Multiple cell renderers for a column in a JTable?

Question

Let\'s say I have the following JTable, which is displayed as soon as a button is pressed:

      | Name
------+------------
True  | Hello World
False | Foo B         


        

Answer 1

Store Boolean.TRUE for the true values. Then store an empty String for the false values. You will then need to:

a) override the getCellRenderer(...) method to return the appropriate renderer for the data found in the cell.

b) make the cells containing the empty string non-editable:

JTable table = new JTable(data, columnNames)
{
    public TableCellRenderer getCellRenderer(int row, int column)
    {
        if (column == 0)
        {
            Class cellClass = getValueAt(row, column).getClass();
            return getDefaultRenderer( cellClass );
        }

        return super.getCellRenderer(row, column);
    }

    public boolean isCellEditable(int row, int column)
    {
        Class cellClass = getValueAt(row, column).getClass();

        if (column == 0 && cellClass instanceof Boolean)
        {
            return true;
        }
        else
        {
            return false;
        }

        return super.isCellEditable(row, column);
    }

};

Using this approach there is no need for custom renderers or editors.

Answer 2

Have getTableCellRendererComponent return a blank JLabel if the initial value was false.