/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* JBoss, Home of Professional Open Source
* Copyright 2013 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.hibernate.osgitest;
import java.util.List;
import javax.persistence.EntityManager;
import org.hibernate.osgitest.entity.DataPoint;
/**
* @author Brett Meyer
*/
public class DataPointServiceImpl implements DataPointService {
private HibernateUtil hibernateUtil = new HibernateUtil();
public void add(DataPoint dp) {
EntityManager em = hibernateUtil.getEntityManager();
em.getTransaction().begin();
em.persist( dp );
em.getTransaction().commit();
em.close();
}
public void update(DataPoint dp) {
EntityManager em = hibernateUtil.getEntityManager();
em.getTransaction().begin();
em.merge( dp );
em.getTransaction().commit();
em.close();
}
public DataPoint get(long id) {
EntityManager em = hibernateUtil.getEntityManager();
em.getTransaction().begin();
DataPoint dp = (DataPoint) em.createQuery( "from DataPoint dp where dp.id=" + id ).getSingleResult();
em.getTransaction().commit();
em.close();
return dp;
}
public List<DataPoint> getAll() {
EntityManager em = hibernateUtil.getEntityManager();
em.getTransaction().begin();
List list = em.createQuery( "from DataPoint" ).getResultList();
em.getTransaction().commit();
em.close();
return list;
}
public void deleteAll() {
EntityManager em = hibernateUtil.getEntityManager();
em.getTransaction().begin();
em.createQuery( "delete from DataPoint" ).executeUpdate();
em.getTransaction().commit();
em.close();
}
}