class TransactionAdmin {

  private void printUsage() {
    String programName = TransactionAdmin.class.getSimpleName();
    String spaces = "     ";
    List<String> options = Lists.newArrayList();
    options.add(join("Usage: "));
    options.add(join(spaces, programName, OPT_TRUNCATE_INVALID_TX, "<tx1,tx2,...>"));
    options.add(join(spaces, programName, OPT_TRUNCATE_INVALID_TX_BEFORE, "<time in secs>"));
    options.add(join(spaces, programName, OPT_GET_INVALID_TX_SIZE));
    
    String usage = Joiner.on(System.getProperty("line.separator")).join(options);
    err.println(usage);
  }

  public  TransactionAdmin(PrintStream out, PrintStream err);

}