[jboss-as7-dev] JBoss modules definition for Envers

[David M. Lloyd]

On 10/17/2011 08:41 AM, Ales Justin wrote:
> I might miss some detail, but I hope this will help you for now.
> (until David comes online) :-)
>> I am looking at the org.hibernate modules definition in AS7:
>> -<module xmlns="urn:jboss:module:1.0" name="org.hibernate">
>> ...
>> -<dependencies>
>> ...
>>    <module name="org.hibernate.envers" services="import" optional="true" />
>>    </dependencies>
>> </module>
>>
>> Then at envers:
>> -<module xmlns="urn:jboss:module:1.0" name="org.hibernate.envers">
>> ...
>> -<dependencies>
>>    <module name="org.hibernate" />
>> ...
>>    </dependencies>
>> </module>
>>
>> Are cyclical dependencies allowed?
>
> Yes, as long as there are no exports in those involved modules.

In modules 1.1, fully cyclic dependencies are allowed due to a new 
linking algorithm.

>> Also, what's the service="import" clause really about? What's a service in this context?
>
> Afaik, this means you can see dep module' META-INF/services path/dir.
>
> Imo, Envers wants for Hibernate to see this
>
> Skywalker:main alesj$ unzip -c hibernate-envers-4.0.0.CR2.jar META-INF/services/org.hibernate.integrator.spi.Integrator
> Archive:  hibernate-envers-4.0.0.CR2.jar
>    inflating: META-INF/services/org.hibernate.integrator.spi.Integrator
> org.hibernate.envers.event.EnversIntegrator
>
>
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