[hibernate-dev] Question about Hibernate 4.0 Infinispan second level cache usage...

I'm looking at o.h.c.i.InfinispanRegionFactory and wondering how best to configure the 2lc for AS 7.1. After a recent forum discussion and opening AS7-1544, I need to make some corrections to properly accommodate multiple JPA persistence units sharing the same underlying cache definition or having their own. Currently, with AS 7.0/7.0.1, I think each application should have its own Infinispan cache definition. In theory, the same cache definition could be shared if entity class names are unique across all persistence units (within apps and across different applications). This can be accommodated currently by adding additional Infinispan configuration entries to the AS7 standalone.xml (or domain.xml). One question that I have, is could we add an additional key for identifying the 2lc cache. The additional key that I have at the time of creating the container managed entity manager, is the "application name scoped persistence unit name" (includes the PU name and the application/containing jar name). Perhaps that could be passed into InfinispanRegionFactory via a property representing a unique way to refer to all 2lc entries for a specific applications persistence unit definition. I'm not sure how desirable it would be to further qualify the cache entries with this additional information (especially if it increases the payload transferred during replication). I think the alternative would be to have each application, configure their own cache definition (either to share with all applications PU or create a separate definition per PU). This might be close to what I already described as a workaround in the http://community.jboss.org/message/620903 forum post. What do you think? Scott