Explanation* explain(IndexReader* reader, int32_t doc) {
ConstantScorer* cs = (ConstantScorer*)scorer(reader);
bool exists = cs->bits->get(doc);
_CLDELETE(cs);
ComplexExplanation* result = _CLNEW ComplexExplanation();
if (exists) {
StringBuffer buf(100);
buf.append(_T("ConstantScoreQuery("));
TCHAR* tmp = parentQuery->filter->toString();
buf.append(tmp);
_CLDELETE_LCARRAY(tmp);
buf.append(_T("), product of:"));
result->setDescription(buf.getBuffer());
result->setValue(queryWeight);
result->setMatch(true);
result->addDetail(_CLNEW Explanation(parentQuery->getBoost(), _T("boost")));
result->addDetail(_CLNEW Explanation(queryNorm, _T("queryNorm")));
} else {
StringBuffer buf(100);
buf.append(_T("ConstantScoreQuery("));
TCHAR* tmp = parentQuery->filter->toString();
buf.append(tmp);
_CLLDELETE(tmp);
buf.append(_T(") doesn't match id "));
buf.appendInt(doc);
result->setDescription(buf.getBuffer());
result->setValue(0);
result->setMatch(true);
}
_CLLDELETE(cs);
return result;
}
Explanation* Explanation::clone() const{
return _CLNEW Explanation(*this);
}
