abp-ddd

Aggregate roots in ABP define consistency boundaries and manage child entities. You implement them by encapsulating behavior within the root, ensuring child entities are only modified through the aggregate root's public methods to enforce invariants.

Creating a rich domain model involves building ABP entities with private setters and public methods. This enforces invariants and encapsulates business logic, ensuring your entities contain behavior rather than acting as simple data containers.

Use domain services in ABP when business logic spans multiple aggregates and does not naturally belong to a single entity. Aggregate roots should handle internal state and child entity consistency, while domain services coordinate cross-aggregate operations.

Domain events in ABP utilize local and distributed events to handle inter-module communication. You publish events from your aggregates or services to decouple modules, ensuring that domain logic remains isolated and maintainable.

Common repository anti-patterns include over-querying, returning IQueryable directly, and placing business logic inside repositories. ABP repositories should strictly handle data access, keeping domain logic within aggregate roots and domain services.

Yes, understanding C# and the ABP.IO ecosystem is required. This guidance focuses on implementing DDD patterns specifically within ABP framework conventions, addressing entities, repositories, and domain services for enterprise software.