Hi David,

Can mapper handle problems like dirty read/write of record? If user A
loads record, user B loads record, user B updates record, user A
updates record, user B's changes lost. If I use mapper how would I
need to solve this problem? Add a version number column?

Thanks, Philip


On Dec 12, 12:28 am, "David Pollak" <[email protected]>
wrote:
> Derek,
>
> If we add a jpa module, then we'll be supporting two legacy persistence
> mechanisms (mapper and lift-jpa) once the record stuff is up to snuff.  Plus
> there'll be a ton of confusions over stuff.  If you want to do a JPA
> archetype, that's cool, but I'd strongly prefer not to have more legacy to
> support.
>
> Thanks,
>
> David
>
> On Thu, Dec 11, 2008 at 7:10 AM, Derek Chen-Becker 
> <[email protected]>wrote:
>
> > I'd like to go ahead and add in some of the JPA scaffolding as a module
> > under lift. While we're striving to provide a backend for Record that
> > integrates with JPA, even that backend will want to use some Scalafied
> > versions of the JPA classes. On top of that, if people want to use JPA
> > without Record it would be available to them. In other words, this would be
> > ancillary to, not a replacement of, Record. The module can be called
> > "lift-jpa" and the classes in question woulc site under net.liftweb.jpa. Any
> > objections?
>
> > Derek
>
> --
> Lift, the simply functional web frameworkhttp://liftweb.net
> Collaborative Task Managementhttp://much4.us
> Follow me:http://twitter.com/dpp
> Git some:http://github.com/dpp

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