Apache Lucene.Net 2.4.0 Class Library API

BoostingTermQuery.BoostingTermWeight.BoostingSpanScorer.Explain Method 

public override Explanation Explain(
   int doc
);

See Also

BoostingTermQuery.BoostingTermWeight.BoostingSpanScorer Class | Lucene.Net.Search.Payloads Namespace