RDFReactor

RDFReactor views the RDF data model through object-oriented Java proxies. It makes using RDF easy for Java developers.

Features
Think in objects, not statements
Read and write RDF data using familiar Java obects use person.setName("Max Mustermann") instead of addTriple( personURI, nameURI, "Max Mustermann" )
Dynamic state
all state information is at all times only in the RDF model in the triple store of your choice
Java interfaces are generated automatically from an RDF Schema
Mapping from RDF Schema to Java fully customizable
Thanks to Jena it reads: RDF/XML, N3 or NT syntax

http://rdfreactor.ontoware.org/