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public CreateWeight ( |
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/// <summary> Returns a Weight that applies the filter to the enclosed query's Weight.
/// This is accomplished by overriding the Scorer returned by the Weight.
/// </summary>
protected internal override Weight CreateWeight(Searcher searcher)
{
Weight weight = query.CreateWeight(searcher);
Similarity similarity = query.GetSimilarity(searcher);
return(new AnonymousClassWeight(weight, similarity, this));
}
/// <summary> Returns a Weight that applies the filter to the enclosed query's Weight.
/// This is accomplished by overriding the Scorer returned by the Weight.
/// </summary>
public override Weight CreateWeight(Searcher searcher, IState state)
{
Weight weight = query.CreateWeight(searcher, state);
Similarity similarity = query.GetSimilarity(searcher);
return(new AnonymousClassWeight(weight, similarity, this));
}
/// <summary>Expert: Constructs and initializes a Weight for a top-level query. </summary>
public virtual Weight Weight(Searcher searcher)
{
Query query = searcher.Rewrite(this);
Weight weight = query.CreateWeight(searcher);
float sum = weight.SumOfSquaredWeights();
float norm = GetSimilarity(searcher).QueryNorm(sum);
weight.Normalize(norm);
return(weight);
}
/// <summary> Expert: Constructs and initializes a Weight for a top-level query.</summary>
public virtual Weight Weight(Searcher searcher, IState state)
{
Query query = searcher.Rewrite(this, state);
Weight weight = query.CreateWeight(searcher, state);
float sum = weight.GetSumOfSquaredWeights();
float norm = GetSimilarity(searcher).QueryNorm(sum);
if (float.IsInfinity(norm) || float.IsNaN(norm))
{
norm = 1.0f;
}
weight.Normalize(norm);
return(weight);
}
/// <summary>
/// Creates a normalized weight for a top-level <seealso cref="Query"/>.
/// The query is rewritten by this method and <seealso cref="Query#createWeight"/> called,
/// afterwards the <seealso cref="Weight"/> is normalized. The returned {@code Weight}
/// can then directly be used to get a <seealso cref="Scorer"/>.
/// @lucene.internal
/// </summary>
public virtual Weight CreateNormalizedWeight(Query query)
{
query = Rewrite(query);
Weight weight = query.CreateWeight(this);
float v = weight.ValueForNormalization;
float norm = Similarity.QueryNorm(v);
if (float.IsInfinity(norm) || float.IsNaN(norm))
{
norm = 1.0f;
}
weight.Normalize(norm, 1.0f);
return(weight);
}
public override Weight CreateWeight(IndexSearcher searcher)
{
return(AssertingWeight.Wrap(new Random(Random.Next()), @in.CreateWeight(searcher)));
}
public override Weight CreateWeight(IndexSearcher searcher)
{
return(AssertingWeight.Wrap(new J2N.Randomizer(random.NextInt64()), @in.CreateWeight(searcher)));
}
