[hibernate-dev] HBM migration suggestions

[Noel Diaz]

This is great Steve. Can I take at least a sneak-peek into the tool? 

 

    On Monday, October 10, 2016 9:56 AM, Steve Ebersole <steve at hibernate.org> wrote:
 

 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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