HftRingBuffer<Order> ringBuffer = new HftRingBuffer<>(Order.class, 1024); Order order = new Order(); ringBuffer.put(order); Order order = ringBuffer.take(); HftRingBuffer<Order> ringBuffer = new HftRingBuffer<>(Order.class, 1024); HftHashMap<Long, Order> hashMap = new HftHashMap<>(Long.class, Order.class, 1024); hashMap.put(1L, order); Order order = hashMap.get(1L); HftHashMap<Long, Order> hashMap = new HftHashMap<>(Long.class, Order.class, 1024);