Hibernate tools

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Steve Sobol - 07 Jul 2005 20:21 GMT

I'm looking into the Hibernate O/R library to potentially cut down on the
time required to develop database-backed applications.

The concepts are simple enough to understand, but setting up all the files
seems a little time-consuming.

Assuming I have a SQL database set up already, are there any tools that will
allow me to generate a schema *and* the relevant class files using the
database structure and a hibernate.cfg.xml? It appears from the Hibernate
docs that the tools provided with Hibernate will only generate a schema.

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Sebastian Scheid - 07 Jul 2005 20:31 GMT

> I'm looking into the Hibernate O/R library to potentially cut down on the
> time required to develop database-backed applications.
[quoted text clipped - 7 lines]
> Hibernate docs that the tools provided with Hibernate will only generate a
> schema.

There is a Hibernate plugin for Middlegen that generates the mappings files
from an exisitin database. And hbm2java generates the Jaca sourcefiles from
the mapping.

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Sebastian Scheid - 07 Jul 2005 20:38 GMT

>> I'm looking into the Hibernate O/R library to potentially cut down on the
>> time required to develop database-backed applications.
[quoted text clipped - 11 lines]
> files from an existing database. And hbm2java generates the Java
> sourcefiles from the mapping.

Sorry, didn't have my keyboard under control and sent the post uncomplete.

Here is the Link
http://www.hibernate.org/256.html

And tried it and it works fine.

There are the new Hibernate Tools 3.0 which are still alpha
http://www.hibernate.org/255.html .
These are supposed to do this job, too. I did not try them.

Regards
Sebastian

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Steve Sobol - 07 Jul 2005 20:41 GMT

> There is a Hibernate plugin for Middlegen that generates the mappings files
> from an exisitin database. And hbm2java generates the Jaca sourcefiles from
> the mapping.

Bingo! hbm2java is what I wanted; I just couldn't remember the name of the
tool. Thanks :)

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Gerbrand van Dieijen - 09 Jul 2005 18:07 GMT

Steve Sobol schreef:

> I'm looking into the Hibernate O/R library to potentially cut down on
> the time required to develop database-backed applications.
[quoted text clipped - 7 lines]
> Hibernate docs that the tools provided with Hibernate will only generate
> a schema.

I use JDOGenie, a JDO implementation for ti, and I'm quite satisfied
with it.
It's not Hibernate, but it is an O/R mapping. JDO is a Java-standard.
You can use JDOGenie to generate a databaseschema for your database.
Also, when your objects are changed (new attributes), you can use
JDOGenie to generata a update-sql file. This can be very useful for
upgrading.

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