C# Class Lucene.Net.Spatial.Serialized.SerializedDVStrategy

A SpatialStrategy based on serializing a Shape stored into BinaryDocValues. This is not at all fast; it's designed to be used in conjuction with another index based SpatialStrategy that is approximated(like Prefix.RecursivePrefixTreeStrategy) to add precision or eventually make more specific / advanced calculations on the per-document geometry. The serialization uses Spatial4j's BinaryCodec. @lucene.experimental

Inheritance: SpatialStrategy

显示文件 Open project: apache/lucenenet Class Usage Examples

Public Methods

Method	Description
CreateIndexableFields ( IShape shape ) : Lucene.Net.Documents.Field[]
MakeDistanceValueSource ( IPoint queryPoint, double multiplier ) : ValueSource
MakeFilter ( SpatialArgs args ) : Filter	Returns a Filter that should be used with FilteredQuery.QUERY_FIRST_FILTER_STRATEGY. Use in another manner is likely to result in an NotSupportedException to prevent misuse because the filter can't efficiently work via iteration.
MakeQuery ( SpatialArgs args ) : ConstantScoreQuery
MakeShapeValueSource ( ) : ValueSource	Provides access to each shape per document as a ValueSource in which FunctionValues.ObjectVal(int) returns a IShape.
SerializedDVStrategy ( SpatialContext ctx, string fieldName ) : Lucene.Net.Documents	Constructs the spatial strategy with its mandatory arguments.

Method Details

CreateIndexableFields() public method

public CreateIndexableFields ( IShape shape ) : Lucene.Net.Documents.Field[]
shape	IShape
return	Lucene.Net.Documents.Field[]

MakeDistanceValueSource() public method

public MakeDistanceValueSource ( IPoint queryPoint, double multiplier ) : ValueSource
queryPoint	IPoint
multiplier	double
return	ValueSource

MakeFilter() public method

Returns a Filter that should be used with FilteredQuery.QUERY_FIRST_FILTER_STRATEGY. Use in another manner is likely to result in an NotSupportedException to prevent misuse because the filter can't efficiently work via iteration.

public MakeFilter ( SpatialArgs args ) : Filter
args	Lucene.Net.Spatial.Queries.SpatialArgs
return	Lucene.Net.Search.Filter

MakeQuery() public method

public MakeQuery ( SpatialArgs args ) : ConstantScoreQuery
args	Lucene.Net.Spatial.Queries.SpatialArgs
return	Lucene.Net.Search.ConstantScoreQuery

MakeShapeValueSource() public method

Provides access to each shape per document as a ValueSource in which FunctionValues.ObjectVal(int) returns a IShape.

public MakeShapeValueSource ( ) : ValueSource
return	ValueSource

SerializedDVStrategy() public method

Constructs the spatial strategy with its mandatory arguments.

public SerializedDVStrategy ( SpatialContext ctx, string fieldName ) : Lucene.Net.Documents
ctx	Spatial4n.Core.Context.SpatialContext
fieldName	string
return	Lucene.Net.Documents