Jeroen and I talked were also talking about this (he and I are using the
JDO object store in anger on a project we're working on together).  I do
suspect that it would be possible to "teach" DataNucleus (the underlying
JDO implementation) about some of Isis' annotations and conventions, thus
reducing the amount of stuff.

However, we both decided that would be a bad idea.  After all, the JDO
community is that much larger (Google app engine, for example) and more
established than our own.  And hopefully some of those users will come
across Isis and see its support for JDO, and think about trying it out.  It
wouldn't be a good experience if they have to unlearn hard-learnt JDO
annotations/conventions and try to figure out how Isis interacts with JDO.

On the other hand, if there are semantics that we can infer into Isis from
JDO annotations, then that direction is just fine.  For example,
@javax.jdo.Embedded annotation is basically the same as the Isis
@Aggregated annotation, and so we infer the AggregatedFact from it.

Dan

On 6 September 2012 18:18, Kevin Meyer - KMZ <[email protected]> wrote:

> Now you know why I like the sql-os so much! No annotations, just a
> few occaisional overrides in the properties file..
>
> I'm slowly reconstrucing my build enviroment (I have recently moved
> into temporary accommodation).. should able to make some progress
> soon.
>
> Regards,
> Kevin
>
> On 6 Sep 2012 at 14:07, [email protected] wrote:
>
> > Do I really have to place all those JDO annotations in my model ?  :(
> >
> > Regards,
> >
> > Minto
> >
> > Quoting Dan Haywood <[email protected]>:
> >
> > > Yes, it's on the Todo list to provide some docs.
> > > The quickstart app is configured for JDO, though, so you could stay
> there.
> > >
> > > More detail later today.
> > > Dan
> > >
>
>

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