/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.tutorial.callback.bean;

import java.util.Iterator;
import java.util.List;

import javax.interceptor.Interceptors;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.ejb.Remote;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

@Stateless
@Remote(CustomerDAO.class)
@Interceptors({LifecycleInterceptor.class})
public class CustomerDAOBean implements CustomerDAO
{
   @PersistenceContext
   private EntityManager manager;

   public int create(String first, String last, String street, String city, String state, String zip)
   {
      System.out.println("-- CustomerDAOBean.create()");
      Customer customer = new Customer(first, last, street, city, state, zip);
      manager.persist(customer);
      return customer.getId();
   }

   public Customer find(int id)
   {
      System.out.println("-- CustomerDAOBean.find()");
      return manager.find(Customer.class, id);
   }

   public List findByLastName(String last)
   {
      System.out.println("-- CustomerDAOBean.findByLastName(id)");
      return manager.createQuery("from Customer c where c.last = :last").setParameter("last", last).getResultList();
   }

   public void merge(Customer c)
   {
      System.out.println("-- CustomerDAOBean.merge()");
      manager.merge(c);
   }

   public void delete(List l)
   {
      System.out.println("-- CustomerDAOBean.delete()");
      for (Iterator it = l.iterator() ; it.hasNext() ; )
      {
         Customer c = (Customer)it.next();
         manager.remove(c);
      }
   }

   // Callbacks ----------------------------------------------------------------
   @PostConstruct
   public void postConstructCallback()
   {
      System.out.println("PostConstruct - Have EntityManager: " + (manager != null));
   }

   @PreDestroy
   public void preDestroyCallback()
   {
      System.out.println("PreDestory - Have EntityManager: " + (manager != null));
   }
}