criteria.addLike("headline","Bra%");
criteria.addNotNull("qualifiers.name");
QueryByCriteria query = new QueryByCriteria(BaseContentImpl.class, criteria, true);
query.addPathClass("qualifiers",Qualifier.class);
query.addPathClass("qualifiers",Topic.class);
query.addPathClass("qualifiers",Category.class);
List content = (List) broker.getCollectionByQuery(query);
assertEquals(1,content.size());
assertEquals(3,((News)content.get(0)).getId());
}