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public abstract Rewrite ( |
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| query | ||
| Результат | ||
/// <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);
}
public string GetHighlight(string value, string highlightField, Searcher searcher, string luceneRawQuery)
{
var query = GetQueryParser(highlightField).Parse(luceneRawQuery);
var scorer = new QueryScorer(searcher.Rewrite(query));
var highlighter = new Highlighter(HighlightFormatter, scorer);
var tokenStream = HighlightAnalyzer.TokenStream(highlightField, new StringReader(value));
string bestFragments = highlighter.GetBestFragments(tokenStream, value, MaxNumHighlights, Separator);
return bestFragments;
}
/// <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);
}
private static void Check(Query q1, Searcher s, bool wrap)
{
try
{
Check(q1);
if (s != null)
{
if (s is IndexSearcher)
{
IndexSearcher is_Renamed = (IndexSearcher)s;
CheckFirstSkipTo(q1, is_Renamed);
CheckSkipTo(q1, is_Renamed);
if (wrap)
{
Check(q1, WrapUnderlyingReader(is_Renamed, -1), false);
Check(q1, WrapUnderlyingReader(is_Renamed, 0), false);
Check(q1, WrapUnderlyingReader(is_Renamed, +1), false);
}
}
if (wrap)
{
Check(q1, WrapSearcher(s, -1), false);
Check(q1, WrapSearcher(s, 0), false);
Check(q1, WrapSearcher(s, +1), false);
}
CheckExplanations(q1, s);
CheckSerialization(q1, s);
Query q2 = (Query)q1.Clone();
CheckEqual(s.Rewrite(q1, null), s.Rewrite(q2, null));
}
}
catch (System.IO.IOException e)
{
throw new System.SystemException("", e);
}
}
/// <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)
{
Query query = searcher.Rewrite(this);
Weight weight = query.CreateWeight(searcher);
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;
}
private static void Check(Query q1, Searcher s, bool wrap)
{
try
{
Check(q1);
if (s != null)
{
if (s is IndexSearcher)
{
IndexSearcher is_Renamed = (IndexSearcher) s;
CheckFirstSkipTo(q1, is_Renamed);
CheckSkipTo(q1, is_Renamed);
if (wrap)
{
Check(q1, WrapUnderlyingReader(is_Renamed, - 1), false);
Check(q1, WrapUnderlyingReader(is_Renamed, 0), false);
Check(q1, WrapUnderlyingReader(is_Renamed, + 1), false);
}
}
if (wrap)
{
Check(q1, WrapSearcher(s, - 1), false);
Check(q1, WrapSearcher(s, 0), false);
Check(q1, WrapSearcher(s, + 1), false);
}
CheckExplanations(q1, s);
CheckSerialization(q1, s);
Query q2 = (Query) q1.Clone();
CheckEqual(s.Rewrite(q1), s.Rewrite(q2));
}
}
catch (System.IO.IOException e)
{
throw new System.SystemException("", e);
}
}
