searcher

package
v0.1.7 Latest Latest
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 Go to latest Published: Jul 13, 2021 License: Apache-2.0 Imports: 16 Imported by: 2

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var DisjunctionHeapTakeover = 10

DisjunctionHeapTakeover is a compile time setting that applications can adjust to control when the DisjunctionSearcher will switch from a simple slice implementation to a heap implementation.

View Source 
var DisjunctionMaxClauseCount = 0

DisjunctionMaxClauseCount is a compile time setting that applications can adjust to non-zero value to cause the DisjunctionSearcher to return an error instead of exeucting searches when the size exceeds this value.

View Source 
var GeoBitsShift1 = geo.GeoBits << 1
View Source 
var GeoBitsShift1Minus1 = GeoBitsShift1 - 1
View Source 
var MaxFuzziness = 2

Functions

func ComputeGeoRange 

func ComputeGeoRange(term uint64, shift uint,
	sminLon, sminLat, smaxLon, smaxLat float64, checkBoundaries bool,
	indexReader search.Reader, field string, precisionStep uint) (
	onBoundary, notOnBoundary [][]byte, err error)

func NewConjunctionSearcher 

func NewConjunctionSearcher(indexReader search.Reader,
	qsearchers []search.Searcher, scorer search.CompositeScorer, options search.SearcherOptions) (
	search.Searcher, error)

func NewDisjunctionSearcher 

func NewDisjunctionSearcher(indexReader search.Reader,
	qsearchers []search.Searcher, min int, scorer search.CompositeScorer, options search.SearcherOptions) (
	search.Searcher, error)

func NewFuzzySearcher 

func NewFuzzySearcher(indexReader search.Reader, term string,
	prefix, fuzziness int, field string, boost float64, scorer search.Scorer,
	compScorer search.CompositeScorer, options search.SearcherOptions) (search.Searcher, error)

func NewGeoBoundedPolygonSearcher 

func NewGeoBoundedPolygonSearcher(indexReader search.Reader,
	polygon []geo.Point, field string, boost float64, scorer search.Scorer,
	compScorer search.CompositeScorer, options search.SearcherOptions,
	precisionStep uint) (search.Searcher, error)

func NewGeoBoundingBoxSearcher 

func NewGeoBoundingBoxSearcher(indexReader search.Reader, minLon, minLat,
	maxLon, maxLat float64, field string, boost float64, scorer search.Scorer,
	compScorer search.CompositeScorer, options search.SearcherOptions,
	checkBoundaries bool, precisionStep uint) (
	search.Searcher, error)

func NewGeoPointDistanceSearcher 

func NewGeoPointDistanceSearcher(indexReader search.Reader, centerLon,
	centerLat, dist float64, field string, boost float64, scorer search.Scorer,
	compScorer search.CompositeScorer, options search.SearcherOptions,
	precisionStep uint) (search.Searcher, error)

func NewMultiTermSearcher 

func NewMultiTermSearcher(indexReader search.Reader, terms []string,
	field string, boost float64, scorer search.Scorer, compScorer search.CompositeScorer,
	options search.SearcherOptions, limit bool) (
	search.Searcher, error)

func NewMultiTermSearcherBytes 

func NewMultiTermSearcherBytes(indexReader search.Reader, terms [][]byte,
	field string, boost float64, scorer search.Scorer, compScorer search.CompositeScorer,
	options search.SearcherOptions, limit bool) (search.Searcher, error)

func NewMultiTermSearcherIndividualBoost 

func NewMultiTermSearcherIndividualBoost(indexReader search.Reader, terms []string, termBoosts []float64,
	field string, boost float64, scorer search.Scorer, compScorer search.CompositeScorer,
	options search.SearcherOptions, limit bool) (search.Searcher, error)

func NewNumericRangeSearcher 

func NewNumericRangeSearcher(indexReader search.Reader,
	min, max float64, inclusiveMin, inclusiveMax bool, field string,
	boost float64, scorer search.Scorer, compScorer search.CompositeScorer,
	options search.SearcherOptions) (search.Searcher, error)

func NewRegexpStringSearcher 

func NewRegexpStringSearcher(indexReader search.Reader, pattern, field string,
	boost float64, scorer search.Scorer, compScorer search.CompositeScorer,
	options search.SearcherOptions) (search.Searcher, error)

NewRegexpStringSearcher is similar to NewRegexpSearcher, but additionally optimizes for index readers that handle regexp's.

func NewTermPrefixSearcher 

func NewTermPrefixSearcher(indexReader search.Reader, prefix, field string,
	boost float64, scorer search.Scorer, compScorer search.CompositeScorer,
	options search.SearcherOptions) (search.Searcher, error)

func NewTermRangeSearcher 

func NewTermRangeSearcher(indexReader search.Reader,
	min, max []byte, inclusiveMin, inclusiveMax bool, field string,
	boost float64, scorer search.Scorer, compScorer search.CompositeScorer,
	options search.SearcherOptions) (search.Searcher, error)

Types

type BooleanSearcher 

type BooleanSearcher struct {
	// contains filtered or unexported fields
}

func NewBooleanSearcher 

func NewBooleanSearcher(mustSearcher, shouldSearcher, mustNotSearcher search.Searcher,
	scorer search.CompositeScorer, options search.SearcherOptions) (*BooleanSearcher, error)

func (*BooleanSearcher) Advance 

func (s *BooleanSearcher) Advance(ctx *search.Context, number uint64) (*search.DocumentMatch, error)

func (*BooleanSearcher) Close 

func (s *BooleanSearcher) Close() error

func (*BooleanSearcher) Count 

func (s *BooleanSearcher) Count() uint64

func (*BooleanSearcher) DocumentMatchPoolSize 

func (s *BooleanSearcher) DocumentMatchPoolSize() int

func (*BooleanSearcher) Min 

func (s *BooleanSearcher) Min() int

func (*BooleanSearcher) Next 

func (s *BooleanSearcher) Next(ctx *search.Context) (*search.DocumentMatch, error)

func (*BooleanSearcher) Size 

func (s *BooleanSearcher) Size() int

type ConjunctionSearcher 

type ConjunctionSearcher struct {
	// contains filtered or unexported fields
}

func (*ConjunctionSearcher) Advance 

func (s *ConjunctionSearcher) Advance(ctx *search.Context, number uint64) (*search.DocumentMatch, error)

func (*ConjunctionSearcher) Close 

func (s *ConjunctionSearcher) Close() (rv error)

func (*ConjunctionSearcher) Count 

func (s *ConjunctionSearcher) Count() uint64

func (*ConjunctionSearcher) DocumentMatchPoolSize 

func (s *ConjunctionSearcher) DocumentMatchPoolSize() int

func (*ConjunctionSearcher) Min 

func (s *ConjunctionSearcher) Min() int

func (*ConjunctionSearcher) Next 

func (s *ConjunctionSearcher) Next(ctx *search.Context) (*search.DocumentMatch, error)

func (*ConjunctionSearcher) Size 

func (s *ConjunctionSearcher) Size() int

type DisjunctionHeapSearcher 

type DisjunctionHeapSearcher struct {
	// contains filtered or unexported fields
}

func (*DisjunctionHeapSearcher) Advance 

func (s *DisjunctionHeapSearcher) Advance(ctx *search.Context,
	number uint64) (*search.DocumentMatch, error)

func (*DisjunctionHeapSearcher) Close 

func (s *DisjunctionHeapSearcher) Close() (rv error)

func (*DisjunctionHeapSearcher) Count 

func (s *DisjunctionHeapSearcher) Count() uint64

func (*DisjunctionHeapSearcher) DocumentMatchPoolSize 

func (s *DisjunctionHeapSearcher) DocumentMatchPoolSize() int

func (*DisjunctionHeapSearcher) Len 

func (s *DisjunctionHeapSearcher) Len() int

func (*DisjunctionHeapSearcher) Less 

func (s *DisjunctionHeapSearcher) Less(i, j int) bool

func (*DisjunctionHeapSearcher) Min 

func (s *DisjunctionHeapSearcher) Min() int

func (*DisjunctionHeapSearcher) Next 

func (s *DisjunctionHeapSearcher) Next(ctx *search.Context) (
	*search.DocumentMatch, error)

func (*DisjunctionHeapSearcher) Optimize 

func (s *DisjunctionHeapSearcher) Optimize(kind string, octx segment.OptimizableContext) (
	segment.OptimizableContext, error)

a disjunction searcher implements the index.Optimizable interface but only activates on an edge case where the disjunction is a wrapper around a single Optimizable child searcher

func (*DisjunctionHeapSearcher) Pop 

func (s *DisjunctionHeapSearcher) Pop() interface{}

func (*DisjunctionHeapSearcher) Push 

func (s *DisjunctionHeapSearcher) Push(x interface{})

func (*DisjunctionHeapSearcher) Size 

func (s *DisjunctionHeapSearcher) Size() int

func (*DisjunctionHeapSearcher) Swap 

func (s *DisjunctionHeapSearcher) Swap(i, j int)

type DisjunctionSliceSearcher 

type DisjunctionSliceSearcher struct {
	// contains filtered or unexported fields
}

func (*DisjunctionSliceSearcher) Advance 

func (s *DisjunctionSliceSearcher) Advance(ctx *search.Context,
	number uint64) (*search.DocumentMatch, error)

func (*DisjunctionSliceSearcher) Close 

func (s *DisjunctionSliceSearcher) Close() (rv error)

func (*DisjunctionSliceSearcher) Count 

func (s *DisjunctionSliceSearcher) Count() uint64

func (*DisjunctionSliceSearcher) DocumentMatchPoolSize 

func (s *DisjunctionSliceSearcher) DocumentMatchPoolSize() int

func (*DisjunctionSliceSearcher) Min 

func (s *DisjunctionSliceSearcher) Min() int

func (*DisjunctionSliceSearcher) Next 

func (s *DisjunctionSliceSearcher) Next(ctx *search.Context) (
	*search.DocumentMatch, error)

func (*DisjunctionSliceSearcher) Optimize 

func (s *DisjunctionSliceSearcher) Optimize(kind string, octx segment.OptimizableContext) (
	segment.OptimizableContext, error)

a disjunction searcher implements the index.Optimizable interface but only activates on an edge case where the disjunction is a wrapper around a single Optimizable child searcher

func (*DisjunctionSliceSearcher) Size 

func (s *DisjunctionSliceSearcher) Size() int

type FilterFunc 

type FilterFunc func(d *search.DocumentMatch) bool

FilterFunc defines a function which can filter documents returning true means keep the document returning false means do not keep the document

type FilteringSearcher 

type FilteringSearcher struct {
	// contains filtered or unexported fields
}

FilteringSearcher wraps any other searcher, but checks any Next/Advance call against the supplied FilterFunc

func NewFilteringSearcher 

func NewFilteringSearcher(s search.Searcher, filter FilterFunc) *FilteringSearcher

func (*FilteringSearcher) Advance 

func (f *FilteringSearcher) Advance(ctx *search.Context, number uint64) (*search.DocumentMatch, error)

func (*FilteringSearcher) Close 

func (f *FilteringSearcher) Close() error

func (*FilteringSearcher) Count 

func (f *FilteringSearcher) Count() uint64

func (*FilteringSearcher) DocumentMatchPoolSize 

func (f *FilteringSearcher) DocumentMatchPoolSize() int

func (*FilteringSearcher) Min 

func (f *FilteringSearcher) Min() int

func (*FilteringSearcher) Next 

func (f *FilteringSearcher) Next(ctx *search.Context) (*search.DocumentMatch, error)

func (*FilteringSearcher) Size 

func (f *FilteringSearcher) Size() int

type MatchAllSearcher 

type MatchAllSearcher struct {
	// contains filtered or unexported fields
}

func NewMatchAllSearcher 

func NewMatchAllSearcher(indexReader search.Reader, boost float64, scorer search.Scorer,
	options search.SearcherOptions) (*MatchAllSearcher, error)

func (*MatchAllSearcher) Advance 

func (s *MatchAllSearcher) Advance(ctx *search.Context, number uint64) (*search.DocumentMatch, error)

func (*MatchAllSearcher) Close 

func (s *MatchAllSearcher) Close() error

func (*MatchAllSearcher) Count 

func (s *MatchAllSearcher) Count() uint64

func (*MatchAllSearcher) DocumentMatchPoolSize 

func (s *MatchAllSearcher) DocumentMatchPoolSize() int

func (*MatchAllSearcher) Min 

func (s *MatchAllSearcher) Min() int

func (*MatchAllSearcher) Next 

func (s *MatchAllSearcher) Next(ctx *search.Context) (*search.DocumentMatch, error)

func (*MatchAllSearcher) Size 

func (s *MatchAllSearcher) Size() int

type MatchNoneSearcher 

type MatchNoneSearcher struct{}

func NewMatchNoneSearcher 

func NewMatchNoneSearcher(indexReader search.Reader, options search.SearcherOptions) (*MatchNoneSearcher, error)

func (*MatchNoneSearcher) Advance 

func (s *MatchNoneSearcher) Advance(ctx *search.Context, number uint64) (*search.DocumentMatch, error)

func (*MatchNoneSearcher) Close 

func (s *MatchNoneSearcher) Close() error

func (*MatchNoneSearcher) Count 

func (s *MatchNoneSearcher) Count() uint64

func (*MatchNoneSearcher) DocumentMatchPoolSize 

func (s *MatchNoneSearcher) DocumentMatchPoolSize() int

func (*MatchNoneSearcher) Min 

func (s *MatchNoneSearcher) Min() int

func (*MatchNoneSearcher) Next 

func (s *MatchNoneSearcher) Next(ctx *search.Context) (*search.DocumentMatch, error)

func (*MatchNoneSearcher) SetQueryNorm 

func (s *MatchNoneSearcher) SetQueryNorm(_ float64)

func (*MatchNoneSearcher) Size 

func (s *MatchNoneSearcher) Size() int

func (*MatchNoneSearcher) Weight 

func (s *MatchNoneSearcher) Weight() float64

type OrderedSearcherList 

type OrderedSearcherList []search.Searcher

func (OrderedSearcherList) Len 

func (otrl OrderedSearcherList) Len() int

func (OrderedSearcherList) Less 

func (otrl OrderedSearcherList) Less(i, j int) bool

func (OrderedSearcherList) Swap 

func (otrl OrderedSearcherList) Swap(i, j int)

type PhraseSearcher 

type PhraseSearcher struct {
	// contains filtered or unexported fields
}

func NewMultiPhraseSearcher 

func NewMultiPhraseSearcher(indexReader search.Reader, terms [][]string, field string, scorer search.Scorer,
	options search.SearcherOptions) (*PhraseSearcher, error)

func NewSloppyMultiPhraseSearcher added in v0.1.5 

func NewSloppyMultiPhraseSearcher(indexReader search.Reader, terms [][]string, field string, slop int,
	scorer search.Scorer, options search.SearcherOptions) (*PhraseSearcher, error)

NewSloppyMultiPhraseSearcher create a multi-phrase searcher which tolerates a specified "sloppyness" the value of the slop parameter restricts the distance between the terms

func (*PhraseSearcher) Advance 

func (s *PhraseSearcher) Advance(ctx *search.Context, number uint64) (*search.DocumentMatch, error)

func (*PhraseSearcher) Close 

func (s *PhraseSearcher) Close() error

func (*PhraseSearcher) Count 

func (s *PhraseSearcher) Count() uint64

func (*PhraseSearcher) DocumentMatchPoolSize 

func (s *PhraseSearcher) DocumentMatchPoolSize() int

func (*PhraseSearcher) Min 

func (s *PhraseSearcher) Min() int

func (*PhraseSearcher) Next 

func (s *PhraseSearcher) Next(ctx *search.Context) (*search.DocumentMatch, error)

func (*PhraseSearcher) Size 

func (s *PhraseSearcher) Size() int

type TermSearcher 

type TermSearcher struct {
	// contains filtered or unexported fields
}

func NewTermSearcher 

func NewTermSearcher(indexReader search.Reader, term, field string, boost float64, scorer search.Scorer,
	options search.SearcherOptions) (*TermSearcher, error)

func NewTermSearcherBytes 

func NewTermSearcherBytes(indexReader search.Reader, term []byte, field string, boost float64, scorer search.Scorer,
	options search.SearcherOptions) (*TermSearcher, error)

func (*TermSearcher) Advance 

func (s *TermSearcher) Advance(ctx *search.Context, number uint64) (*search.DocumentMatch, error)

func (*TermSearcher) Close 

func (s *TermSearcher) Close() error

func (*TermSearcher) Count 

func (s *TermSearcher) Count() uint64

func (*TermSearcher) DocumentMatchPoolSize 

func (s *TermSearcher) DocumentMatchPoolSize() int

func (*TermSearcher) Min 

func (s *TermSearcher) Min() int

func (*TermSearcher) Next 

func (s *TermSearcher) Next(ctx *search.Context) (*search.DocumentMatch, error)

func (*TermSearcher) Optimize 

func (s *TermSearcher) Optimize(kind string, octx segment.OptimizableContext) (
	segment.OptimizableContext, error)

func (*TermSearcher) Size 

func (s *TermSearcher) Size() int

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