@Override
public Iterable<Cursor> makeCursors(Filter filter, Interval interval, QueryGranularity gran) {
Interval actualInterval = interval;
if (!actualInterval.overlaps(index.dataInterval)) {
return ImmutableList.of();
}
if (actualInterval.getStart().isBefore(index.dataInterval.getStart())) {
actualInterval = actualInterval.withStart(index.dataInterval.getStart());
}
if (actualInterval.getEnd().isAfter(index.dataInterval.getEnd())) {
actualInterval = actualInterval.withEnd(index.dataInterval.getEnd());
}
final Iterable<Cursor> iterable;
if (filter == null) {
iterable = new NoFilterCursorIterable(index, actualInterval, gran);
} else {
Offset offset = new ConciseOffset(filter.goConcise(new MMappedInvertedIndexSelector(index)));
iterable = new CursorIterable(index, actualInterval, gran, offset);
}
return FunctionalIterable.create(iterable).keep(Functions.<Cursor>identity());
}
@Override
public Offset getFilterOffset(Filter filter) {
return new ConciseOffset(filter.goConcise(new MMappedInvertedIndexSelector(index)));
}