String orderBy = objSortColumn != null ? objSortColumn.getColumnName() : null;
String[] orderBy = orderByFromSortColum(objSortColumn);
    public Iterator getCurrentPageRows(int firstRow, int pageSize, ITableColumn objSortColumn,            boolean orderAscending) {        String orderBy = objSortColumn != null ? objSortColumn.getColumnName() : null;        List page = m_phoneContext.loadPhonesByPage(m_groupId, firstRow, pageSize, orderBy,                orderAscending);        return page.iterator();    }