JTable cell border

Question

Hi there,
I am trying without success to highlight a chosen cell in a JTable.
I have a JTable that sets up a setDefaultRenderer(). The cell renderer that I am using is a custom class that overrides DefaultTableCellRenderer.
I would have assumed that overriding the method thus:
public Component getTableCellRendererComponent(JTable table, Object value,
      boolean isSelected, boolean hasFocus, int row, int column) {
   this.setBorder (BorderFactory.createBevelBorder (EtchedBorder.RAISED));
   // Also tried...
   // setBorder( BorderFactory.createMatteBorder(0, 1, 0, 0, Color.black) );
   // setBorder(selectedBorder);
   // setBorder(BorderFactory.createLineBorder(Color.black));
   // setBorder(BorderFactory.createCompoundBorder(BorderFactory.createLineBorder(Color.black),getBorder()));
   // setBorder(BorderFactory.createLineBorder(Color.black));
   // setBorder(new EmptyBorder(1, 1, 1, 1));
   setBackground(new Color(0xE0C2FC));
}...would put a border around every cell in the table. But no, it does not. The setBackground() colours every cell though and that puzzles me. Does the setBorder() method indicate the border of the cell editor, not of the cell? IIs there another method I have to turn on like the conflict that occurs
when (JTable)
setRowMargin(0);
setShowHorizontalLines(true);stops the horizontal lines are showing.
Thanks in advance,
David

Answer 1

Hi Camickr,
Thanks for your responce. You are correct, the code example did not contain a:
return this;A quick search shows that you have answered very similar questions so many times, that I did not want to burden you (I posted when I saw that you were online) with superfluous code, so I stripped down to the bare core that would demenstrate my question. My appologies, it did not occur to me that you would actually want to compile it.
I have since foung the problem. I orginally based my TableModel and CellRenderer for my program on the Christmas Tree application:
http://java.sun.com/products/jfc/tsc/articles/ChristmasTree/
I relied heavily on the example at:
http://java.sun.com/products/jfc/tsc/articles/ChristmasTree/source/CTTableCellRenderer.java
As it turns out, the code in this example:
    // This override is only appropriate if this will never contain any
    // children AND the Graphics is not clobbered during painting.
    public void paint(Graphics g) {
        ui.update(g, this);
    }should not have been included into my implementation. The example file was using setBorders() all over the place. It never occured to me that they were being ignored.
I am not sure if it is to do with my implementaion of the example code or if the example was faulty to begin with. I am not wasting any more time on it, I have just rem'ed out the affending block and it is all working fine.
I thank you for your time though. Once again you have helped me to solve a problem.
David.