@Singleton
@Startup
@LocalBean
@Lock(LockType.READ)
public class Indexer {
  @PostConstruct
  private void init() {
    db = (SearchDB) ctx.lookup("java:global/gorKassa/SearchDB");
    timerService = ctx.getTimerService();
    //timerService.createTimer(1400, 1400, null);
  }

  @PreDestroy
  private void destroy() {
    db = null;
    timerService = null;
  }

  @Timeout
  private void timerAction(Timer timer) {
    index();
    Logger.getLogger(SearchDB.class.getName()).log(Level.SEVERE, "@@@" + timer.getNextTimeout());
  }

  public void index() {
    Config conf = new Config();
    IndexWriterConfig config = new IndexWriterConfig(conf.getVersion(), conf.getAnalyzer());
    try {
      IndexWriter writer = new IndexWriter(conf.getDirectory(), config);
      writer.addDocument(new Document());
      writer.close();
      Logger.getLogger(Indexer.class.getName()).log(Level.SEVERE, "!!!" + writer);
    } catch (IOException e) {
      Logger.getLogger(Indexer.class.getName()).log(Level.SEVERE, "index:new IndexWriter():", e);
    }
  }

public class Config {
  private String path = "/indexDir";

  public Version getVersion() {
    return Version.LUCENE_35;
  }

  public Directory getDirectory() {
    //return new RAMDirectory();
    return getFSDirectory();
  }

  public Analyzer getAnalyzer() {
    return new StandardAnalyzer(getVersion());
  }

  public String getIndexPath() {
    return path;
  }

  private Directory getFSDirectory() {
    Directory ret;
    File file = new File(path);
    try {
      ret = new SimpleFSDirectory(file);
      return ret;
    } catch (IOException e) {
      Logger.getLogger(Config.class.getName()).log(Level.SEVERE, "getFSDirectory:new NIOFSDirectory(file):" + "FS is RAM", e);
    }
    return new RAMDirectory();
  }
}