// no need to search arrays and tables if agg is not the top left cell
}
SharedValueGroup[] groups = getGroups();
for (int i = 0; i < groups.length; i++) {
SharedValueGroup svg = groups[i];
SharedValueRecordBase svr = svg.getSVR();
if (svr.isFirstCell(row, column)) {
if (svg.isFirstMember(agg)) {
return svr;
}
return null;
}