jpa criteria for many to many relationship

Question

I have 2 POJO classes in Java, Answer and Collaborator, in a many-to-many relationship.

class Answer {
    @ManyToMany(cascade = CascadeType.ALL)
    @JoinTa         


        

Answer 1

It's done, finally...

Here's the code:

public List getCollaborators(Long answerId) {
        CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
        CriteriaQuery criteriaQuery = criteriaBuilder
                .createQuery(Collaborator.class);
        Root answerRoot = criteriaQuery.from(Answer.class);
        criteriaQuery.where(criteriaBuilder.equal(answerRoot.get(Answer_.id),
                answerId));
        SetJoin answers = answerRoot
                .join(Answer_.collaborators);
        CriteriaQuery cq = criteriaQuery.select(answers);
        TypedQuery query = entityManager.createQuery(cq);
        return query.getResultList();

    }