jackrabbit-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Sandro Boehme <sandro.boe...@gmx.de>
Subject Re: David's Model question : nt:unstructured and SNS
Date Tue, 17 Nov 2009 12:50:06 GMT
Alexander Klimetschek schrieb:
> 2009/11/16 Fabián Mandelbaum <fmandelbaum@gmail.com>:
>> It's simpler than fiddling around with this low-level stuff actually:
>> Just create a DAO to abstract all JCR operations (as you should be
>> doing already)
> (To give my usual opinion about object content mapping and JCR:) If
> you use DAOs this of course is a straight-forward solution (but only
> for the code that uses the DAO layer), but I think that using JCR
> directly is not "low-level" stuff:
> - JCR Node already is like a DAO, and a more flexible one (nt:unstructured)
> - nodetypes can give you validation
> - session (+ transactions) provide all you need for managing the
> object's lifetime and separation into sessions
> - access control, versioning, search etc. are quite high-level IMO, so
> you should use them directly
> I see the point for DAOs only when you really want to be sure that
> application coders can only use the properties you designed for them.
> Or when you have a relational model and are required to map it onto an
> object model, but that's not the case with JCR. An OCM only adds an
> additional layer of code and complexity.
> Just my 2 cents...
> Alex
In my opinion an OCM adds statical type checking and the ability to add 
functionality (e.g. finder methods) to this types.



Sandro Böhme

Systems Development
Project Management

Wir nutzen Technologien, um unsere Kunden glücklich zu machen.
Und uns selbst.

inovex GmbH
Karlsruher Strasse 71
D-75179 Pforzheim
Tel: 07231 31 91-80
Fax: 07231 31 91-91

Sitz der Gesellschaft: Pforzheim
AG Mannheim, HRB 502126
Geschäftsführer: Stephan Müller

View raw message