Quick and complete Lucene.Net example

LuceneNetExample.cs

using System;
using System.Globalization;
using Lucene.Net.Analysis.Standard;
using Lucene.Net.Documents;
using Lucene.Net.Index;
using Lucene.Net.QueryParsers;
using Lucene.Net.Search;
using Lucene.Net.Store;
using Version = Lucene.Net.Util.Version;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main()
        {
            var dir = new RAMDirectory();
            var analyzer = new StandardAnalyzer(Version.LUCENE_30);

            // Index
            using (var writer = new IndexWriter(dir, analyzer, IndexWriter.MaxFieldLength.UNLIMITED))
            {
                int i = 1;
                foreach (var line in new[]
                {
                    "Take this kiss upon the brow!",
                    "And, in parting from you now,",
                    "Thus much let me avow--",
                    "You are not wrong, who deem",
                    "That my days have been a dream;"
                })
                {
                    var bodyField = new Field("line", line, Field.Store.YES, Field.Index.ANALYZED);
                    var idField = new Field("number", (i++).ToString(CultureInfo.InvariantCulture), Field.Store.YES, Field.Index.NOT_ANALYZED);

                    var document = new Document();
                    document.Add(bodyField);
                    document.Add(idField);

                    writer.AddDocument(document);
                }

                writer.Optimize();
            }


            // Search
            using (var indexSearcher = new IndexSearcher(dir))
            {
                var queryParser = new QueryParser(Version.LUCENE_30, "line", analyzer);

                foreach (var term in new[] { "days", "much wrong", "kiss" })
                {
                    Console.WriteLine("__________________________________________________________");
                    Console.WriteLine("Searching for the term \"{0}\"...", term);

                    Query query = queryParser.Parse(term);
                    TopDocs hits = indexSearcher.Search(query, 10);

                    foreach (ScoreDoc scoreDoc in hits.ScoreDocs)
                    {
                        Document document = indexSearcher.Doc(scoreDoc.Doc);

                        Console.WriteLine("{0} {1} {2}", scoreDoc.Score, document.Get("number"), document.Get("line"));
                    }
                }
            }

            Console.ReadLine();
        }
    }
}