C# Класс Lucene.Net.Facet.DrillSideways

Computes drill down and sideways counts for the provided DrillDownQuery. Drill sideways counts include alternative values/aggregates for the drill-down dimensions so that a dimension does not disappear after the user drills down into it.

Use one of the static search methods to do the search, and then get the hits and facet results from the returned DrillSidewaysResult.

NOTE: this allocates one FacetsCollector for each drill-down, plus one. If your index has high number of facet labels then this will multiply your memory usage. @lucene.experimental

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Защищенные свойства (Protected)

Свойство	Тип	Описание
config	Lucene.Net.Facet.FacetsConfig
searcher	Lucene.Net.Search.IndexSearcher
state	Lucene.Net.Facet.SortedSet.SortedSetDocValuesReaderState
taxoReader	TaxonomyReader

Открытые методы

Метод	Описание
DrillSideways ( IndexSearcher searcher, Lucene.Net.Facet.FacetsConfig config, SortedSetDocValuesReaderState state ) : Lucene.Net.Facet.SortedSet	Create a new DrillSideways instance, assuming the categories were indexed with SortedSetDocValuesFacetField.
DrillSideways ( IndexSearcher searcher, Lucene.Net.Facet.FacetsConfig config, TaxonomyReader taxoReader ) : Lucene.Net.Facet.SortedSet	Create a new DrillSideways instance.
DrillSideways ( IndexSearcher searcher, Lucene.Net.Facet.FacetsConfig config, TaxonomyReader taxoReader, SortedSetDocValuesReaderState state ) : Lucene.Net.Facet.SortedSet	Create a new DrillSideways instance, where some dimensions were indexed with SortedSetDocValuesFacetField and others were indexed with FacetField.
Search ( DrillDownQuery query, Collector hitCollector ) : DrillSidewaysResult	Search, collecting hits with a Collector, and computing drill down and sideways counts.
Search ( DrillDownQuery query, Filter filter, FieldDoc after, int topN, Lucene.Net.Search.Sort sort, bool doDocScores, bool doMaxScore ) : DrillSidewaysResult	Search, sorting by Sort, and computing drill down and sideways counts.
Search ( DrillDownQuery query, int topN ) : DrillSidewaysResult	Search, sorting by score, and computing drill down and sideways counts.
Search ( Lucene.Net.Search.ScoreDoc after, DrillDownQuery query, int topN ) : DrillSidewaysResult	Search, sorting by score, and computing drill down and sideways counts.

Защищенные методы

Метод	Описание
BuildFacetsResult ( FacetsCollector drillDowns, FacetsCollector drillSideways, string drillSidewaysDims ) : Lucene.Net.Facet.Facets	Subclass can override to customize per-dim Facets impl.
ScoreSubDocsAtOnce ( ) : bool	Override this and return true if your collector (e.g., Join.ToParentBlockJoinCollector) expects all sub-scorers to be positioned on the document being collected. This will cause some performance loss; default is `false`. Note that if you return true from this method (in a subclass) be sure your collector also returns `false` from Collector.AcceptsDocsOutOfOrder: this will trick BooleanQuery into also scoring all subDocs at once.

Описание методов

BuildFacetsResult() защищенный Метод

Subclass can override to customize per-dim Facets impl.

protected BuildFacetsResult ( FacetsCollector drillDowns, FacetsCollector drillSideways, string drillSidewaysDims ) : Lucene.Net.Facet.Facets
drillDowns	FacetsCollector
drillSideways	FacetsCollector
drillSidewaysDims	string
Результат	Lucene.Net.Facet.Facets

DrillSideways() публичный Метод

Create a new DrillSideways instance, assuming the categories were indexed with SortedSetDocValuesFacetField.

public DrillSideways ( IndexSearcher searcher, Lucene.Net.Facet.FacetsConfig config, SortedSetDocValuesReaderState state ) : Lucene.Net.Facet.SortedSet
searcher	Lucene.Net.Search.IndexSearcher
config	Lucene.Net.Facet.FacetsConfig
state	Lucene.Net.Facet.SortedSet.SortedSetDocValuesReaderState
Результат	Lucene.Net.Facet.SortedSet

DrillSideways() публичный Метод

Create a new DrillSideways instance.

public DrillSideways ( IndexSearcher searcher, Lucene.Net.Facet.FacetsConfig config, TaxonomyReader taxoReader ) : Lucene.Net.Facet.SortedSet
searcher	Lucene.Net.Search.IndexSearcher
config	Lucene.Net.Facet.FacetsConfig
taxoReader	TaxonomyReader
Результат	Lucene.Net.Facet.SortedSet

DrillSideways() публичный Метод

Create a new DrillSideways instance, where some dimensions were indexed with SortedSetDocValuesFacetField and others were indexed with FacetField.

public DrillSideways ( IndexSearcher searcher, Lucene.Net.Facet.FacetsConfig config, TaxonomyReader taxoReader, SortedSetDocValuesReaderState state ) : Lucene.Net.Facet.SortedSet
searcher	Lucene.Net.Search.IndexSearcher
config	Lucene.Net.Facet.FacetsConfig
taxoReader	TaxonomyReader
state	Lucene.Net.Facet.SortedSet.SortedSetDocValuesReaderState
Результат	Lucene.Net.Facet.SortedSet

ScoreSubDocsAtOnce() защищенный Метод

Override this and return true if your collector (e.g., Join.ToParentBlockJoinCollector) expects all sub-scorers to be positioned on the document being collected. This will cause some performance loss; default is false. Note that if you return true from this method (in a subclass) be sure your collector also returns false from Collector.AcceptsDocsOutOfOrder: this will trick BooleanQuery into also scoring all subDocs at once.

protected ScoreSubDocsAtOnce ( ) : bool
Результат	bool

Search() публичный Метод

Search, collecting hits with a Collector, and computing drill down and sideways counts.

public Search ( DrillDownQuery query, Collector hitCollector ) : DrillSidewaysResult
query	DrillDownQuery
hitCollector	Lucene.Net.Search.Collector
Результат	DrillSidewaysResult

Search() публичный Метод

Search, sorting by Sort, and computing drill down and sideways counts.

public Search ( DrillDownQuery query, Filter filter, FieldDoc after, int topN, Lucene.Net.Search.Sort sort, bool doDocScores, bool doMaxScore ) : DrillSidewaysResult
query	DrillDownQuery
filter	Lucene.Net.Search.Filter
after	Lucene.Net.Search.FieldDoc
topN	int
sort	Lucene.Net.Search.Sort
doDocScores	bool
doMaxScore	bool
Результат	DrillSidewaysResult

Search() публичный Метод

Search, sorting by score, and computing drill down and sideways counts.

public Search ( DrillDownQuery query, int topN ) : DrillSidewaysResult
query	DrillDownQuery
topN	int
Результат	DrillSidewaysResult

Search() публичный Метод

Search, sorting by score, and computing drill down and sideways counts.

public Search ( Lucene.Net.Search.ScoreDoc after, DrillDownQuery query, int topN ) : DrillSidewaysResult
after	Lucene.Net.Search.ScoreDoc
query	DrillDownQuery
topN	int
Результат	DrillSidewaysResult

Описание свойств

config защищенное свойство

FacetsConfig passed to constructor.

protected FacetsConfig,Lucene.Net.Facet config
Результат	Lucene.Net.Facet.FacetsConfig

searcher защищенное свойство

IndexSearcher passed to constructor.

protected IndexSearcher,Lucene.Net.Search searcher
Результат	Lucene.Net.Search.IndexSearcher

state защищенное свойство

SortedSetDocValuesReaderState passed to constructor; can be null.

protected SortedSetDocValuesReaderState,Lucene.Net.Facet.SortedSet state
Результат	Lucene.Net.Facet.SortedSet.SortedSetDocValuesReaderState

taxoReader защищенное свойство

TaxonomyReader passed to constructor.

protected TaxonomyReader taxoReader
Результат	TaxonomyReader