Inheritance: Lucene.Net.Analysis.Analyzer
		public virtual void  TestPayloadSpanUtil()
		{
			RAMDirectory directory = new RAMDirectory();
			PayloadAnalyzer analyzer = new PayloadAnalyzer(this);
			IndexWriter writer = new IndexWriter(directory, analyzer, true);
			writer.SetSimilarity(similarity);
			Document doc = new Document();
			doc.Add(new Field(PayloadHelper.FIELD, "xx rr yy mm  pp", Field.Store.YES, Field.Index.ANALYZED));
			writer.AddDocument(doc);
			
			writer.Close();
			
			IndexSearcher searcher = new IndexSearcher(directory);
			
			IndexReader reader = searcher.GetIndexReader();
			PayloadSpanUtil psu = new PayloadSpanUtil(reader);
			
			System.Collections.Generic.ICollection<byte[]> payloads = psu.GetPayloadsForQuery(new TermQuery(new Term(PayloadHelper.FIELD, "rr")));
			if (DEBUG)
				System.Console.Out.WriteLine("Num payloads:" + payloads.Count);
			System.Collections.IEnumerator it = payloads.GetEnumerator();
			while (it.MoveNext())
			{
				byte[] bytes = (byte[]) it.Current;
				if (DEBUG)
					System.Console.Out.WriteLine(new System.String(System.Text.UTF8Encoding.UTF8.GetChars(bytes)));
			}
		}
		private IndexSearcher GetSearcher()
		{
			RAMDirectory directory = new RAMDirectory();
			PayloadAnalyzer analyzer = new PayloadAnalyzer(this);
			System.String[] docs = new System.String[]{"xx rr yy mm  pp", "xx yy mm rr pp", "nopayload qq ss pp np", "one two three four five six seven eight nine ten eleven", "nine one two three four five six seven eight eleven ten"};
			IndexWriter writer = new IndexWriter(directory, analyzer, true);
			
			writer.SetSimilarity(similarity);
			
			Document doc = null;
			for (int i = 0; i < docs.Length; i++)
			{
				doc = new Document();
				System.String docText = docs[i];
				doc.Add(new Field(PayloadHelper.FIELD, docText, Field.Store.YES, Field.Index.ANALYZED));
				writer.AddDocument(doc);
			}
			
			writer.Close();
			
			IndexSearcher searcher = new IndexSearcher(directory);
			return searcher;
		}
		public virtual IndexSearcher GetSpanNotSearcher()
		{
			RAMDirectory directory = new RAMDirectory();
			PayloadAnalyzer analyzer = new PayloadAnalyzer(this);
			IndexWriter writer = new IndexWriter(directory, analyzer, true);
			writer.SetSimilarity(similarity);
			
			Document doc = new Document();
			doc.Add(new Field(PayloadHelper.FIELD, "one two three one four three", Field.Store.YES, Field.Index.ANALYZED));
			writer.AddDocument(doc);
			
			writer.Close();
			
			IndexSearcher searcher = new IndexSearcher(directory);
			searcher.SetSimilarity(similarity);
			return searcher;
		}