Lucene.Net.Index.IndexWriter.Dispose C# (CSharp) Method

        public virtual void Dispose(bool waitForMerges)
        {
            Dispose(true, waitForMerges);
        }

        public static void CreateIndexCreative(Creative entity, string IndexPath)
        {
            var document = new Document();
            document.Add(new Field("CreativeId", entity.Creativeid.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
            document.Add(new Field("Title", entity.Title, Field.Store.YES, Field.Index.ANALYZED));
            if (!string.IsNullOrEmpty(entity.About))
            {
                document.Add(new Field("About", entity.About, Field.Store.YES, Field.Index.ANALYZED));
            }

            Directory directory = FSDirectory.Open(new DirectoryInfo(IndexPath));
              Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_30);

               var writer = new IndexWriter(directory, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);

              try
              {

            writer.AddDocument(document);

            writer.Optimize();

            writer.Dispose();
              }
             finally
              {

              writer.Dispose();
              }
        }