ColumnList<Locator> columns = row.getColumns();
ArrayList<ReRollWork> work = new ArrayList<ReRollWork>();
for (Column<Locator> column : columns) {
Locator locator = column.getName();
work.add(new ReRollWork(locator, gran, new Range(START_MILLIS, STOP_MILLIS)));
}
List<Future<Boolean>> retList = null;
try {
retList = rollupExecutors.invokeAll(work);