On 13 Oct 2014, at 16:21, Michael Marth <mma...@adobe.com> wrote: >> JCR vs RDBMS >> I come from the RDBMS world and I am pretty new to JCR so I apologize if >> these are dumb questions: >> >> * So far, I have manipulated the JCR API (node, properties, events, >> ...) and was able to cover my basic use cases. >> >> But, in a real application, I need to have OO modelisation and, therefore, >> at some point, have a way to map my business model to JCR nodes (something >> like an ORM). >> >> I found Jackrabbit >> OCM<http://jackrabbit.apache.org/5-with-jackrabbit-ocm.html> but nothing in >> Oak. >> >> Is there something in the pipe ? > > The typical ORM usage where RDB columns are auto-mapped onto Java objects has > shown to be less useful (or needed) in JCR. Hence, I believe all OCM projects > have not been advanced much lately. > For many (even large scale applications) it is totally fine to work on JCR’s > API directly. In cases, where more complex node structures are needed to > model a business entity you can create that object as a POJO, which in turn > uses JCR (without having to add the complexity of auto-mapping properties).
In PHPCR (which is a port of JCR to PHP), we have found that the ODM (APi inspired by Hibernate) has proven very popular. That being said, there were a lot of tricky topics to solve (and still a few up in the air) to adapt things. Especially children collections are tricky to map. We also added native support for i18n into the ODM. http://doctrine-phpcr-odm.readthedocs.org/en/latest/reference/introduction.html regards, Lukas Kahwe Smith sm...@pooteeweet.org
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