LogicBuilder.Domain

The LogicBuilder.Domain project provides foundational classes for building domain models in a layered architecture pattern.

Overview

This project contains the BaseModel abstract class, which serves as the base class for all domain model entities in the application layer. Domain models represent business entities and logic, distinct from data persistence concerns.

Key Components

BaseModel

An abstract base class implements the IBaseData interface which all domain model entities should implement.

Features:

• EntityState Property: Tracks the state of the entity (Unchanged, Added, Modified, Deleted) using the EntityStateType enum from LogicBuilder.Data
• Change Tracking: Enables generic CRUD operations in LogicBuilder.EntityFrameworkCore.SqlServer without coupling domain models directly to Entity Framework

Usage in LogicBuilder.EntityFrameworkCore.SqlServer

The BaseModel class is central to the repository pattern implementation:

1. ModelRepositoryBase: Generic repository operations require models to implement IBaseModel (constraint: where TModel : IBaseModel)
2. State Management: The EntityState property is mapped from domain models to Entity Framework's EntityState during save operations
3. Graph Operations: Enables tracking of complex object graphs for insert, update, and delete operations through the SaveGraphAsync methods

Design Pattern

This follows a layered architecture approach:

• LogicBuilder.Domain (Domain Layer): Business entities implementing IBaseModel
• LogicBuilder.Data (Data Layer): Database entities implementing IBaseData
• AutoMapper: Translates between domain models and data entities
• LogicBuilder.EntityFrameworkCore.SqlServer: Provides generic repository pattern supporting both layers

By inheriting from BaseModel, your domain entities gain state tracking capabilities while remaining independent of Entity Framework infrastructure concerns.