Wrong behaviours with TableCellRenderer

Question

Hi.
I implemented my tablecellrenderer for dates. The problem is that the values of the column I rendered are not visually selected when I click on them.
Moreover:
when I click on a cell, sometimes it changes its content, according to the row I was selecting before.
if three rows have the same date value, all three are selected.
I tried using setOpaque (true) but this selected all the rows in that column.
Here is my renderer..thanks for any little help
public class DateTableCellRenderer extends JLabel implements TableCellRenderer {
Timestamp curDate;
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int rowIndex, int vColIndex) {
if(value!=null){
if (value instanceof Timestamp) {
curDate = (Timestamp) value;
SimpleDateFormat a = new SimpleDateFormat("dd/MM/yyyy", Locale.ITALY);
String text = a.format(curDate);
this.setText(text);
if (isSelected) {
this.setOpaque(true);
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
} else {
this.setOpaque(false);
setForeground(table.getForeground());
setBackground(table.getBackground());
return this;
}

Answer 1

You're right. I forgot using the code tags to format my class. Here is my situation:
I have a dinamic JTable to which I added a TableSorter. In the model I added object like BigDecimal, Strings and Timestamp and I created a TableCellRenderer for each type I can have inside the table. The wrong behaviours are those described in the previous post.
Any help?
Thanks camickr, but I think that the link you gave me is wrong