Class IDFValueSource

Function that returns Idf(Int64, Int64) for every document.

Note that the configured Similarity for the field must be a subclass of Lucene.Net.Search.Similarities.TFIDFSimilarity

Note

This API is for internal purposes only and might change in incompatible ways in the next release.

Inheritance
System.Object
ValueSource
DocFreqValueSource
IDFValueSource
Inherited Members
System.Object.Equals(System.Object, System.Object)
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Lucene.Net.Queries.Function.ValueSources
Assembly: Lucene.Net.Queries.dll
Syntax
public class IDFValueSource : DocFreqValueSource

Constructors

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IDFValueSource(String, String, String, BytesRef)

Declaration
public IDFValueSource(string field, string val, string indexedField, BytesRef indexedBytes)
Parameters
Type Name Description
System.String field
System.String val
System.String indexedField
Lucene.Net.Util.BytesRef indexedBytes

Properties

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Name

Declaration
public override string Name { get; }
Property Value
Type Description
System.String
Overrides

Methods

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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
FunctionValues
Overrides