Criteria API Path to sub-sub-entity id?

If the JPQL you've shown is working, then I'll assume that your ParentEntity is holding a reference to its parent (in a form of parent field of ParentEntity type). Therefore, something like this should work.

If the JPQL you've shown is working, then I'll assume that your ParentEntity is holding a reference to its parent (in a form of parent field of ParentEntity type). Therefore, something like this should work: Path parentId = root. Get(Entity_.

Parent). Get(ParentEntity_. Parent) .

Get(ParentEntity_. Id); Predicate whereParentId = builder. Equal(parentId, selectedParent.getId()); I've done similar thing but for one entity (Customer is child and parent entity at the same time and references its parent through parent field of Customer type) and something like this worked perfectly fine: query.

Select(customer) . Where(criteriaBuilder. Equal( customer.

Get("parent"). Get("parent"). Get("id"), criteriaBuilder.

Parameter(int. Class, "parentId"))); List customers = em. CreateQuery(query) .

SetParameter("parentId", john.getId()).getResultList().

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