/*
 * 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 javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.ForeignKey;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;

import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;

import org.junit.Test;

import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;

/**
 * @author Vlad Mihalcea
 */
public class ManyToOneTest extends BaseEntityManagerFunctionalTestCase {

	@Override
	protected Class<?>[] getAnnotatedClasses() {
		return new Class<?>[] {
				Person.class,
				Phone.class,
		};
	}

	@Test
	public void testLifecycle() {
		doInJPA( this::entityManagerFactory, entityManager -> {
			//tag::associations-many-to-one-lifecycle-example[]
			Person person = new Person();
			entityManager.persist( person );

			Phone phone = new Phone( "123-456-7890" );
			phone.setPerson( person );
			entityManager.persist( phone );

			entityManager.flush();
			phone.setPerson( null );
			//end::associations-many-to-one-lifecycle-example[]
		} );
	}

	//tag::associations-many-to-one-example[]
	@Entity(name = "Person")
	public static class Person {

		@Id
		@GeneratedValue
		private Long id;

		public Person() {
		}
	}

	@Entity(name = "Phone")
	public static class Phone {

		@Id
		@GeneratedValue
		private Long id;

		@Column(name = "`number`")
		private String number;

		@ManyToOne
		@JoinColumn(name = "person_id",
				foreignKey = @ForeignKey(name = "PERSON_ID_FK")
		)
		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;
		}
	}
	//end::associations-many-to-one-example[]
}