ts when fields (such as the name and address)
    // change.
    cellTable = new CellTable&lt;ContactInfo&gt;(
        ContactDatabase.ContactInfo.KEY_PROVIDER);
    cellTable.setWidth("100%", true);

    // Do not refresh the headers and footers every time the data is updated.
    cellTable.setAutoHeaderRefreshDisabled(true);
    cellTable.setAutoFooterRefreshDisabled(true);

    // Attach a column sort handler to the ListDataProvider to sort the list.
    ListHandler&lt;ContactInfo&gt; sortHandler = new L