/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* 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, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.envers.test.integration.query;
import javax.persistence.EntityManager;
import org.hibernate.envers.test.AbstractEntityTest;
import org.hibernate.envers.test.entities.IntTestEntity;
import org.hibernate.envers.query.AuditEntity;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import org.hibernate.ejb.Ejb3Configuration;
/**
* @author Adam Warski (adam at warski dot org)
*/
@SuppressWarnings({"unchecked"})
public class AggregateQuery extends AbstractEntityTest {
public void configure(Ejb3Configuration cfg) {
cfg.addAnnotatedClass(IntTestEntity.class);
}
@BeforeClass(dependsOnMethods = "init")
public void initData() {
// Revision 1
EntityManager em = getEntityManager();
em.getTransaction().begin();
IntTestEntity ite1 = new IntTestEntity(2);
IntTestEntity ite2 = new IntTestEntity(10);
em.persist(ite1);
em.persist(ite2);
Integer id1 = ite1.getId();
Integer id2 = ite2.getId();
em.getTransaction().commit();
// Revision 2
em.getTransaction().begin();
IntTestEntity ite3 = new IntTestEntity(8);
em.persist(ite3);
ite1 = em.find(IntTestEntity.class, id1);
ite1.setNumber(0);
em.getTransaction().commit();
// Revision 3
em.getTransaction().begin();
ite2 = em.find(IntTestEntity.class, id2);
ite2.setNumber(52);
em.getTransaction().commit();
}
@Test
public void testEntitiesAvgMaxQuery() {
Object[] ver1 = (Object[]) getAuditReader().createQuery()
.forEntitiesAtRevision(IntTestEntity.class, 1)
.addProjection(AuditEntity.property("number").max())
.addProjection(AuditEntity.property("number").function("avg"))
.getSingleResult();
Object[] ver2 = (Object[]) getAuditReader().createQuery()
.forEntitiesAtRevision(IntTestEntity.class, 2)
.addProjection(AuditEntity.property("number").max())
.addProjection(AuditEntity.property("number").function("avg"))
.getSingleResult();
Object[] ver3 = (Object[]) getAuditReader().createQuery()
.forEntitiesAtRevision(IntTestEntity.class, 3)
.addProjection(AuditEntity.property("number").max())
.addProjection(AuditEntity.property("number").function("avg"))
.getSingleResult();
assert (Integer) ver1[0] == 10;
assert (Double) ver1[1] == 6.0;
assert (Integer) ver2[0] == 10;
assert (Double) ver2[1] == 6.0;
assert (Integer) ver3[0] == 52;
assert (Double) ver3[1] == 20.0;
}
}