/// <summary>
        ///异步验证
        /// </summary>
        public static async Task DoValidationAsync(IEmployeeRespository employeeRespository, Employee employee, string validatorType)
        {
            var employeeValidator = new EmployeeValidator(employeeRespository);
            var validatorReresult = await employeeValidator.DoValidateAsync(employee, validatorType);

            if (!validatorReresult.IsValid)
            {
                throw new DomainException(validatorReresult);
            }
        }
        /// <summary>
        ///异步验证
        /// </summary>
        public static async Task DoValidationAsync(IEmployeeRespository employeeRespository, IEnumerable <Employee> employees, string validatorType)
        {
            var employeeValidator = new EmployeeValidator(employeeRespository);
            var domainException   = new DomainException();

            foreach (var employee in employees)
            {
                var validatorReresult = await employeeValidator.DoValidateAsync(employee, validatorType);

                if (!validatorReresult.IsValid)
                {
                    domainException.AddErrors(validatorReresult);
                }
            }

            if (domainException.ValidationErrors.ErrorItems.Any())
            {
                throw domainException;
            }
        }