JPA query language

Oracle's tutorial made this seem really difficult
with all the high-level-of-abstraction discussion of
traversing over relations between entities,
but then I looked in the Hibernate book and it's
not that bad... there are only some small differences
between HQL and JPA-QL.

Spring Roo database reverse engineering

This is me, answering my own question on the Spring Roo forum:
http://forum.springsource.org/showthread.php?116012-Database-reverse-engineering-problem.