public override Explanation Explain(IndexReader ir, int i)
{
Explanation inner = weight.Explain(ir, i);
if (Enclosing_Instance.GetBoost() != 1)
{
Explanation preBoost = inner;
inner = new Explanation(inner.GetValue() * Enclosing_Instance.GetBoost(), "product of:");
inner.AddDetail(new Explanation(Enclosing_Instance.GetBoost(), "boost"));
inner.AddDetail(preBoost);
}
Filter f = Enclosing_Instance.filter;
DocIdSet docIdSet = f.GetDocIdSet(ir);
DocIdSetIterator docIdSetIterator = docIdSet == null?DocIdSet.EMPTY_DOCIDSET.Iterator() : docIdSet.Iterator();
if (docIdSetIterator == null)
{
docIdSetIterator = DocIdSet.EMPTY_DOCIDSET.Iterator();
}
if (docIdSetIterator.Advance(i) == i)
{
return(inner);
}
else
{
Explanation result = new Explanation(0.0f, "failure to match filter: " + f.ToString());
result.AddDetail(inner);
return(result);
}
}
private Explanation DoExplain(IndexReader reader, int doc)
{
Scorer[] valSrcScorers = new Scorer[valSrcWeights.Length];
for (int i = 0; i < valSrcScorers.Length; i++)
{
valSrcScorers[i] = valSrcWeights[i].Scorer(reader, true, false);
}
Explanation subQueryExpl = subQueryWeight.Explain(reader, doc);
if (!subQueryExpl.IsMatch())
{
return(subQueryExpl);
}
// match
Explanation[] valSrcExpls = new Explanation[valSrcScorers.Length];
for (int i = 0; i < valSrcScorers.Length; i++)
{
valSrcExpls[i] = valSrcScorers[i].Explain(doc);
}
Explanation customExp = Enclosing_Instance.GetCustomScoreProvider(reader).CustomExplain(doc, subQueryExpl, valSrcExpls);
float sc = GetValue() * customExp.GetValue();
Explanation res = new ComplexExplanation(true, sc, Enclosing_Instance.ToString() + ", product of:");
res.AddDetail(customExp);
res.AddDetail(new Explanation(GetValue(), "queryBoost")); // actually using the q boost as q weight (== weight value)
return(res);
}