[hibernate-dev] Feedback on the idea of PersistenceProviderResolver.getPersistenceProviders() caching the same org.hibernate.ejb.HibernatePersistence class instance for multiple application deployments to share ...

[Scott Marlow]

Hello,

How would Hibernate ORM react to its persistence provider class instance 
being used with multiple application deployments?  Is there any "per 
application" state in the ORM persistence provider class instance?

A few different implementations of 
javax.persistence.spi.PersistenceProviderResolver.getPersistenceProviders() 
are not caching the returned PersistenceProvider class instances. [1] 
raised the issue with the WildFly 
PersistenceProviderResolver.getPersistenceProviders() not caching the 
provider class instances for reuse.

Same question for OGM, is there any "per application state" in the OGM 
persistence provider class?

Scott

[1] 
http://lists.jboss.org/pipermail/wildfly-dev/2014-September/002984.html 
is the thread which raised this as a performance issue.