docs: @Override
  	public Object getValueAt(final int rowIndex, final int columnIndex)
  	{
  		final KeyValuePair<K, V> row = getData().get(rowIndex);
  		switch (columnIndex)
  		{
  			case 0 :
  				return row.getKey();
  			case 1 :
  				return row.getValue();
  			default :
  				return null;
  		}
  	}