protected internal SpanScorer(Spans spans, Weight weight, Similarity.SimScorer docScorer)
: base(weight)
{
this.m_docScorer = docScorer;
this.m_spans = spans;
m_doc = -1;
m_more = spans.Next();
}
public override Explanation Explain(AtomicReaderContext context, int doc)
{
PayloadTermSpanScorer scorer = (PayloadTermSpanScorer)GetScorer(context, (context.AtomicReader).LiveDocs);
if (scorer != null)
{
int newDoc = scorer.Advance(doc);
if (newDoc == doc)
{
float freq = scorer.SloppyFreq;
Similarity.SimScorer docScorer = m_similarity.GetSimScorer(m_stats, context);
Explanation expl = new Explanation();
expl.Description = "weight(" + Query + " in " + doc + ") [" + m_similarity.GetType().Name + "], result of:";
Explanation scoreExplanation = docScorer.Explain(doc, new Explanation(freq, "phraseFreq=" + freq));
expl.AddDetail(scoreExplanation);
expl.Value = scoreExplanation.Value;
// now the payloads part
// QUESTION: Is there a way to avoid this skipTo call? We need to know
// whether to load the payload or not
// GSI: I suppose we could toString the payload, but I don't think that
// would be a good idea
string field = ((SpanQuery)Query).Field;
Explanation payloadExpl = outerInstance.m_function.Explain(doc, field, scorer.m_payloadsSeen, scorer.m_payloadScore);
payloadExpl.Value = scorer.GetPayloadScore();
// combined
ComplexExplanation result = new ComplexExplanation();
if (outerInstance.includeSpanScore)
{
result.AddDetail(expl);
result.AddDetail(payloadExpl);
result.Value = expl.Value * payloadExpl.Value;
result.Description = "btq, product of:";
}
else
{
result.AddDetail(payloadExpl);
result.Value = payloadExpl.Value;
result.Description = "btq(includeSpanScore=false), result of:";
}
result.Match = true; // LUCENE-1303
return(result);
}
}
return(new ComplexExplanation(false, 0.0f, "no matching term"));
}
public PayloadTermSpanScorer(PayloadTermQuery.PayloadTermWeight outerInstance, TermSpans spans, Weight weight, Similarity.SimScorer docScorer)
: base(spans, weight, docScorer)
{
this.outerInstance = outerInstance;
termSpans = spans;
}