Completely type-safe query-DSL for Java

gistfile1.java

Person p = query.topic(Person.class);

List<Person> results = query.from(p)
    .where(p.getName(), is("Jason"))
    .and(p.getAge(), greaterThan(10))
    .and(p.getCountry(), like("Canad*"))
    .or()
    .where(p.getName(), is("Dhanji"))
    .and(p.getCountry(), not("Canada"))
    .list();