RoleFacade.java
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package fi.codecrew.moya.facade;
import java.util.ArrayList;
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.codecrew.moya.beans.EventBeanLocal;
import fi.codecrew.moya.model.EventUser;
import fi.codecrew.moya.model.LanEvent;
import fi.codecrew.moya.model.Role;
import fi.codecrew.moya.model.Role_;
@Stateless
@LocalBean
public class RoleFacade extends IntegerPkGenericFacade<Role> {
@EJB
private EventBeanLocal eventbean;
public RoleFacade() {
super(Role.class);
}
// public Role findByName(String name, LanEvent event) {
// TypedQuery<Role> q = em.createNamedQuery("Role.findByRoleName",
// Role.class);
// q.setParameter("name", name);
// q.setParameter("event", event);
// return getSingleNullableResult(q);
// }
public List<Role> findForUser(EventUser user) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Role> cq = cb.createQuery(Role.class);
Root<Role> root = cq.from(Role.class);
cq.where(cb.equal(root.get(Role_.event), eventbean.getCurrentEvent()), cb.isMember(user, root.get(Role_.users)));
return getEm().createQuery(cq).getResultList();
}
public Role createRole(LanEvent event, String rolename) {
Role ret = new Role(event);
ret.setName(rolename);
create(ret);
return ret;
}
public List<Role> findAll() {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Role> cq = cb.createQuery(Role.class);
Root<Role> root = cq.from(Role.class);
cq.where(cb.equal(root.get(Role_.event), eventbean.getCurrentEvent()));
return getEm().createQuery(cq).getResultList();
}
public List<Role> findUserSelectableRoles() {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Role> cq = cb.createQuery(Role.class);
Root<Role> root = cq.from(Role.class);
cq.where(cb.equal(root.get(Role_.event), eventbean.getCurrentEvent()),
cb.greaterThan(root.get(Role_.selectChildrensCount), new Integer(0)));
List<Role> roles = getEm().createQuery(cq).getResultList();
ArrayList<Role> returnRoles = new ArrayList<Role>();
// sorry for uqly loop
for(Role role : roles) {
if(role.getSelectChildrensCount() > 0) { // just in case
for(Role subRole : role.getChildren()) {
if(!returnRoles.contains(subRole)) {
returnRoles.add(subRole);
}
}
}
}
return returnRoles;
}
}