Is JBoss DNA a Java Content Repository?
Yes and no. Part of JBoss DNA sits on top of JCR repositories and does things that you’d otherwise have to do yourself, and that part really just uses other JCR repositories. One part of JBoss DNA that will look like a JCR repository to client applications is the federation engine, which will construct a live virtual repository from the data in other repositories, data sources, applications, registries, and services.