criteria-api

I'm trying to create a criteria to retrieve some objects from 3 tables (Associate, Update and Detail). A Detail has reference to Associate and Update, and an Update has reference to a list of Details. My objective is to retrieve a list of Updates that has at least a Detail with null value in a specified field, given an Associate id. In JPQL was easy to do but the client said that this must be coded with criteria. My JPQL was: public List<Update> getUpdates(long associateId) { TypedQuery<Update> query = em.createQuery("select distinct u from Update u, Detail dt, Associate a " + "where dt.update

Given the query example here: http://www.hibernatespatial.org/tutorial-hs4.html Query query = em.createQuery("select e from Event e where within(e.location, :filter) = true", Event.class); query.setParameter("filter", filter); Is it possible to rewrite the query using jpa 2 criteria api?( I am unsure how i should deal with the within(e.location, :filter) part. I recently work at the exact same problem. My solution is a own Predicate for the within-keyword. public class WithinPredicate extends AbstractSimplePredicate implements Serializable { private final Expression<Point> matchExpression;

I have an an object (BlogPost) that contains an M:N collection of elements (Tags). How to query for an object (BlogPost) where at least one it its Tags matches an element in a set of Tags (defined by the user) with JPA2 (Hibernate). findBlogPostWithAtLeastOneMatchingTag(Collection<Tag> tags){ ???? } My main problem is, that I actually need to compare two collections of tags: - the collection of tags of the BlogPost. - the collection I search for I tried Select p from Post p where p.tags in(:tags) but it does not work, as my post entities have more than just one tag. So what could I do instead?

I want to use criteria to make the following query. I have an Entity with EmbeddedId defined: @Entity @Table(name="TB_INTERFASES") public class Interfase implements Serializable { @EmbeddedId private InterfaseId id; } @Embeddable public class InterfaseId implements Serializable { @Column(name="CLASE") private String clase; } And the criteria query that i am trying to do is: CriteriaBuilder criteriaBuilder = this.entityManager.getCriteriaBuilder(); CriteriaQuery<Interfase> criteriaQuery = criteriaBuilder.createQuery(Interfase.class); Root<Interfase> entity = criteriaQuery.from(Interfase.class);

I am a first time user of the new JPA 2.0 Criteria API and I 'm running into a problem when I need to cast a number field to String to compare it with a String parameter. Reason is that I want to search for partial numbers, so I use a 'like' on the CriteriaBuilder. Here's a code sample: CriteriaBuilder cb = getEntityManager().getCriteriaBuilder(); CriteriaQuery<ParcelDO> cq = cb.createQuery(ParcelDO.class); Root<ParcelDO> parcelDO = cq.from(ParcelDO.class); cq.select(parcelDO); String parcelNumberId = parcelSearchDetailDO.getParcelNumberId(); if (parcelNumberId != null && !parcelNumberId