I've been doing some reading lately and one thing that I've come across was this article about the Anaemic Domain Model from Martin Fowler. I know, it's old, but somehow very actual in Java world. So I'm trying to move towards a more domain-driven design. One option would be to go with the Active Record model. However, I don't really like the current implementation it has in Scala. It completely couples the domain objects with the persistence type (not so bad in most cases but I have a project where I need to store something both in a RDB and in Mongo). Then I ran across this article about Spring, Hibernate and Scala and though here too the domain object is coupled with the JPA trait, I noticed how he uses Spring to inject a Notification Service. Can't the same mechanism be used to inject a transparent DAO interface? Have you seen this used anywhere? Any thoughts on the idea?
Scala, Spring and ActiveRecord with decoupled persistence
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You should have a look at Spring-Data, this project provides some kind of abstraction over different data storages.