Domain Objects and Services

Question

In this question someone replies \"You never let the domain object implementations call services by themselves!\". Is this statement a hard fast rule of DDD or does it depen

Answer 1

I think it's better not to call repositories or services from entities or value objects, but sometimes it's necessary, for example, if an entity has to return other entity which should be loaded from database but it cannot navigate to it using object graph. Then dependency inversion principle comes to help, which means that entities and value objects depend on interfaces of services and repositories and not on implementations.