Lucene.Net.Spatial.Prefix.RecursivePrefixTreeFilter Class Reference

Performs a spatial intersection filter against a field indexed with SpatialPrefixTree, a Trie. SPT yields terms (grids) at length 1 and at greater lengths corresponding to greater precisions. This filter recursively traverses each grid length and uses methods on Shape to efficiently know that all points at a prefix fit in the shape or not to either short-circuit unnecessary traversals or to efficiently load all enclosed points. More...

Inherits Lucene.Net.Search.Filter.

Public Member Functions
	RecursivePrefixTreeFilter (String fieldName, SpatialPrefixTree grid, Shape queryShape, int prefixGridScanLevel, int detailLevel)
override DocIdSet	GetDocIdSet (Index.IndexReader reader)
override string	ToString ()
override bool	Equals (object o)
override int	GetHashCode ()
Public Member Functions inherited from Lucene.Net.Search.Filter
abstract DocIdSet	GetDocIdSet (IndexReader reader)

Detailed Description

Performs a spatial intersection filter against a field indexed with SpatialPrefixTree, a Trie. SPT yields terms (grids) at length 1 and at greater lengths corresponding to greater precisions. This filter recursively traverses each grid length and uses methods on Shape to efficiently know that all points at a prefix fit in the shape or not to either short-circuit unnecessary traversals or to efficiently load all enclosed points.

Definition at line 36 of file RecursivePrefixTreeFilter.cs.

Constructor & Destructor Documentation

Lucene.Net.Spatial.Prefix.RecursivePrefixTreeFilter.RecursivePrefixTreeFilter	(	String	fieldName,
		SpatialPrefixTree	grid,
		Shape	queryShape,
		int	prefixGridScanLevel,
		int	detailLevel
	)

Definition at line 63 of file RecursivePrefixTreeFilter.cs.

Member Function Documentation

override bool Lucene.Net.Spatial.Prefix.RecursivePrefixTreeFilter.Equals

(

object

o

)

Definition at line 165 of file RecursivePrefixTreeFilter.cs.

override DocIdSet Lucene.Net.Spatial.Prefix.RecursivePrefixTreeFilter.GetDocIdSet

(

Index.IndexReader

reader

)

Definition at line 74 of file RecursivePrefixTreeFilter.cs.

override int Lucene.Net.Spatial.Prefix.RecursivePrefixTreeFilter.GetHashCode

(

)

Definition at line 181 of file RecursivePrefixTreeFilter.cs.

override string Lucene.Net.Spatial.Prefix.RecursivePrefixTreeFilter.ToString

(

)

Definition at line 160 of file RecursivePrefixTreeFilter.cs.

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The documentation for this class was generated from the following file:

• contrib/Spatial/Prefix/RecursivePrefixTreeFilter.cs