BillFacade.java

package fi.insomnia.bortal.facade;

import javax.ejb.EJB;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceUnit;
import javax.persistence.Query;
import javax.persistence.TypedQuery;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import fi.insomnia.bortal.model.Bill;
import fi.insomnia.bortal.model.LanEvent;
import fi.insomnia.bortal.model.User;

@Stateless
@LocalBean
public class BillFacade extends EventChildGenericFacade<Bill> {

    private static final Logger logger = LoggerFactory.getLogger(BillFacade.class);
    @PersistenceContext
    private EntityManager em;

    @EJB
    private UserFacade userfacade;

    public BillFacade() {
        super(Bill.class);
    }

    protected EntityManager getEm() {
        return em;
    }

    @Override
    public void create(Bill entity) {
        super.create(entity);
        userfacade.evict(entity.getUser());

    }

    public Integer getBiggestBillNumber(LanEvent e) {
        TypedQuery<Integer> q = getEm().createNamedQuery("Bill.findbiggestBillNumber", Integer.class);
        q.setParameter("event", e);
        return getSingleNullableResult(q);
    }

 

}