/* Jug Management is a web application conceived to manage user groups or * communities focused on a certain domain of knowledge, whose members are * constantly sharing information and participating in social and educational * events. Copyright (C) 2011 Ceara Java User Group - CEJUG. * * This application 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 application 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. * * There is a full copy of the GNU Lesser General Public License along with * this library. Look for the file license.txt at the root level. If you do not * find it, write to the Free Software Foundation, Inc., 59 Temple Place, * Suite 330, Boston, MA 02111-1307 USA. * */ package org.cejug.yougi.event.business; import java.util.List; import javax.ejb.LocalBean; import javax.ejb.Stateless; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import org.cejug.yougi.event.entity.Event; import org.cejug.yougi.event.entity.EventSession; import org.cejug.yougi.event.entity.Speaker; import org.cejug.yougi.util.EntitySupport; /** * * @author Hildeberto Mendonca - http://www.hildeberto.com */ @Stateless @LocalBean public class SpeakerBsn { @PersistenceContext private EntityManager em; public Speaker findSpeaker(String id) { if (id != null) { return em.find(Speaker.class, id); } return null; } public List<Speaker> findSpeakers(Event event) { return em.createQuery("select s from Speaker s where s.session.event = :event order by s.userAccount.firstName asc") .setParameter("event", event) .getResultList(); } public List<Speaker> findSpeakers(EventSession session) { return em.createQuery("select s from Speaker s where s.session = :session order by s.userAccount.firstName asc") .setParameter("session", session) .getResultList(); } public void save(Speaker speaker) { if (EntitySupport.INSTANCE.isIdNotValid(speaker)) { speaker.setId(EntitySupport.INSTANCE.generateEntityId()); em.persist(speaker); } else { em.merge(speaker); } } public void remove(String id) { Speaker speaker = em.find(Speaker.class, id); if (speaker != null) { em.remove(speaker); } } }