public void refresh()
    {
        myCases = myLemma.getDoneDescriptions();
        /*
         * Let the table know that data has changed.
         */
        ((AbstractTableModel)myTable.getModel()).fireTableDataChanged();
        
        if(myCases.size() == 0)
        {
            myDone.setEnabled(false);
            myClearAll.setEnabled(false);
        }
        else
        {
            myDone.setEnabled(true);
            myClearAll.setEnabled(true);
        }
        repaint();
    }