SpellChecker.Net.Search.Spell.SpellChecker.ClearIndex C# (CSharp) Method

        public virtual void ClearIndex()
        {
            lock (modifyCurrentIndexLock)
            {
                EnsureOpen();
                Directory dir = this.spellindex;
                IndexWriter writer = new IndexWriter(dir, null, true, IndexWriter.MaxFieldLength.UNLIMITED);
                writer.Close();
                SwapSearcher(dir);
            }
        }

        private static void doSpellCheckerIndexing(string LuceneIndexDir, string SpellCheckerIndexDir)
        {
            try
            {
                // http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/search/spell/SpellChecker.html
                FSDirectory spellCheckerIndexDir = FSDirectory.GetDirectory(SpellCheckerIndexDir, false);
                FSDirectory indexDir             = FSDirectory.GetDirectory(LuceneIndexDir, false);

                SpellChecker.Net.Search.Spell.SpellChecker spellchecker = new SpellChecker.Net.Search.Spell.SpellChecker(spellCheckerIndexDir);
                spellchecker.ClearIndex();
                // SpellChecker.Net.Search.Spell.SpellChecker spellchecker = new SpellChecker.Net.Search.Spell.SpellChecker (global::Lucene.Net.Store.Directory SpellChecker(spellIndexDirectory);

                IndexReader r = IndexReader.Open(indexDir);
                try
                {
                    // To index a field of a user index:
                    Dictionary dict = new SpellChecker.Net.Search.Spell.LuceneDictionary(r, "title");

                    spellchecker.IndexDictionary(dict);
                }
                finally
                {
                    r.Close();
                }
            }
            catch (Exception ex)
            {
                Console.Write("Could not create spell-checking index" + ex.Message);
            }
        }