private Scorer DualConjunctionSumScorer(Scorer req1, Scorer req2)
{
// non counting.
int requiredNrMatchers = requiredScorers.Count;
ConjunctionScorer cs = new ConjunctionScorer(defaultSimilarity);
// All scorers match, so defaultSimilarity super.score() always has 1 as
// the coordination factor.
// Therefore the sum of the scores of two scorers
// is used as score.
cs.Add(req1);
cs.Add(req2);
return(cs);
}
private Scorer DualConjunctionSumScorer(Scorer req1, Scorer req2)
{
// non counting.
//UPGRADE_NOTE: Final was removed from the declaration of 'requiredNrMatchers '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
int requiredNrMatchers = requiredScorers.Count;
ConjunctionScorer cs = new ConjunctionScorer(defaultSimilarity);
// All scorers match, so defaultSimilarity super.score() always has 1 as
// the coordination factor.
// Therefore the sum of the scores of two scorers
// is used as score.
cs.Add(req1);
cs.Add(req2);
return(cs);
}
private Scorer DualConjunctionSumScorer(Scorer req1, Scorer req2)
{
// non counting.
//UPGRADE_NOTE: Final was removed from the declaration of 'requiredNrMatchers '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
int requiredNrMatchers = requiredScorers.Count;
ConjunctionScorer cs = new ConjunctionScorer(defaultSimilarity);
// All scorers match, so defaultSimilarity super.score() always has 1 as
// the coordination factor.
// Therefore the sum of the scores of two scorers
// is used as score.
cs.Add(req1);
cs.Add(req2);
return cs;
}
/// <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);
}
/// <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;
}
private Scorer DualConjunctionSumScorer(Scorer req1, Scorer req2)
{
// non counting.
int requiredNrMatchers = requiredScorers.Count;
ConjunctionScorer cs = new ConjunctionScorer(defaultSimilarity);
// All scorers match, so defaultSimilarity super.score() always has 1 as
// the coordination factor.
// Therefore the sum of the scores of two scorers
// is used as score.
cs.Add(req1);
cs.Add(req2);
return cs;
}