Tuesday 05 February 2008 19:24:16 Alexandru Popescu ☀ написав:
> Oops... it looks like I've left something unfinished...
>
> On Feb 5, 2008 7:21 PM, Alexandru Popescu ☀
>
> <[EMAIL PROTECTED]> wrote:
> > (to Alex Lukin):
> > > 2) JPA is based on relational approach and does not work properly with
> > > tree-like structures we use often with JCR
> >
> > That's partly correct. Indeed the theory of relational storage and
> > tree-based storage are radically different.
>
> However, I do believe that part of the JPA annotations and moreover
> API can be applied to any Object to X mapping solutions. And as I
> said: it doesn't need to be 100% pure JPA ;-).
Well, may be. But JPA is not ideal solution for java persistance. It does not
handle right things like this:
class MyNode {
List<MyNode> subNodes;
....
}
The nature of JCR is tree. The naure of tree processing is recursion.
JPA does not have any word about it. It has a lot of words about relational
stuff instead.
So use of JPA with JCR may be very misleading.
--
SY, Alex Lukin
RIPE NIC HDL: LEXA1-RIPE
