/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.userguide.flush;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import org.hibernate.FlushMode;
import org.hibernate.Session;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.junit.Test;
import org.jboss.logging.Logger;
import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
import static org.junit.Assert.assertTrue;
/**
* @author Vlad Mihalcea
*/
public class ManualFlushTest extends BaseEntityManagerFunctionalTestCase {
private static final Logger log = Logger.getLogger( ManualFlushTest.class);
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class<?>[]{
Person.class,
Phone.class,
Advertisement.class,
};
}
@Test
public void testFlushSQL() {
doInJPA( this::entityManagerFactory, entityManager -> {
entityManager.createNativeQuery("delete from Person").executeUpdate();
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info("testFlushSQL");
//tag::flushing-manual-flush-example[]
Person person = new Person("John Doe");
entityManager.persist(person);
Session session = entityManager.unwrap( Session.class);
session.setHibernateFlushMode( FlushMode.MANUAL );
assertTrue(((Number) entityManager
.createQuery("select count(id) from Person")
.getSingleResult()).intValue() == 0);
assertTrue(((Number) session
.createSQLQuery("select count(*) from Person")
.uniqueResult()).intValue() == 0);
//end::flushing-manual-flush-example[]
});
}
@Entity(name = "Person")
public static class Person {
@Id
@GeneratedValue
private Long id;
private String name;
@OneToMany(mappedBy = "person", cascade = CascadeType.ALL)
private List<Phone> phones = new ArrayList<>();
public Person() {
}
public Person(String name) {
this.name = name;
}
public Long getId() {
return id;
}
public String getName() {
return name;
}
public List<Phone> getPhones() {
return phones;
}
public void addPhone(Phone phone) {
phones.add(phone);
phone.setPerson(this);
}
}
@Entity(name = "Phone")
public static class Phone {
@Id
@GeneratedValue
private Long id;
@ManyToOne
private Person person;
@Column(name = "`number`")
private String number;
public Phone() {
}
public Phone(String number) {
this.number = number;
}
public Long getId() {
return id;
}
public String getNumber() {
return number;
}
public Person getPerson() {
return person;
}
public void setPerson(Person person) {
this.person = person;
}
}
@Entity(name = "Advertisement")
public static class Advertisement {
@Id
@GeneratedValue
private Long id;
private String title;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
}
}