From the reviews:
"An introduction to the new Java Persistence application programming interfaces (APIs), this book serves not only as a tutorial on how to use them, but also as a basic reference text. … The book is very well written, and the technical material is presented clearly without excessive detail. … this is an excellent textbook." (M. S. Joy, ACM Computing Reviews, Vol. 49 (3), March, 2008)
About the Author
Mike Keith wasthe co-specification lead for JPA 1.0 and a member of the JPA 2.0 and JPA 2.1expert groups. He sits on a number of other Java Community Process expertgroups and the Enterprise Expert Group (EEG) in the OSGi Alliance. He holds aMasters degree in Computer Science from Carleton University, and has over 20years experience in persistence and distributed systems research and practice.He has written papers and articles on JPA and spoken at numerous conferencesaround the world. He is employed as an architect at Oracle in Ottawa, Canada,and is married with four kids and two dogs.
Merrick Schincariolis a consulting engineer at Oracle, specializing in middleware technologies. Hehas a Bachelor of Science degree in Computer Science from Lakehead University,and has more than a decade of experience in enterprise softwaredevelopment. He spent some time consulting in the pre-Java enterprise andbusiness intelligence fields before moving on to write Java and J2EEapplications. His experience with large-scale systems and data warehousedesign gave him a mature and practiced perspective on enterprise software,which later propelled him into doing Java EE container implementationwork.