get(row);
            switch (col)
            {
                case 0:
                    return s.getID();
                case 1:
                    return s.getStockQuantity();
                case 2:
                    return s.getLength();
                case 3:
                    return s.getChargeNo();
                case 4:
                    return s.getSleeveID();
                case 5:
                    return s.getCoilTypeID();

            }
            return null;
        }
    }