public LocalParallelTransactionExecutingService(ITransactionGrouper grouper,
                                                 ITransactionResultService transactionResultService,
                                                 ILocalTransactionExecutingService plainExecutingService)
 {
     _grouper = grouper;
     _plainExecutingService    = plainExecutingService;
     _transactionResultService = transactionResultService;
     EventBus = NullLocalEventBus.Instance;
     Logger   = NullLogger <LocalParallelTransactionExecutingService> .Instance;
 }