Re: [hibernate-dev] Programmatic entity mapping API
Of course you pick the easy case to illustrate :) A single entity with
nothing but basic attributes or self-referential associations is going to
be relatively simple. The trickier stuff is adding 2 entities with
association between them, "property-ref" FKs, etc. Then your fluent API is
not so fluent.
Overall I can see the utility of this but:
1. I'm not sure your intention here with exposing this from Session, but
a huge -1 to in any way allowing this even after the SessionFactory is
built.
2. Related to this, I can definitely see exposing this to build the
boot-time model as in the org.hibernate.mapping package - but not so much
the runtime model. Ultimately as we move to Jandex for describing the
boot-time model specifically I can see this API building those structures.
3. Not a high priority for me. In fact between 6 and then the Jandex
work I mentioned, I do not foresee having time to work on this
On Tue, Oct 24, 2017 at 6:36 AM Alessio Stalla <alessiostalla(a)gmail.com>
wrote:
That would be great for framework developers as well.
Il 24 ott 2017 12:01, "Gunnar Morling" <gunnar(a)hibernate.org> ha
scritto:
> Anyone with thoughts on this? To elaborate, here's what I have in mind:
>
> EntityMapping mapping = session.addEntityMapping();
> mapping.entity( Person.class )
> .table( "PERSONS" )
> .property( "personId" )
> .id()
> .strategy( Strategy.IDENTITY )
> .property( "phoneNumbers" )
> .oneToMany()
> .mappedBy( "person" )
> .property( "favouriteColor" )
> .converter( ColorConverter.class );
>
> I'm curious whether others think that'd be useful or not.
>
> Vlad, perhaps you have any insights from the field?
>
> Cheers,
>
> --Gunnar
>
>
>
>
> 2017-10-13 21:21 GMT+02:00 Gunnar Morling <gunnar(a)hibernate.org>:
>
> > Hi all,
> >
> > This has crossed my mind for a few times: should we provide a
> programmatic
> > API in Hibernate ORM for mapping entities, as an alternative mapping
> > definition source to annotations and XML? I.e. something similar to the
> > programmatic mapping APIs we have in Hibernate Validator and Search.
> >
> > It'd probably be a fair bit of work (though giving lots of fun with API
> > design), but I can see how it could be appealing to folks preferring
> > API-style ways of configuring their stack, which seems more and more en
> > vogue these days. Using lambda expressions would be attractive
especially
> > when it comes to plugging in custom behaviours, e.g. for value
> generators.
> >
> > Any thoughts?
> >
> > --Gunnar
> >
> >
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