Domain Driven Design: Aggregate roots with large collections

Question

I was wondering how I would handle aggregate roots that contain collections with a lot of entities.

Like:

public class AggregateRoot
{
    public ICollection<Child> Children { get; set; } // 10.000 entities
}

How would I query the child collection to get specific children? I am using Nhibernate btw.

score 1 · Accepted Answer · edited May 23 '17 at 12:04

1

You can use Nhibernate's collection filters for this, see this similar question for examples.

edited May 23 '17 at 12:04

Community

answered Oct 18 '10 at 13:41

DanP

1

And this should be implemented in the Repository ( aggregateRootRepository.getChildren(0, 100) ). – Kdeveloper Oct 23 '10 at 22:13
3

@Kdeveloper: Yes, that's the general idea. Although when situations like this come up, you need to ask yourself "Am I missing the real aggregate root?" – DanP Oct 24 '10 at 18:33

1 Answers1