public GroupTotals(int headerCellColumn) 
{
          
            this.columnNumber = headerCellColumn;
            this.firstRowOfCurrentSet = 0;
}

 public String getTotalLabelClass() 
{
            return totalLabelClass;
}

 public String getTotalValueClass() 
{
            return totalValueClass;
}

 public  void printTotals(int currentRow,
    StringBuffer out) 
{
            // For each column, output:
            List headerCells = tableModel.getHeaderCellList();
            if (firstRowOfCurrentSet <  currentRow) // If there is more than one row, show a total
            {
                out.append(totalsRowOpen);
                for (Iterator iterator = headerCells.iterator(); iterator.hasNext();)
                {
                    HeaderCell headerCell = (HeaderCell) iterator.next();
                    if (columnNumber == headerCell.getColumnNumber())
                    {
                        // a totals label if it is the column for the current group
                        String currentLabel = getCellValue(columnNumber, firstRowOfCurrentSet);
                        out.append(getTotalsTdOpen(headerCell, getTotalLabelClass() + " group-" + (columnNumber + 1)));
                        out.append(getTotalRowLabel(currentLabel));
                    }
                    else if (headerCell.isTotaled())
                    {
                        // a total if the column should be totaled
                        Object total = getTotalForColumn(headerCell.getColumnNumber(),
                                firstRowOfCurrentSet, currentRow);
                        out.append(getTotalsTdOpen(headerCell, getTotalValueClass() + " group-" + (columnNumber + 1)));
                        out.append(formatTotal(headerCell, total));
                    }
                    else
                    {
                        // blank, if it is not a totals column
                        String style = "group-" + (columnNumber + 1);
                        if (headerCell.getColumnNumber() <  innermostGroup)
                        {
                            style += " " + getTotalLabelClass() + " ";
                        }
                        out.append(getTotalsTdOpen(headerCell, style));
                    }
                    out.append(TagConstants.TAG_OPENCLOSING + TagConstants.TAGNAME_COLUMN + TagConstants.TAG_CLOSE);
                }
                out.append("\n< /tr >\n");
            }
}

 public  void setStartRow(int i) 
{
            firstRowOfCurrentSet = i;
}

 public  void setTotalLabelClass(String totalLabelClass) 
{
            this.totalLabelClass = totalLabelClass;
}

 public  void setTotalValueClass(String totalValueClass) 
{
            this.totalValueClass = totalValueClass;
}

 public  void setTotalsRowOpen(String totalsRowOpen) 
{
            this.totalsRowOpen = totalsRowOpen;
}