🚀 go-pugleaf

Why is the JTableHeader not editable. I want to create an editable
JTableHeader but I cannot understand why if I use the
setHeaderRenderer method the header is not editable.
I have seen (http://www.esus.com/javaindex/j2se/jdk1.2/javaxswing/editableatomiccontrols/jtable/jtableeditableheader.html)
an example of editable JTableHeader. But why isn't enough the follow
code

....
TableColumnModel colModel = jTable1.getColumnModel();
for (int col = 0; col < jTable1.getColumnCount(); col++)
{
colModel.getColumn(col).setHeaderRenderer(new HeaderFilterRenderer());
}
.....
class HeaderFilterRenderer implements TableCellRenderer
{

public Component getTableCellRendererComponent(JTable table, Object
value,
boolean isSelected, boolean hasFocus, int rowIndex, int vColIndex) 
{
return new JTextField ();
}

}