Hibernate占位符?和:及JPA

String hql = "select a from Apple a where a.color=? a.weight>?";
Query query = session.createQuery(hql);
query.setParameter(0, "red");
query.setParameter(1, "10");

String hql = "select a from Apple a where a.color=:pcolor a.weight>:pweight";
Query query = session.createQuery(hql);
query.setParameter("pcolor", "red");
query.setParameter("pweight", "10");

String hql = "select a from Apple a where a.color=?2 a.weight>?5";
Query query = session.createQuery(hql);
query.setParameter("2", "red");
query.setParameter("5", "10");