Spring Data Commons is part of the umbrella Spring Data project that
provides shared infrastructure across the Spring Data projects. Most
importantly at the moment it contains technology neutral repository
interfaces as well as a meta-data model for persisting Java classes.

Features:
° Powerful Repository and custom object-mapping abstractions
° Support for cross-store persistence
° Dynamic query generation from query method names
° Implementation domain base classes providing basic properties
° Support for transparent auditing (created, last changed)
° Possibility to integrate custom repository code
° Easy Spring integration with custom name-space