public static bool TryCreate(string postalCode, out PostalCode result, out string failureReason)
{
var specification = new PostalCodeSpecification();
if (specification.IsSatisfiedBy(postalCode))
{
result = new PostalCode(postalCode);
failureReason = string.Empty;
return true;
}
result = null;
failureReason = specification.GetReasonsForDissatisfactionSeparatedWithNewLine();
return false;
}
public static PostalCode Create(string postalCode)
{
if (postalCode == null)
{
throw new ArgumentNullException("postalCode");
}
var specification = new PostalCodeSpecification();
if (specification.IsSatisfiedBy(postalCode))
{
return new PostalCode(postalCode);
}
throw new ArgumentException(string.Format("Postal code '{0}' does not satisfy specification.", postalCode), "postalCode");
}