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From Dan Haywood <>
Subject Re: Apache Isis Hibernate Persistor
Date Mon, 07 May 2012 17:40:03 GMT
Hi Sudipto,
Thanks for your interest in Isis!

You are right that there was a Hibernate object store for Naked Objects.
 In fact, there have been two: a Hibernate object store for NO 3.0.x (about
4 or 5 years ago now!) and also a JPA Object Store that I wrote for my
book, which also used Hibernate as the underlying ORM.

Unfortunately, the Hibernate license - LGPL - is not compatible with the
Apache Software License, and so we've had to remove these object stores.

However, it is the plan to reimplement the JPA object store with an
implementation that is compatible with ASL - almost certainly the OpenJPA
impl.  The work I've been doing on the OID refactor (see recent posts to
the mailing list) is part of this ... so it's getting closer to the top of
the todo list.

If you're interesting in helping this effort, please join the isis-dev
mailing list (using, and we can
talk further there.


On Friday, 4 May 2012, Sudipto Majumder wrote:

> Hi,
> I downloaded and built the Isis framework (current version in svn is
> 0.3.0-incubating-SNAPSHOT) and ran the quickstart application. I could
> change the object store to point to MySQL using the objstore-sql and it is
> working. Now I am thinking of integrating Hibernate.
> Earlier, I successfully used Hibernate persistor in Native Objects and
> believe it is supported in Isis as well. But I am not getting any doc on
> how to configure.
> Any help will be much appreciated.
> Thanks,
> Sudipto.

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