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

This is a Lucene.NET INTERNAL API, use at your own risk

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