public TickerInfoService(ITickerInfoRepository tickerInfoRepository, BBOMemoryImage bboMemoryImage)
 {
     _tickerInfoRepository = tickerInfoRepository;
     _bboMemoryImage       = bboMemoryImage;
 }
 public TickerInfoCalculation(ITickerInfoRepository tickerInfoRepository, ITradeRepository tradeRepository, IPersistanceRepository persistanceRepository)
 {
     _tickerInfoRepository  = tickerInfoRepository;
     _tradeRepository       = tradeRepository;
     _persistanceRepository = persistanceRepository;
 }