文档中短语查询匹配数

这是我使用Lucene执行短语查询的代码。虽然很清楚如何为索引中的每个文档获取分数匹配,但我不了解如何提取单个文档的匹配总数。 以下是我执行查询的代码:

        PhraseQuery.Builder builder = new PhraseQuery.Builder();

        builder.add(new Term("contents", "word1"), 0);
        builder.add(new Term("contents", "word2"), 1);
        builder.add(new Term("contents", "word3"), 2);
        builder.setSlop(3);
        PhraseQuery pq = builder.build();

        int hitsPerPage = 10;
        IndexReader reader = DirectoryReader.open(index);
        IndexSearcher searcher = new IndexSearcher(reader);

        TopDocs docs = searcher.search(pq, hitsPerPage);

        ScoreDoc[] hits = docs.scoreDocs;

        System.out.println("Found " + hits.length + " hits.");

        for(int i=0;i<hits.length;++i)
        {
            int docId = hits[i].doc;
            Document d = searcher.doc(docId);
            System.out.println(docId + " " + hits[i].score);
        }

是否有方法提取每个文档的匹配总数而不是分数?