code: public final Command createFlushAllCommand(CountDownLatch latch, int exptime, boolean noreply) {
      return new TextFlushAllCommand(latch, exptime, noreply);
    }
docs: /*
  (non-Javadoc)
  
  @see net.rubyeye.xmemcached.CommandFactory#createFlushAllCommand(java.util
  .concurrent.CountDownLatch)