DDD Entities making use of Services

Question

I have an application that I\'m trying to build with at least a nominally DDD-type domain model, and am struggling with a certain piece.

My entity has some business logi

Answer 1

You've actually struck on a question that there has been quite a bit of discussion on. There are believers on both sides of the tracks so you need to decide for yourself what makes the most sense.

Personally I don't have my entities use services as it creates a whole lot of work around the "How do I cleanly get services into my entities?" question.

It looks to me like CalculateFinancialGains() is more of a service level call. This does lead to Ticket being very anemic but I assume it has other behavior? And if it doesn't that's probably a smell...