How to use

setAscending

method

in

org.jfree.ui.SortableTableModel

/**
 * When the user releases the mouse button, we attempt to sort the table.
 *
 * @param e  the mouse event.
 */
public void mouseReleased(final MouseEvent e) {
  final JTableHeader header = (JTableHeader) e.getComponent();
  if (header.getResizingColumn() == null) {  // resizing takes precedence over sorting
    if (this.sortColumnIndex != -1) {
      final SortableTableModel model = (SortableTableModel) header.getTable().getModel();
      final boolean ascending = !model.isAscending();
      model.setAscending(ascending);
      model.sortByColumn(this.sortColumnIndex, ascending);
      this.renderer.setPressedColumn(-1);       // clear
      header.repaint();
    }
  }
}

/**
 * When the user releases the mouse button, we attempt to sort the table.
 *
 * @param e  the mouse event.
 */
public void mouseReleased(final MouseEvent e) {
  final JTableHeader header = (JTableHeader) e.getComponent();
  if (header.getResizingColumn() == null) {  // resizing takes precedence over sorting
    if (this.sortColumnIndex != -1) {
      final SortableTableModel model = (SortableTableModel) header.getTable().getModel();
      final boolean ascending = !model.isAscending();
      model.setAscending(ascending);
      model.sortByColumn(this.sortColumnIndex, ascending);
      this.renderer.setPressedColumn(-1);       // clear
      header.repaint();
    }
  }
}

/**
 * When the user releases the mouse button, we attempt to sort the table.
 *
 * @param e  the mouse event.
 */
public void mouseReleased(final MouseEvent e) {
  final JTableHeader header = (JTableHeader) e.getComponent();
  if (header.getResizingColumn() == null) {  // resizing takes precedence over sorting
    if (this.sortColumnIndex != -1) {
      final SortableTableModel model = (SortableTableModel) header.getTable().getModel();
      final boolean ascending = !model.isAscending();
      model.setAscending(ascending);
      model.sortByColumn(this.sortColumnIndex, ascending);
      this.renderer.setPressedColumn(-1);       // clear
      header.repaint();
    }
  }
}