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Udi has written about How to create fully encapsulated Domain Models in the past (make sure to read the comments) and has further refined this approach in one of his latest articles.

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  • http://www.elegantcode.com Jarod

    1 for the second group. Aside from domain events, I have also seen some nice approaches using a domain service interface, and then having the domain service call out to the infrastructure.

    public class DomainWidget
    {
    public void Do(IDomainService domainService)
    {
    domainService.ThisMayHitAnInfrastructureService(this.SomeGoodData);
    }
    }

    I guess I would still call this decoupled?

  • http://elegantcode.com Jan Van Ryswyck

    Its the eternal discussion and blurred line between when to choose between interfaces and events. Both are indeed decoupled. I like events because then I don’t have to pass a reference to an interface. Its a matter of taste I guess.