Tolitech.Domain 1.0.0-preview.8

Tolitech.Domain

Overview

Tolitech.Domain provides the core abstractions and primitives for building robust domain layers in .NET applications, following Clean Architecture principles. It includes base classes and interfaces for Entities, Aggregates, Domain Events, Smart Enums, and Repositories.

Features

• Entities & Aggregates: Abstract base classes and interfaces for domain modeling.
• Domain Events: Interfaces for event-driven domain logic.
• SmartEnum: Type-safe, extensible enums with custom logic.
• Repositories: Generic repository interfaces for persistence abstraction.
• Validation: Entity validation via the Result pattern.

Installation

Add a reference to the Tolitech.Domain project or install via NuGet:

# .NET CLI
 dotnet add package Tolitech.Domain

Usage

Entity & Aggregate Example

public class ProductId : IEntityId<Guid>
{
    public Guid Value { get; init; }
    public ProductId(Guid value) => Value = value;
}

public class Product : Entity<ProductId>
{
    public string Name { get; set; }
    public Product(ProductId id, string name) : base(id) => Name = name;
}

public class Order : Aggregate<Guid>
{
    public List<Product> Products { get; set; } = new();
    public Order(Guid id) : base(id) { }
}

SmartEnum Example

public class CreditCard : SmartEnum<CreditCard>
{
    public static readonly CreditCard Standard = new(1, "Standard", 0.0);
    public static readonly CreditCard Premium = new(2, "Premium", 0.05);
    public static readonly CreditCard Platinum = new(3, "Platinum", 0.10);
    public double Discount { get; }
    private CreditCard(int value, string name, double discount) : base(value, name) => Discount = discount;
}

// Usage
var platinum = CreditCard.FromName("Platinum");

Domain Event Example

public class ProductCreatedEvent : IDomainEvent
{
    public ProductId ProductId { get; }
    public ProductCreatedEvent(ProductId productId) => ProductId = productId;
}

Repository Interface Example

public interface IProductRepository : IRepository<Product> { }

Validation Example

var product = new Product(new ProductId(Guid.NewGuid()), "Laptop");
var result = Tolitech.Results.Result.OK();
bool isValid = product.IsValid(result);

Notes

• Designed for extensibility and integration with other Tolitech libraries.
• Follows Clean Architecture and DDD best practices.