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They also have a nice list of similar projects on their website.

Querydsl

Querydsl (spell: query diesel) is a framework which enables the construction of statically typed SQL-like queries. Instead of writing queries as inline strings or externalizing them into XML files they can be constructed via a fluentDSL/API like Querydsl.

http://source.mysema.com/display/querydsl/Querydsl^{Image Added}