Class DisjunctionMaxQuery.DisjunctionMaxWeight

Expert: the Weight for DisjunctionMaxQuery, used to normalize, score and explain these queries.

NOTE: this API and implementation is subject to change suddenly in the next release.

Inheritance
System.Object
Weight
DisjunctionMaxQuery.DisjunctionMaxWeight
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Lucene.Net.Search
Assembly: Lucene.Net.dll
Syntax
protected class DisjunctionMaxWeight : Weight

Constructors

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DisjunctionMaxWeight(DisjunctionMaxQuery, IndexSearcher)

Construct the Weight for this Query searched by searcher. Recursively construct subquery weights.

Declaration
public DisjunctionMaxWeight(DisjunctionMaxQuery outerInstance, IndexSearcher searcher)
Parameters
Type Name Description
DisjunctionMaxQuery outerInstance
IndexSearcher searcher

Fields

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m_weights

The Weights for our subqueries, in 1-1 correspondence with disjuncts

Declaration
protected List<Weight> m_weights
Field Value
Type Description
System.Collections.Generic.List<Weight>

Properties

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Query

Return our associated DisjunctionMaxQuery

Declaration
public override Query Query { get; }
Property Value
Type Description
Query
Overrides

Methods

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Explain(AtomicReaderContext, Int32)

Explain the score we computed for doc

Declaration
public override Explanation Explain(AtomicReaderContext context, int doc)
Parameters
Type Name Description
AtomicReaderContext context
System.Int32 doc
Returns
Type Description
Explanation
Overrides
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GetScorer(AtomicReaderContext, IBits)

Create the scorer used to score our associated DisjunctionMaxQuery

Declaration
public override Scorer GetScorer(AtomicReaderContext context, IBits acceptDocs)
Parameters
Type Name Description
AtomicReaderContext context
IBits acceptDocs
Returns
Type Description
Scorer
Overrides
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GetValueForNormalization()

Compute the sub of squared weights of us applied to our subqueries. Used for normalization.

Declaration
public override float GetValueForNormalization()
Returns
Type Description
System.Single
Overrides
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Normalize(Single, Single)

Apply the computed normalization factor to our subqueries

Declaration
public override void Normalize(float norm, float topLevelBoost)
Parameters
Type Name Description
System.Single norm
System.Single topLevelBoost
Overrides