func NewBooleanSearcher(indexReader index.IndexReader, mustSearcher search.Searcher, shouldSearcher search.Searcher, mustNotSearcher search.Searcher, explain bool) (*BooleanSearcher, error) {
// build our searcher
rv := BooleanSearcher{
indexReader: indexReader,
mustSearcher: mustSearcher,
shouldSearcher: shouldSearcher,
mustNotSearcher: mustNotSearcher,
scorer: scorer.NewConjunctionQueryScorer(explain),
matches: make([]*search.DocumentMatch, 2),
}
rv.computeQueryNorm()
return &rv, nil
}
func NewConjunctionSearcher(indexReader index.IndexReader, qsearchers []search.Searcher, explain bool) (*ConjunctionSearcher, error) {
// build the downstream searchers
searchers := make(OrderedSearcherList, len(qsearchers))
for i, searcher := range qsearchers {
searchers[i] = searcher
}
// sort the searchers
sort.Sort(searchers)
// build our searcher
rv := ConjunctionSearcher{
indexReader: indexReader,
explain: explain,
searchers: searchers,
currs: make([]*search.DocumentMatch, len(searchers)),
scorer: scorer.NewConjunctionQueryScorer(explain),
}
rv.computeQueryNorm()
return &rv, nil
}