Lucene.Net.Index.TestDocValuesIndexing.TestAddIndexes C# (CSharp) Метод

        public virtual void TestAddIndexes()
        {
            Directory d1 = NewDirectory();
            RandomIndexWriter w = new RandomIndexWriter(Random(), d1, Similarity, TimeZone);
            Document doc = new Document();
            doc.Add(NewStringField("id", "1", Field.Store.YES));
            doc.Add(new NumericDocValuesField("dv", 1));
            w.AddDocument(doc);
            IndexReader r1 = w.Reader;
            w.Dispose();

            Directory d2 = NewDirectory();
            w = new RandomIndexWriter(Random(), d2, Similarity, TimeZone);
            doc = new Document();
            doc.Add(NewStringField("id", "2", Field.Store.YES));
            doc.Add(new NumericDocValuesField("dv", 2));
            w.AddDocument(doc);
            IndexReader r2 = w.Reader;
            w.Dispose();

            Directory d3 = NewDirectory();
            w = new RandomIndexWriter(Random(), d3, Similarity, TimeZone);
            w.AddIndexes(SlowCompositeReaderWrapper.Wrap(r1), SlowCompositeReaderWrapper.Wrap(r2));
            r1.Dispose();
            d1.Dispose();
            r2.Dispose();
            d2.Dispose();

            w.ForceMerge(1);
            DirectoryReader r3 = w.Reader;
            w.Dispose();
            AtomicReader sr = GetOnlySegmentReader(r3);
            Assert.AreEqual(2, sr.NumDocs);
            NumericDocValues docValues = sr.GetNumericDocValues("dv");
            Assert.IsNotNull(docValues);
            r3.Dispose();
            d3.Dispose();
        }