This week's book giveaway is in the Cloud/Virtualization forum. We're giving away four copies of Learning OpenStack Networking: Build a solid foundation in virtual networking technologies for OpenStack-based clouds and have James Denton on-line! See this thread for details.
In chapter 12 of JPA Pro, Shared Cache section:
The shared cache is manipulated in JPA through a slim javax.persistence.Cache interface. An object that implements Cache can be obtained from the entity manager factory by invoking EntityManagerFactory.getCache()....
So, if the entity manager is not created by the entity manager, does it mean shared cache is not applicable ?