/// <summary>Scores and collects all matching documents.</summary>
/// <param name="hc">The collector to which all matching documents are passed through
/// {@link HitCollector#Collect(int, float)}.
/// <br>When this method is used the {@link #Explain(int)} method should not be used.
/// </param>
public override void Score(HitCollector hc)
{
if (allowDocsOutOfOrder && requiredScorers.Count == 0 && prohibitedScorers.Count < 32)
{
// fall back to BooleanScorer, scores documents somewhat out of order
BooleanScorer bs = new BooleanScorer(GetSimilarity(), minNrShouldMatch);
System.Collections.IEnumerator si = optionalScorers.GetEnumerator();
while (si.MoveNext())
{
bs.Add((Scorer)si.Current, false, false);
}
si = prohibitedScorers.GetEnumerator();
while (si.MoveNext())
{
bs.Add((Scorer)si.Current, false, true);
}
bs.Score(hc);
}
else
{
if (countingSumScorer == null)
{
InitCountingSumScorer();
}
while (countingSumScorer.Next())
{
hc.Collect(countingSumScorer.Doc(), Score());
}
}
}
/// <returns> A good old 1.4 Scorer
/// </returns>
public virtual Scorer Scorer(IndexReader reader)
{
// First see if the (faster) ConjunctionScorer will work. This can be
// used when all clauses are required. Also, at this point a
// BooleanScorer cannot be embedded in a ConjunctionScorer, as the hits
// from a BooleanScorer are not always sorted by document number (sigh)
// and hence BooleanScorer cannot implement skipTo() correctly, which is
// required by ConjunctionScorer.
bool allRequired = true;
bool noneBoolean = true;
for (int i = 0; i < weights.Count; i++)
{
BooleanClause c = (BooleanClause)Enclosing_Instance.clauses[i];
if (!c.IsRequired())
{
allRequired = false;
}
if (c.GetQuery() is BooleanQuery)
{
noneBoolean = false;
}
}
if (allRequired && noneBoolean)
{
// ConjunctionScorer is okay
ConjunctionScorer result = new ConjunctionScorer(similarity);
for (int i = 0; i < weights.Count; i++)
{
Weight w = (Weight)weights[i];
Scorer subScorer = w.Scorer(reader);
if (subScorer == null)
{
return(null);
}
result.Add(subScorer);
}
return(result);
}
// Use good-old BooleanScorer instead.
BooleanScorer result2 = new BooleanScorer(similarity);
for (int i = 0; i < weights.Count; i++)
{
BooleanClause c = (BooleanClause)Enclosing_Instance.clauses[i];
Weight w = (Weight)weights[i];
Scorer subScorer = w.Scorer(reader);
if (subScorer != null)
{
result2.Add(subScorer, c.IsRequired(), c.IsProhibited());
}
else if (c.IsRequired())
{
return(null);
}
}
return(result2);
}
/// <summary>Scores and collects all matching documents.</summary>
/// <param name="hc">The collector to which all matching documents are passed through
/// {@link HitCollector#Collect(int, float)}.
/// <br>When this method is used the {@link #Explain(int)} method should not be used.
/// </param>
public override void Score(HitCollector hc)
{
if (allowDocsOutOfOrder && requiredScorers.Count == 0 && prohibitedScorers.Count < 32)
{
// fall back to BooleanScorer, scores documents somewhat out of order
BooleanScorer bs = new BooleanScorer(GetSimilarity(), minNrShouldMatch);
System.Collections.IEnumerator si = optionalScorers.GetEnumerator();
while (si.MoveNext())
{
bs.Add((Scorer) si.Current, false, false);
}
si = prohibitedScorers.GetEnumerator();
while (si.MoveNext())
{
bs.Add((Scorer) si.Current, false, true);
}
bs.Score(hc);
}
else
{
if (countingSumScorer == null)
{
InitCountingSumScorer();
}
while (countingSumScorer.Next())
{
hc.Collect(countingSumScorer.Doc(), Score());
}
}
}
/// <returns> A good old 1.4 Scorer
/// </returns>
public virtual Scorer Scorer(IndexReader reader)
{
// First see if the (faster) ConjunctionScorer will work. This can be
// used when all clauses are required. Also, at this point a
// BooleanScorer cannot be embedded in a ConjunctionScorer, as the hits
// from a BooleanScorer are not always sorted by document number (sigh)
// and hence BooleanScorer cannot implement skipTo() correctly, which is
// required by ConjunctionScorer.
bool allRequired = true;
bool noneBoolean = true;
for (int i = 0; i < weights.Count; i++)
{
BooleanClause c = (BooleanClause) Enclosing_Instance.clauses[i];
if (!c.IsRequired())
allRequired = false;
if (c.GetQuery() is BooleanQuery)
noneBoolean = false;
}
if (allRequired && noneBoolean)
{
// ConjunctionScorer is okay
ConjunctionScorer result = new ConjunctionScorer(similarity);
for (int i = 0; i < weights.Count; i++)
{
Weight w = (Weight) weights[i];
Scorer subScorer = w.Scorer(reader);
if (subScorer == null)
return null;
result.Add(subScorer);
}
return result;
}
// Use good-old BooleanScorer instead.
BooleanScorer result2 = new BooleanScorer(similarity);
for (int i = 0; i < weights.Count; i++)
{
BooleanClause c = (BooleanClause) Enclosing_Instance.clauses[i];
Weight w = (Weight) weights[i];
Scorer subScorer = w.Scorer(reader);
if (subScorer != null)
result2.Add(subScorer, c.IsRequired(), c.IsProhibited());
else if (c.IsRequired())
return null;
}
return result2;
}
