RoleRightFacade.java

package fi.insomnia.bortal.facade;

import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;

import fi.insomnia.bortal.model.AccessRight;
import fi.insomnia.bortal.model.Event;
import fi.insomnia.bortal.model.Role;
import fi.insomnia.bortal.model.RoleRight;

@Stateless
@LocalBean
public class RoleRightFacade extends EventChildGenericFacade<RoleRight> {

    @PersistenceContext
    private EntityManager em;

    public RoleRightFacade() {
        super(RoleRight.class);
    }

    protected EntityManager getEm() {
        return em;
    }

    public RoleRight find(Event event, AccessRight right, Role role) {
       TypedQuery<RoleRight> q = this.getEm().createNamedQuery("RoleRight.findByRightAndRoleForEvent", RoleRight.class);
       q.setParameter("accessright", right);
       q.setParameter("role", role);
       q.setParameter("event_id", event.getId());
       return this.getSingleNullableResult(q);
    }

}