11:52 a.m.
Hello,
Envers is an entity versioning (or: auditing) library for JPA/
Hibernate, which I've been developing for the last half year.
I was presenting Envers on yesterday's R&D meeting, maybe some of you
have been there.
If not, here are the slides:
http://www.jboss.org/files/envers/presentations/envers_rd.pdf
And here's the project page: http://www.jboss.org/envers/
Some people suggested that there may be some interests from the
Hibernate Team in Envers. I also get asked quite frequently if I've
talked to the "Hibernate guys" :).
So if you've got any questions, or suggestions for the future
direction of Envers, please write. Or any other comments, of course.
--
Adam
2:44 a.m.
Hello,
this is looking very promising, congratulations for the slides too
they made me understand it well without needing explanations.
I am seeing many similarities with Hibernate Search,
maybe it is possible to reuse the annotations (and/or code)
of it for your upcoming "support for persistent collections"...
just thinking that both teams (Envers and Search) have probably
written much "framing" and startup code the same way.
Also Emmanuel has added "autoregistration" of listeners
for when Search is on classhpath during the EntityManager
factory startup; IMHO it would be nice to register this one
in the same way.
Sanne
2008/9/10 Adam Warski <adam(a)warski.org>:
Hello,
Envers is an entity versioning (or: auditing) library for JPA/Hibernate,
which I've been developing for the last half year.
I was presenting Envers on yesterday's R&D meeting, maybe some of you have
been there.
If not, here are the slides:
http://www.jboss.org/files/envers/presentations/envers_rd.pdf
And here's the project page: http://www.jboss.org/envers/
Some people suggested that there may be some interests from the Hibernate
Team in Envers. I also get asked quite frequently if I've talked to the
"Hibernate guys" :).
So if you've got any questions, or suggestions for the future direction of
Envers, please write. Or any other comments, of course.
--
Adam
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6:16 a.m.
Hello,
this is looking very promising, congratulations for the slides too
they made me understand it well without needing explanations.
Thanks :)
I am seeing many similarities with Hibernate Search,
maybe it is possible to reuse the annotations (and/or code)
of it for your upcoming "support for persistent collections"...
just thinking that both teams (Envers and Search) have probably
written much "framing" and startup code the same way.
Code similarities
are probably quite easy to see, as before writing
Envers I looked through Hibernate, Validator and Search code :).
The startup code is indeed similar, but then it diverges (as these are
two librarie for different purposes). When versioning relations, I
have to change the original mapping to include the revision number
etc, so that complicates things.
Also Emmanuel has added "autoregistration" of listeners
for when Search is on classhpath during the EntityManager
factory startup; IMHO it would be nice to register this one
in the same way.
As far as I remember, the autoregistration is done by checking if
the
listener classes (their names are simply written there as String-s)
can be loaded by the current class loader. So adding a similar feature
for Envers would require changing Hibernate code. But maybe that
changed :). That's really not a question for me.
--
Adam
10:13 a.m.
On Sep 11, 2008, at 07:16, Adam Warski wrote:
>
> Also Emmanuel has added "autoregistration" of listeners
> for when Search is on classhpath during the EntityManager
> factory startup; IMHO it would be nice to register this one
> in the same way.
As far as I remember, the autoregistration is done by checking if
the listener classes (their names are simply written there as String-
s) can be loaded by the current class loader. So adding a similar
feature for Envers would require changing Hibernate code. But maybe
that changed :). That's really not a question for me.
We need to discuss a generic mechanism in Hibernate 4
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6271
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3 comments
3 participants
participants (3)
-
Adam Warski -
Emmanuel Bernard -
Sanne Grinovero