jPersist is an object-relational persistence API with automatic mapping, and based on the ActiveRecord and DataMapper patterns. jWebApp is an MVC web application framework. Both are configuration and annotation free and can be learned in minutes
SPARQL to Object Oriented eNgine allows users to expose their traditional data sources (RDBMS, OODBMS, XML, LDAP, ecc) as RDF data, through a SPARQL endpoint.