Message Title

There are also two other read-only alternatives.

The HQL/JPQL new operator:

 
                                                                SELECT new com.company.dtos.MySimpleDTO(o.fieldA, o.fieldB) FROM MyEntity o

The JPA construct API:

 
                                                                CriteriaBuilder cb = entityManager.getCriteriaBuilder();
CriteriaQuery<MySimpleDTO> cq = cb.createQuery(MySimpleDTO.class);
Root<MyEntity> root = cq.from(MyEntity.class);
cq.select(cb.construct(MySimpleDTO.class, root.get(MyEntity_.fieldA), root.get(MyEntity_.fieldB)));
...
 
                                                            

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