On Tue, Mar 24, 2009 at 1:18 AM, Alex <a...@liivid.com> wrote:

>
> I decided against JPA because you lose a lot of framework
> functionality which it seems is unfortunately tied to the Mapper
> classes.
>

Mapper is meant primarily to deal with UI and validation, secondarily to
deal with mapping to non-human sources (XML, JSON, and RDBMS).

The hard-coded tie to JDBC, as Derek mentions, will be removed in
Record/Field.


>
>
> On Mar 23, 12:15 pm, saem <saemgh...@gmail.com> wrote:
> > I suggest checking outhttp://www.liquibase.org/
> >
> > It's the best open source database change management tool I've come
> > across to date.
> >
> > On Mar 20, 11:18 pm, Derek Chen-Becker <dchenbec...@gmail.com> wrote:
> >
> > > Well. I think it depends. I know that if you use the hibernate provider
> that
> > > you can set a property to automatically create/update the schema when
> it
> > > runs. You can look at the JPA Demo site in the Lift repo:
> >
> > >http://github.com/dpp/liftweb/blob/794cac5abf6b1ae5502f6321847f6186fc.
> ..
> >
> > > The relevant property is "hibernate.hbm2ddl.auto"
> >
> > > I haven't used TopLink but it appears to have a subset of this
> > > functionality:
> >
> > >http://www.oracle.com/technology/products/ias/toplink/JPA/essentials/.
> ..
> >
> > > The caveat is that with Hibernate it can alter existing tables to match
> > > changes in your entities, but toplink appears to do a drop-then-add,
> which
> > > kind of sucks. I haven't looked at JPOX or any other JPA impls.
> >
> > > Derek
> >
> > > On Fri, Mar 20, 2009 at 7:13 PM, Alex <a...@liivid.com> wrote:
> >
> > > > I'm going through the recently announced book and JPA looks pretty
> > > > attractive.  There is no mention of schema management - e.g. creating
> > > > and modifying tables.  Is there any or is that all done manually?
>
> >
>


-- 
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
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