Class DistanceToShapeValueSource

The distance from a provided Point to a Point retrieved from a ValueSource via Lucene.Net.Queries.Function.FunctionValues.ObjectVal(System.Int32). The distance is calculated via a Spatial4n.Distance.IDistanceCalculator.

Note

This API is experimental and might change in incompatible ways in the next release.

Inheritance

System.Object

Lucene.Net.Queries.Function.ValueSource

DistanceToShapeValueSource

Inherited Members

Lucene.Net.Queries.Function.ValueSource.ToString()

Lucene.Net.Queries.Function.ValueSource.NewContext(Lucene.Net.Search.IndexSearcher)

Lucene.Net.Queries.Function.ValueSource.GetSortField(System.Boolean)

System.Object.Equals(System.Object, System.Object)

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

Namespace: Lucene.Net.Spatial.Util

Assembly: Lucene.Net.Spatial.dll

Syntax

public class DistanceToShapeValueSource : ValueSource

Constructors

DistanceToShapeValueSource(ValueSource, IPoint, Double, SpatialContext)

Declaration

public DistanceToShapeValueSource(ValueSource shapeValueSource, IPoint queryPoint, double multiplier, SpatialContext ctx)

Parameters

Type	Name	Description
Lucene.Net.Queries.Function.ValueSource	shapeValueSource
Spatial4n.Shapes.IPoint	queryPoint
System.Double	multiplier
Spatial4n.Context.SpatialContext	ctx

Methods

CreateWeight(IDictionary, IndexSearcher)

Declaration

public override void CreateWeight(IDictionary context, IndexSearcher searcher)

Parameters

Type	Name	Description
System.Collections.IDictionary	context
Lucene.Net.Search.IndexSearcher	searcher

Overrides

Lucene.Net.Queries.Function.ValueSource.CreateWeight(System.Collections.IDictionary, Lucene.Net.Search.IndexSearcher)

Equals(Object)

Declaration

public override bool Equals(object o)

Parameters

Type	Name	Description
System.Object	o

Returns

Type	Description
System.Boolean

Overrides

Lucene.Net.Queries.Function.ValueSource.Equals(System.Object)

GetDescription()

Declaration

public override string GetDescription()

Returns

Type	Description
System.String

Overrides

Lucene.Net.Queries.Function.ValueSource.GetDescription()

GetHashCode()

Declaration

public override int GetHashCode()

Returns

Type	Description
System.Int32

Overrides

Lucene.Net.Queries.Function.ValueSource.GetHashCode()

GetValues(IDictionary, AtomicReaderContext)

Declaration

public override FunctionValues GetValues(IDictionary context, AtomicReaderContext readerContext)

Parameters

Type	Name	Description
System.Collections.IDictionary	context
Lucene.Net.Index.AtomicReaderContext	readerContext

Returns

Type	Description
Lucene.Net.Queries.Function.FunctionValues

Overrides

Lucene.Net.Queries.Function.ValueSource.GetValues(System.Collections.IDictionary, Lucene.Net.Index.AtomicReaderContext)