public MultiPhraseWeight(MultiPhraseQuery outerInstance, IndexSearcher searcher)
{
this.outerInstance = outerInstance;
this.similarity = searcher.Similarity;
IndexReaderContext context = searcher.TopReaderContext;
// compute idf
var allTermStats = new List <TermStatistics>();
foreach (Term[] terms in outerInstance.termArrays)
{
foreach (Term term in terms)
{
TermContext termContext;
termContexts.TryGetValue(term, out termContext);
if (termContext == null)
{
termContext = TermContext.Build(context, term);
termContexts[term] = termContext;
}
allTermStats.Add(searcher.TermStatistics(term, termContext));
}
}
stats = similarity.ComputeWeight(outerInstance.Boost, searcher.CollectionStatistics(outerInstance.field), allTermStats.ToArray());
}
public PhraseWeight(PhraseQuery outerInstance, IndexSearcher searcher)
{
this.outerInstance = outerInstance;
this.similarity = searcher.Similarity;
IndexReaderContext context = searcher.TopReaderContext;
states = new TermContext[outerInstance.terms.Count];
TermStatistics[] termStats = new TermStatistics[outerInstance.terms.Count];
for (int i = 0; i < outerInstance.terms.Count; i++)
{
Term term = outerInstance.terms[i];
states[i] = TermContext.Build(context, term);
termStats[i] = searcher.TermStatistics(term, states[i]);
}
stats = similarity.ComputeWeight(outerInstance.Boost, searcher.CollectionStatistics(outerInstance.field), termStats);
}
public TermWeight(TermQuery outerInstance, IndexSearcher searcher, TermContext termStates)
{
this.outerInstance = outerInstance;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(termStates != null, "TermContext must not be null");
}
this.termStates = termStates;
this.similarity = searcher.Similarity;
this.stats = similarity.ComputeWeight(outerInstance.Boost, searcher.CollectionStatistics(outerInstance.term.Field), searcher.TermStatistics(outerInstance.term, termStates));
}