JTable Cell Renderer Problem

Question

I have been reading a lot about cell renderers, and I realize this is beating a dead horse, and it should be simple, but it is still giving me fits.
I am simply saving data from a JTable to a database. As I process each row, I would like to turn the quantity cell background to green to indicate it has been saved to the database.
So here is the save loop:
               for(int x = startRow; x < endRow; x++)
                    String prodCode = (String)inventoryModel.getValueAt(x, 0);
                    String qty = (String)inventoryModel.getValueAt(x, 6);
                    String ucost = (String)inventoryModel.getValueAt(x, 8);
                    Double levelDbl = Double.valueOf(qty);
                    Double ucostDbl = Double.valueOf(ucost);
                    levels.addLevel(prodCode, levelDbl.doubleValue(), dateString, period, ucostDbl.doubleValue());
                    inventoryTable.setRowSelectionAllowed(false);
                    inventoryTable.setColumnSelectionAllowed(false);
                    inventoryTable.changeSelection(x, 6, false, false);
                    System.out.println("Selected Row: " + inventoryTable.getSelectedRow() + "  Col: " +inventoryTable.getSelectedColumn());
                    int col = 6;
                    TableColumn tableCol = inventoryTable.getColumnModel().getColumn(col);
                    tableCol.setCellRenderer(new InventoryTableCellRenderer());
                    inventoryTable.validate();
               }And here is the renderer:
     public class InventoryTableCellRenderer extends DefaultTableCellRenderer
          public Component getTableCellRendererComponent
               (JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int col)
               System.out.println("Value: " + value + "  isSelected: " + isSelected + "  hasFocus: " + hasFocus);
               Component cell = super.getTableCellRendererComponent
                    (table, value, isSelected, hasFocus, row, col);
               cell.setBackground(Color.green);
               return cell;
     }This does not work, and here is the output from my printf statements:
Selected Row: 0 Col: 6
Selected Row: 1 Col: 6
Selected Row: 2 Col: 6
Value: 5.0 isSelected: false hasFocus: false
Value: 5.0 isSelected: false hasFocus: false
Value: 5.0 isSelected: false hasFocus: false
If anyone has time (yeah right) I could use some help.
Thanx
Steve

Answer 1

Hi, Im not all that skilled with JTable, I know that this changes the colors of all the cells in the JTable though.
Perhaps you can continue from there?
JTable table = new JTable() {
     @Override
     public Component prepareRenderer(TableCellRenderer renderer, int row, int column){
          Component c = super.prepareRenderer(renderer, row, column);
          c.setBackground(Color.GREEN );
          return c;
};