Message Title

For the record I've just reviewed a benchmark which does use the setCriteriaQuery like suggested by Emmanuel:

        Query q = fts.getSearchFactory()
                .buildQueryBuilder()
                .forEntity(Book.class)
                .get()
                .keyword()
                .onField("authors.name")
                .matching("author" + authorId)
                .createQuery();
        
        Criteria fetchAuthors = fts.createCriteria(Book.class).setFetchMode("authors", FetchMode.JOIN);

        List<Book> result = fts.createFullTextQuery(q, Book.class).setCriteriaQuery(fetchAuthors).list();