Repositories for Aggregate Root Only!

I have Category and Product entities. The relationship between the two is one to many. Since, Category is aggregate root I think I should only make a single repository ICategoryRepository which should also handle products开发者_如何学Python.

Ideas?

I'm without my copy of Domain Driven Design by Evans at the moment, which is where I'd turn for the definitive answer, but this reference at dddstepbystep states that:

Within an Aggregate there is an Aggregate Root. The Aggregate Root is the parent Entity to all other Entities and Value Objects within the Aggregate.

A Repository operates upon an Aggregate Root

So yes, going by this definition, your Category Repository should be responsibly for persisting all entities within the Category aggregate.

That said though, my question from my comment still stands - are you sure that Category really is a useful aggregate root? The fact that you are asking this question about persisting products indicates that you often consider them seperate from their Category, or at least would like to be able to deal with some product aside from their category.