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From Timothy Ward <>
Subject RE: [jira] Commented: (ARIES-413) Injecting an entity manager using factory method
Date Tue, 21 Sep 2010 16:23:54 GMT

Hi Bengt,

I think you're right that email is a better medium for this conversation.

ARIES-322 is still open, but I have queried why. The fix was committed back in June, and the
failure has not been brought up since so I'm pretty certain someone has just forgotten to
close off the JIRA.

The solution does not require an anonymous bean, it just seemed a little more elegant as it
limits access to the uninitialized bean.

The reason this solution works is because we inject the bean that needs transactional initialisation
into another, and have that bean call initialize. Because the fixture bean has been completely
instantiated and wrappered before it is injected, we can call methods on the injected bean
and get the relevant transactional behaviour.

We then need a way to access the injected bean, which is why I used an instance factory method.
This isn't strictly necessary, but otherwise you need to be sure that you create the initializing
bean before you first use the fixture, or else it will not have been initialized.

I hope this clears things up a bit.



> Date: Tue, 21 Sep 2010 11:07:32 -0400
> From:
> To:
> Subject: [jira] Commented: (ARIES-413) Injecting an entity manager using factory method
> [
> Bengt Rodehav commented on ARIES-413:
> -------------------------------------
> Can you elaborate a little why this would work? Why does it require an anonymous? Also
noted that ARIES-322 is still open.
> Maybe we should continue this conversation on the list instead of in JIRA...
>> Injecting an entity manager using factory method
>> ------------------------------------------------
>> Key: ARIES-413
>> URL:
>> Project: Aries
>> Issue Type: Improvement
>> Components: JPA
>> Affects Versions: 0.2
>> Reporter: Bengt Rodehav
>> Assignee: Timothy Ward
>> It is only possible to use setter injection when injecting a JPA entity manager.
The following injection types should also be supported since they are supported in the Blueprint
>> - Constructor injection
>> - Factory method injection
>> - Factory class injection
>> An example of usage could be (using a factory method):
> --
> This message is automatically generated by JIRA.
> -
> You can reply to this email to add a comment to the issue online.
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