Type Definitions

Reference any Types you have defined in your codebase inside your designers in Intent Architect by using Type Definitions.

As an example let's assume you're building an Orders application in .NET and you would like to introduce an Enum Country to your Address Entity as an Attribute in your Domain designer, however in your codebase there already is a Country Enum that is quite lengthy due to the 249 countries defined in it. Trying to reproduce it in your designer is time consuming.

namespace OrderApplication.Domain.Enums;

public enum Country
{
    [Display(Name = "Afghanistan", ShortName = "AF", Description = "AFG:004")]
    Afghanistan = 4,
    
    [Display(Name = "Albania", ShortName = "AL", Description = "ALB:008")]
    Albania = 8,
    
    [Display(Name = "Algeria", ShortName = "DZ", Description = "DZA:012")]
    Algeria = 12,
    
    [Display(Name = "American Samoa", ShortName = "AS", Description = "ASM:016")]
    AmericanSamoa = 16,
    
    [Display(Name = "Andorra", ShortName = "AD", Description = "AND:020")]
    Andorra = 20,

    // ... Additional countries omitted for brevity ...
    
    [Display(Name = "United Kingdom", ShortName = "GB", Description = "GBR:826")]
    UnitedKingdom = 826,
    
    [Display(Name = "United States", ShortName = "US", Description = "USA:840")]
    UnitedStates = 840,
    
    [Display(Name = "Zimbabwe", ShortName = "ZW", Description = "ZWE:716")]
    Zimbabwe = 716
}

Rather than redefining it in your Domain designer, you can introduce this Type without defining a whole Enum element. Right click on the Domain package and select New Type.

Perform the following steps on this new Type:

• Name it Country.
• Right click on the type and select Apply Stereotype.
• Select the C# stereotype.
• In the C# stereotype properties specify the Type to be Country, the Namespace to be OrderApplication.Domain.Enums and ensure Is Primitive is checked.

In the Address Entity, replace the Country Attribute's type from string to Country.

Now when the code gets generated you will see the Address Entity class looking like this:

using Intent.RoslynWeaver.Attributes;
using OrderApplication.Domain.Common;
using OrderApplication.Domain.Enums;

[assembly: IntentTemplate("Intent.Entities.DomainEntity", Version = "2.0")]

namespace OrderApplication.Domain.Entities;

public class Address : IHasDomainEvent
{
    public Address()
    {
        Line1 = null!;
        Line2 = null!;
        City = null!;
        PostalCode = null!;
    }

    public Guid Id { get; set; }

    public string Line1 { get; set; }

    public string Line2 { get; set; }

    public string City { get; set; }

    public string PostalCode { get; set; }

    public Country Country { get; set; }

    public List<DomainEvent> DomainEvents { get; set; } = [];
}

The Country type is now the return type for the Country property and the namespace OrderApplication.Domain.Enums has been added as a using directive for referencing that type.