67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
package segment
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import (
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"github.com/RoaringBitmap/roaring"
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"github.com/blevesearch/bleve/index"
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)
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// DocumentFieldValueVisitor defines a callback to be visited for each
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// stored field value. The return value determines if the visitor
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// should keep going. Returning true continues visiting, false stops.
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type DocumentFieldValueVisitor func(field string, typ byte, value []byte, pos []uint64) bool
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type Segment interface {
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Dictionary(field string) TermDictionary
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VisitDocument(num uint64, visitor DocumentFieldValueVisitor) error
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Count() uint64
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DocNumbers([]string) *roaring.Bitmap
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Fields() []string
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}
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type TermDictionary interface {
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PostingsList(term string, except *roaring.Bitmap) PostingsList
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Iterator() DictionaryIterator
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PrefixIterator(prefix string) DictionaryIterator
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RangeIterator(start, end string) DictionaryIterator
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}
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type DictionaryIterator interface {
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Next() (*index.DictEntry, error)
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}
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type PostingsList interface {
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Iterator() PostingsIterator
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Count() uint64
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// NOTE deferred for future work
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// And(other PostingsList) PostingsList
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// Or(other PostingsList) PostingsList
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}
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type PostingsIterator interface {
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Next() Posting
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}
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type Posting interface {
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Number() uint64
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Frequency() uint64
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Norm() float64
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Locations() []Location
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}
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type Location interface {
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Field() string
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Start() uint64
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End() uint64
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Pos() uint64
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ArrayPositions() []uint64
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}
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