Artemis
Cassandra "ORM" with hooks for Jersey integration if desired
Using the new CQL3 driver by Datastax Artemis provides extremely easy to use "ORM" like functionality for Cassandra. It also contains hooks for integration into Jersey2 to enable rapid development of RESTful services, or even websites, if you enable JSP functionality for Jersey. If there is a demand, I could add a plugin to render views using things like Velocity, etc.
See https://sourceforge.net/p/wicca/wiki/Home/
for more documentation