public Pair<SortedSet<Comparable>, Boolean> getValuesAndIndicator() {
if (keys.length > 0
&& keys[keys.length - 1] == RolapUtil.sqlNullValue)
{
return (Pair) Pair.of(
new ArraySortedSet(keys, 0, keys.length - 1),
Boolean.TRUE);
} else {
return (Pair) Pair.of(
new ArraySortedSet(keys),
Boolean.FALSE);
}
}