code: public void init(RingbufferConfig config, NodeEngine nodeEngine) {
          this.config = config;
          this.serializationService = nodeEngine.getSerializationService();
          initRingbufferStore(nodeEngine.getConfigClassLoader());
      }
docs: Initializes the ring buffer with references to other services, the
  ringbuffer store and the config. This is because on a replication
  operation the container is only partially constructed. The init method
  finishes the configuration of the ring buffer container for further
  usage.
  
  @param config     the configuration of the ring buffer
  @param nodeEngine the NodeEngine