[hibernate-dev] HHH-7610 Embedded: emptiness and dirtiness

Guillaume Smet guillaume.smet at gmail.com
Mon Oct 20 05:08:57 EDT 2014


Any interest in us pursuing this?

We are obviously committed to update the documentation once we have
validated it's the way to go.

Thanks for your feedback.

On Tue, Oct 14, 2014 at 3:23 PM, Guillaume Smet
<guillaume.smet at gmail.com> wrote:
> Hi all,
> So, after a long time without any issue (rest assured we were busy
> anyway!), we got around a new problem we would like to fix in ORM:
> HHH-7610 .
> It's a long standing complaint about the embedded and the fact that
> empty components are returned from the ORM.
> We had the "good" idea to fix it by overriding the getter to set the
> value to an empty object if null and it's not really a good one: we do
> a lot of unnecessary updates due to the fact that our entities are
> considered dirty.
> A coworker of mine (Laurent CCed) followed the instructions given by
> Steve in HHH-7610 to implement a configuration setting to return an
> empty component if all its properties is null:
> see https://github.com/openwide-java/hibernate-orm/commit/a219fd38c0a80e6bf0a5de41f31e49ee83f00ccf
> -> we think this one should be ready to commit. It's for 4.3.x.
> -> using all the tests with this new setting enabled triggers a few
> errors but, after carefully reviewing them, they are all expected due
> to the nature of this change.
> We are wondering if we shouldn't also change the isDirty/equals...
> stuff to consider 2 components equals if one is null and the other has
> all its properties null: it sounds kinda logical to us considering ORM
> already automatically transforms one to the other if we save then get
> the entity.
> We wrote a few tests to demonstrate the issue and we would like to
> know if you would consider this a good idea or not to fix this in both
> cases (settings on or off):
> https://github.com/openwide-java/hibernate-orm/commit/ee913e79633d3a5ac9c5affdcb58ab3af780f71a
> Thanks for your advice.
> --
> Guillaume

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