MyRowSetListener rowsetlistener = new MyRowSetListener ();
rowset.addRowSetListener (rowsetlistener);
public class MyRowSetListener implements RowSetListener
{
  public void cursorMoved(RowSetEvent event) 
  {
   // do something
  }
  public void rowChanged(RowSetEvent event) 
  {
    // do something
  }
  public void rowSetChanged(RowSetEvent event) 
  {
    // do something
  }
}