subPersistence is an abstract, light-weight, yet
flexible framework for working with O/R
persistence mappers. It provides for independence
of a specific O/R mapper such as Hibernate or
Castor. While you can use Hibernate or Castor (or
other O/R mappers) directly, coupling your
application too tightly to those can be a bad
thing. subPersistence makes it easy to switch
underlying O/R mappers, thereby decoupling the
application layer from those. It abstracts away
differences between the mappers, while still
making it possible to use their specific features
if needed.
