CallCustomFunction.java

TypedQuery<Book> q = em.createQuery("SELECT b FROM Book b "
			    + "WHERE :double2 > function('calculate', b.price, :double1)"
			    , Book.class);

CallCustomFunction.log

07:15:43,305 DEBUG [org.hibernate.SQL] - 
    select
        book0_.id as id1_0_,
        book0_.price as price2_0_,
        book0_.publishingDate as publishi3_0_,
        book0_.title as title4_0_,
        book0_.version as version5_0_ 
    from
        Book book0_ 
    where
        ?>calculate(book0_.price, ?)

CallFunction.java

Query q = em.createQuery(“SELECT a, size(a.books) FROM Author a GROUP BY a.id”);

CallFunction.log

14:45:45,952 DEBUG [org.hibernate.SQL] - 
    select
        author0_.id as col_0_0_,
        count(books1_.authorId) as col_1_0_,
        author0_.id as id1_0_,
        author0_.firstName as firstNam2_0_,
        author0_.lastName as lastName3_0_,
        author0_.version as version4_0_ 
    from
        Author author0_ cross 
    join
        BookAuthor books1_ 
    where
        author0_.id=books1_.authorId 
    group by
        author0_.id