Hi.
I'm trying to retrieve field values in my own LeafCollector (Lucene 8.11.1).
But I didn't find good tutorial how to do it.
So, I get SortedSetDoc from LeafReader, then Lucene calls my implementation of
LeafCollector.collect() method, and I try to get values from SortedSetDoc
inside my implementation of LeafCollector.collect() method.
What should I call for move SortedSetDoc's pointer to the required
document('doc' parameter of LeafCollector.collect(int doc)) ? advance(doc) or
advanceExact(doc) ?
I'm using SortedSetDoc.advanceExact() and it works good.
But when I'm trying to call BinaryDocValues.advanceExact() for other field, it
always returns true (see Lucene80DocValuesProducer.java:685), even in case doc
>= maxDoc.
If I'm using advance(doc) and checking that "advance(doc)==doc" (against case
of "document number is greater to target") - it works good.
But SortedSetDoc.advance(doc) always returns 'doc+1', not a 'doc'
(IndexedDISI.java:385).
--
Alexander Buloichik
