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bleve/index/scorch/snapshot_segment.go

65 lines
1.5 KiB
Go

package scorch
import (
"github.com/RoaringBitmap/roaring"
"github.com/blevesearch/bleve/index/scorch/segment"
)
type SegmentDictionarySnapshot struct {
s *SegmentSnapshot
d segment.TermDictionary
}
func (s *SegmentDictionarySnapshot) PostingsList(term string, except *roaring.Bitmap) segment.PostingsList {
return s.d.PostingsList(term, s.s.deleted)
}
func (s *SegmentDictionarySnapshot) Iterator() segment.DictionaryIterator {
return s.d.Iterator()
}
func (s *SegmentDictionarySnapshot) PrefixIterator(prefix string) segment.DictionaryIterator {
return s.d.PrefixIterator(prefix)
}
func (s *SegmentDictionarySnapshot) RangeIterator(start, end string) segment.DictionaryIterator {
return s.d.RangeIterator(start, end)
}
type SegmentSnapshot struct {
id uint64
segment segment.Segment
deleted *roaring.Bitmap
}
func (s *SegmentSnapshot) VisitDocument(num uint64, visitor segment.DocumentFieldValueVisitor) error {
return s.segment.VisitDocument(num, visitor)
}
func (s *SegmentSnapshot) Count() uint64 {
rv := s.segment.Count()
if s.deleted != nil {
rv -= s.deleted.GetCardinality()
}
return rv
}
func (s *SegmentSnapshot) Dictionary(field string) segment.TermDictionary {
return &SegmentDictionarySnapshot{
s: s,
d: s.segment.Dictionary(field),
}
}
func (s *SegmentSnapshot) DocNumbers(docIDs []string) *roaring.Bitmap {
rv := s.segment.DocNumbers(docIDs)
if s.deleted != nil {
rv.AndNot(s.deleted)
}
return rv
}
func (s *SegmentSnapshot) Fields() []string {
return s.segment.Fields()
}