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Re: [eclipselink-users] EclipseLink in OSGi environment
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The best place to get started is the Gemini project. It includes the reference
implementation for a number of Java EE technologies in OSGi.
http://www.eclipse.org/gemini/
The base of the JPA part of the project is here:
http://www.eclipse.org/gemini/jpa/
Documentation is on the wiki:
http://wiki.eclipse.org/Gemini/JPA/Documentation
-Tom
On 24/11/2011 12:20 PM, Eugen Reiswich wrote:
Hi folks,
I googled now for two days to find an appropriate OSGi + EclipseLink example,
but only found very basic ones.
I've got an OSGi application with the following architecture:
*Bundles:*
*.ui.customer
*.ui.account
*.domain.customer // business objects like Customer.java, Address.java etc.
*.domain.account // business objects like Account.java
*.service.customer // customer logic
*.service.account
*.service.customer.dao // persistence logic
*.service.account.dao
Using this architecture I would like to:
- use ORM.XML files in my *.dao-bundles rather that annotations in my business
objects. This should keep my business objects and domain bundles free of any
technology.
- I would like to provide one DB-Connection credentials. I understand that a
persistence.xml contains both: the persistence unit and DB-connection
information. In my example I would need two persistence.xml files for customer
and account bundles providing DB-connection information twice. Right?
*My questions are:*
1. assuming the above requirements/architecture what's the best way to make this
work with EclipseLink + JPA 2.0?
2. where do I have to put the persistence.xml file(s)?
3. How can I tell EclipseLink that my DAO-bundles provide ORM mapping files?
Regards,
Eugen
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