[hibernate-dev] Introducing a "none" BytecodeProvider

[Steve Ebersole]

We need to keep it working without enhancement, bugs or not


On Thu, Oct 18, 2018, 8:27 AM Guillaume Smet <guillaume.smet at gmail.com>
wrote:

> Hi,
>
> On Thu, Oct 18, 2018 at 1:33 PM Sanne Grinovero <sanne at hibernate.org>
> wrote:
>
> > > Regarding "BasicProxyFactory", Guillaume and I had to fight with this
> > think a few weeks ago, I think. If I remember correctly, it's used in
> > particular to instantiate abstract classes (!) during bootstrap. It seems
> > to be needed when copying data around from an object to another in
> > particular; maybe when the type of an @Embedded property is abstract?
> > Someone else probably knows more. All I can say is it made some tests
> fail
> > some time ago, so you can try making it throw exceptions and run the
> tests
> > that fail in debug mode, to see why it's useful exactly.
> >
> > Thanks for the hint.
> >
> > I had found some similar clues, and I'm thinking to just limit its
> > applicability to models which don't have similar needs: in a second
> > phase we could look at creating the necessary bytecode to handle these
> > corner cases as well by having the build time enhancement generate the
> > additional support classes.
>
>
> All I can say is that it's useful in some corner cases. If I remember
> correctly, Yoann is right about abstract @Embedded properties.
>
> Creating the classes at enhancement time could be a possibility but I'm not
> sure we have all the information required to do that when we enhance the
> entities.
>
> I think it goes without saying but we still need to have ORM working
> without enhancement, considering how many bugs we have related to enhanced
> classes.
>
> --
> Guillaume
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