/*
* 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.associations;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
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.annotations.NaturalId;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.junit.Test;
import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
/**
* @author Vlad Mihalcea
*/
public class OneToManyBidirectionalTest extends BaseEntityManagerFunctionalTestCase {
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class<?>[] {
Person.class,
Phone.class,
};
}
@Test
public void testLifecycle() {
doInJPA( this::entityManagerFactory, entityManager -> {
//tag::associations-one-to-many-bidirectional-lifecycle-example[]
Person person = new Person();
Phone phone1 = new Phone( "123-456-7890" );
Phone phone2 = new Phone( "321-654-0987" );
person.addPhone( phone1 );
person.addPhone( phone2 );
entityManager.persist( person );
entityManager.flush();
person.removePhone( phone1 );
//end::associations-one-to-many-bidirectional-lifecycle-example[]
} );
}
//tag::associations-one-to-many-bidirectional-example[]
@Entity(name = "Person")
public static class Person {
@Id
@GeneratedValue
private Long id;
@OneToMany(mappedBy = "person", cascade = CascadeType.ALL, orphanRemoval = true)
private List<Phone> phones = new ArrayList<>();
public Person() {
}
public Person(Long id) {
this.id = id;
}
public List<Phone> getPhones() {
return phones;
}
public void addPhone(Phone phone) {
phones.add( phone );
phone.setPerson( this );
}
public void removePhone(Phone phone) {
phones.remove( phone );
phone.setPerson( null );
}
}
@Entity(name = "Phone")
public static class Phone {
@Id
@GeneratedValue
private Long id;
@NaturalId
@Column(name = "`number`", unique = true)
private String number;
@ManyToOne
private Person person;
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;
}
@Override
public boolean equals(Object o) {
if ( this == o ) {
return true;
}
if ( o == null || getClass() != o.getClass() ) {
return false;
}
Phone phone = (Phone) o;
return Objects.equals( number, phone.number );
}
@Override
public int hashCode() {
return Objects.hash( number );
}
}
//end::associations-one-to-many-bidirectional-example[]
}