@Override
  public void switchColumnHeader(ColumnHeaderDisplay columnHeaderDisplay) {
    for (Enumeration e = _table.getColumnModel().getColumns(); e.hasMoreElements(); ) {
      ExtTableColumn col = (ExtTableColumn) e.nextElement();

      if (ColumnHeaderDisplay.COLUMN_NAME == columnHeaderDisplay) {
        col.setHeaderValue(col.getColumnDisplayDefinition().getColumnName());
      } else if (ColumnHeaderDisplay.COLUMN_LABEL == columnHeaderDisplay) {
        col.setHeaderValue(col.getColumnDisplayDefinition().getLabel());
      }
    }

    _table.getTableHeader().repaint();
  }
    private TableColumnModel createColumnModel(ColumnDisplayDefinition[] colDefs) {
      // _colDefs = hdgs;
      TableColumnModel cm = new DefaultTableColumnModel();

      _rntc = new RowNumberTableColumn();

      for (int i = 0; i < colDefs.length; ++i) {
        ColumnDisplayDefinition colDef = colDefs[i];

        int colWidth;

        if (null == colDef.getAbsoluteWidth()) {
          colWidth = colDef.getDisplayWidth() * _multiplier;
          if (colWidth > MAX_COLUMN_WIDTH * _multiplier) {
            colWidth = MAX_COLUMN_WIDTH * _multiplier;
          } else if (colWidth < MIN_COLUMN_WIDTH * _multiplier) {
            colWidth = MIN_COLUMN_WIDTH * _multiplier;
          }
        } else {
          colWidth = colDef.getAbsoluteWidth();
        }

        ExtTableColumn col =
            new ExtTableColumn(
                i, colWidth, CellComponentFactory.getTableCellRenderer(colDefs[i]), null);

        String headerValue = colDef.getColumnHeading();
        col.setHeaderValue(headerValue);
        col.setColumnDisplayDefinition(colDef);
        cm.addColumn(col);
      }

      return cm;
    }