return sum;
}
@Override
public InterruptibleIterator skvIterator() {
LocalityGroup groups[] = new LocalityGroup[maps.length];
for (int i = 0; i < groups.length; i++) {
if (i < groupFams.length)
groups[i] = new LocalityGroup(maps[i].skvIterator(), groupFams[i], false);
else
groups[i] = new LocalityGroup(maps[i].skvIterator(), null, true);
}
return new LocalityGroupIterator(groups, nonDefaultColumnFamilies);
}