Tuesday, August 30, 2011

Re: HTML5 local object persistence for GWT

Thank you for this review.
Indeed, the coverage of usually used object reference semantics is
crucial.
On the other hand, this is a long way to go...
Consider for example the complex semantics to eager and lazy loading
of references.

My direction would be:
Try allowing List and arrays as to-many field types.
Follow objectify in that Keys as values mean lazy loading (which then
has to be done manually).
Try allowing real references, but only with eager semantics - then
taking properly care of circular references.

On Aug 30, 2:15 pm, "J.Ganesan" <j.gane...@datastoregwt.com> wrote:
> Congratulations. The simplicity is striking. This library really gives
> an object orientation tinge to persistence. I believe this library is
> a natural extension to GWT programming model.
> It is useful for those projects not demanding a deep object graph. Of
> course, when this library is extended to take care of
> java.util.Collections and of circular references, it will be lot more
> useful.
>
> J.Ganesanwww.DataStoreGwt.com
>
> On Aug 29, 9:24 pm, joergviola <joerg.vi...@googlemail.com> wrote:
>
>
>
>
>
>
>
> > Hello,
> > I want to announce a new lib for HTML5 gwt apps:
>
> >https://code.google.com/p/mobile-objects/
>
> > Using it, you can directly persist objects to local HTML5 storage or
> > database, whatever is available.
> > Moreover, synchronisation to a server is possible, currently to GAE using
> > objectify.
>
> > GWT generators are used to generate class descriptors for the persistent
> > classes.
> > At runtime, these descriptors are used to create JSON for storage or an SQL
> > for database persistence.
>
> > The persistence model currently is quite simple and modelled after the
> > objectify API.
>
> > I would be happy if someone just could check the concept and tell whether
> > this lib would be useful.
>
> > Thanks a lot, Joerg

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