EventChildGenericFacade.java
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package fi.insomnia.bortal.facade;
import java.util.List;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import fi.insomnia.bortal.model.EventPk;
import fi.insomnia.bortal.model.EventPk_;
import fi.insomnia.bortal.model.GenericEventChild;
import fi.insomnia.bortal.model.GenericEventChild_;
import fi.insomnia.bortal.model.LanEvent;
/**
* Session Bean implementation class GenericFacade
*/
public abstract class EventChildGenericFacade<T extends GenericEventChild> extends GenericFacade<EventPk, T> {
public EventChildGenericFacade(Class<T> entityClass) {
super(entityClass);
}
private static final Logger logger =
LoggerFactory.getLogger(EventChildGenericFacade.class);
public T find(LanEvent e, Integer id) {
return find(new EventPk(e.getId(), id));
}
public T find(Integer eventId, Integer id) {
EventPk pk = new EventPk(eventId, id);
return find(pk);
}
public List<T> findAll(LanEvent event) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<T> cq = cb.createQuery(getEntityClass());
Root<T> root = cq.from(getEntityClass());
cq.where(cb.equal(root.get(GenericEventChild_.event), event));
cq.orderBy(cb.asc(root.get(GenericEventChild_.id).get(EventPk_.id)));
return getEm().createQuery(cq).getResultList();
}
// public List<T> findRange(LanEvent event, int[] range) {
// CriteriaQuery<T> cq =
// getEm().getCriteriaBuilder().createQuery(getEntityClass());
// cq.select(cq.from(getEntityClass()));
// TypedQuery<T> q = getEm().createQuery(cq);
// q.setMaxResults(range[1] - range[0]);
// q.setFirstResult(range[0]);
// return q.getResultList();
// }
//
// protected static <K> K getSingleNullableResult(TypedQuery<K> q) {
// K ret = null;
// try {
// ret = q.getSingleResult();
// } catch (NoResultException e) {
// ret = null;
// }
// return ret;
// }
//
// public void evict(T entity) {
// if (entity != null && entity.getId() != null) {
// getEm().getEntityManagerFactory().getCache().evict(getEntityClass(),
// entity.getId());
// }
// }
//
// public void evictClass() {
// getEm().getEntityManagerFactory().getCache().evict(getClass());
// }
}