EventUserFacade.java
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package fi.insomnia.bortal.facade;
import java.util.List;
import javax.ejb.EJB;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import fi.insomnia.bortal.beans.EventBeanLocal;
import fi.insomnia.bortal.model.EventUser;
import fi.insomnia.bortal.model.EventUser_;
import fi.insomnia.bortal.model.User;
import fi.insomnia.bortal.model.User_;
/**
* Session Bean implementation class EventUserFacade
*/
@Stateless
@LocalBean
public class EventUserFacade extends IntegerPkGenericFacade<EventUser> {
@EJB
private EventBeanLocal eventBean;
public EventUserFacade() {
super(EventUser.class);
}
public EventUser findByLogin(String login) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<EventUser> cq = cb.createQuery(EventUser.class);
Root<EventUser> root = cq.from(EventUser.class);
cq.where(
cb.equal(root.get(EventUser_.user).get(User_.login), login),
cb.equal(root.get(EventUser_.event),
eventBean.getCurrentEvent()));
return getSingleNullableResult(getEm().createQuery(cq));
}
public EventUser find(User user) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<EventUser> cq = cb.createQuery(EventUser.class);
Root<EventUser> root = cq.from(EventUser.class);
cq.where(
cb.equal(root.get(EventUser_.user), user),
cb.equal(root.get(EventUser_.event),
eventBean.getCurrentEvent()));
return getSingleNullableResult(getEm().createQuery(cq));
}
public List<EventUser> findAll() {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<EventUser> cq = cb.createQuery(EventUser.class);
Root<EventUser> root = cq.from(EventUser.class);
cq.where(cb.equal(root.get(EventUser_.event),
eventBean.getCurrentEvent()));
return getEm().createQuery(cq).getResultList();
}
}