[hibernate-dev] HBM migration suggestions

[Steve Ebersole]

Do you have a tool to convert from orm.xml to annotations?  The reason I
ask is that we are pretty far along in the development of a hbm.xml ->
orm.xml tool, with the caveat that the orm.xml is an "extended" form of the
JPA orm.xml weaving in Hibernate-specifics.  So it would depend on whether
any hbm-specific features are used (property-ref being the biggest problem).

That tool with be completed as part of 7.0, but like I said it is already
pretty far along.


On Mon, Oct 10, 2016 at 8:27 AM Sanne Grinovero <sanne at hibernate.org> wrote:

> I remember needing something like that and did it by having the legacy
> app create the schema in the RDBMs, then use reverse engineering to
> pojos. This was during the "Seam 2 era" so quite some time ago.. not
> sure how tools evolved since then.
>
> You'll need some manual tuning during both steps of course, but since
> I could tune & extend both the naming strategies (via code extensions)
> and the template files we got a quite complex application (600+
> entities) converted in a couple of days.  AFAIR my best learner lesson
> was to be ready to repeat it all (script it) multiple times, to prefer
> tune the templates and naming strategies iteratively over fixing
> things by hand.
>
>
>
> On 10 October 2016 at 12:58, Max Rydahl Andersen <manderse at redhat.com>
> wrote:
> > hibernate tools can do it for the basic cases - but it haven't been
> > updated in a long while, but you can customise the templates if you find
> > issues.
> >
> > /max
> >
> >> Hi guys,
> >> We have 200-ish hbm files we would like to convert to annotated
> >> classes. Is there any tool you guys recommend to tackle such a project
> >> ?
> >>
> >> Thanks in advance for your time,
> >>
> >> Noel
> >>
> >> _______________________________________________
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> >
> >
> > /max
> > http://about.me/maxandersen
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