I have applied some of what I learned while writing jenabean towards a graph database called neo4j. It is strictly a simple tool for persisting java objects to a graph, and retrieving them back. I was able to get in a few features like auto-indexing. This is version 0.1…a very early release.
http://code.google.com/p/jo4neo/
Very cool,
interesting thought to make Neo4j a kind of OODB with annotations! Keep it up and please post progress to the mailing list if you like!
Cheers,
/peter