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Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
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Hi Philipp,
There has been some work on providing a OSGI-service-based JPA approach. I
suspect the kind of things you are asking about would be addressed in
conjunction with that work. At the moment one of our external contributers has
contributed some ideas and code.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=226421
Please feel free to comment on the bug and add ideas, or to add other
enhancement requests.
We are quite interested in integrating these ideas into EclipseLink, but I
suspect that work will not occur until after we ship our initial JPA 2.0
implementation which is our development priority at the moment.
-Tom
Philipp Kursawe wrote:
On Wed, 07 Jan 2009 16:51:06 +0100, Tom Ware <tom.ware@xxxxxxxxxx> wrote:
In OSGi, dynamic weaving will be enabled if you have the
org.eclipse.persistence.jpa.equinox.weaving and
org.eclipse.persistence.jpa.equinox bundles deployed. If you do not
have those bundles deployed, we cannot weave dynamically as we do not
have the necessary classloader hooks.
If you are interested in getting EclipseLink running I'd love to help
you out. The first thing we should do is figure out whether the issue
you are seeing is related to weaving behavior, caching behavior, or
OSGi. If the objects are weaved, in your debugger, you will see a
number of new variables, with names starting with "_persistence". If
you do not see those variables, there is something else going on.
Please let me know if you you'd like some help getting EclipseLink
working,
Thanks for your offer Tom. I will come back to it when I start working
on the app again.
btw: Will EclipseLink offer dynamic adding/removing of Entities to the
EntityManager during runtime?
In OSGi I would like to add and remove new Entities to the running
system, without restarting the app.
Dynamic-JPA allows that to a certain degree. With Hibernate I wrote
myself a little helper that recreated the EM each time the bundle
configuration changed. But I was under the impression JPA would already
do that, which it does not, to my surprise.
Phil
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- References:
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- From: Chiovari Cristian Sergiu
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving
- Re: [eclipselink-users] Re: rcp, osgi, and dynamic weaving