protected CommandHandler(IUnitOfWorkManager unitOfWorkManager, IAggregateRootRepository aggregateRootRepository)
{
if (unitOfWorkManager == null)
{
throw new ArgumentNullException(nameof(unitOfWorkManager));
}
_aggregateRootRepository = aggregateRootRepository ?? throw new ArgumentNullException(nameof(aggregateRootRepository));
_unitOfWork = unitOfWorkManager.CurrentUnitOfWork();
}