One more question. In my first quest, MetaDataAdapter have a func named notifyUserMessage, will trigger when call sendMessage() from client. In case have a million message send to same time. Everything still work fine because Lightstreamer Kernel will handle it before trigger notifyUserMessage. In case am using Generic Data Adapter, and I no have MetaDataAdapter, how to have a func like this ? I dont want to handle backpressure or any exception from network or client, I want a simple method like notifyUserMessage in MetaDataAdapter, but in DataAdapter, and Lightstreamer will handle all left