Hi,

In one of our projects, we developed a tool that generates hibernate mapping files from uml models.

You may be interested in it.

http://jroller.com/page/unsem?entry=mod ... t_with_ibm

Ünsem

very interesting - is it open source or something you could think of contributing to the hibernate tools project ?

hmmm....where does one get that UML view...the UML2 project seem to only be the core model...

hi max,

it is not open source, and it is not internationalized yet. but i am thinking of making this tool available.

what is the procedure to contirubting the tools project?

i couldn't get the point. what do you mean by UML view?

the diagram is a class diagram from a UML2 model. it is a core model with an applied Hibernate profile. profile is installed with the plugin.

standard procedure is to put it in jira and then we take it from there.

I was just wondering where you got that uml picture from at your blog....until i actually installed UML2 from eclipse i thought that were included in UML2 plugin but can't find it.

i'll think about that.

you need RSA or IBM Rational Modeler.

and they are both "insanely-much-money-for-a-pretty-picture"-software, correct ? :)

Well, I don't agree. I can not think of myself without these tools. But it is not the topic of this forum, right?



I have checked UML2 project again after your question. It doesn't have a visual desginer for UML models.

The plugin uses UML2 metamodel of eclipse. I believe that it may be possible to generate the mappings for those tools that use the UML2 metamodel. Hence broader range including open source would be covered. I need to work on that. Thanks for the insight.

no no, i were just hoping that there were a visual representation of the uml2 model available which could allow me to click on a class and specify the additional properties...but apparently there is not so hard to use for people who does not have access to RSA or IBM Rational Modeler.

This is interesting to me, but not clear. I have for years begun all projects with the UML process. Now in my current contract, they are used to creating an RDBMS first and then creating java objects and hibernate mappings via hibernate tools, whereas in my case, I have the class diagram and base code already generated.

I would assume you also have a class diagram in Rational or whatever you use. Why then, would you spend all the time creating a UML2 profile (based on this article I just read: http://www.eclipse.org/uml2/.

Is there not a way to go from an XMI file instead?

Note: I use ArgoUML to generate my class diagrams.
http://argouml.tigris.org/

Brian Burridge

Andromda provides a xmi to hbm.xml plugin.
Middlegen has a db to xmi plugin.

There are a few tools in this space but I am unable to provide a guide on the quality of them.

I'm not sure if you are familliar enough with it to answer, but do you know if in the case of Andromda, where does the RDBMS creation come in? Is it created with the hbm.xml, or do you create the RDBMS first, and then use Andromda to map from RDBMS to Object?

Brian

just starting to use androMDA to generate hbm.xml-Files, DAOs etc. ...
but there's a "schema2xmi-cartridge(?)" which you can use ...
Then open the XMI in your prefered UML-Tool etc.

Biggest problem i've encountered was to learn how to model "right" that andromda generates everything correct ... and sometimes not really good templates (in my opinion). But nothing that cannot be handled.

And everything is either open source or available in a community edition. Perfect for the beginning.

I wouldn't want AndroMDA to create my UML for me. I got through the full Rational process resulting in a class diagram that is properly built, and I want to stick with it. But I need to then be able to go from that class diagram to have a db schema and a hibernate mapping between the object and the db.

In the past I have always created the db schema myself. I was just curious if AndroMDA could create the db schema as well as the object mapping.

Brian N. Burridge