/*
 * 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 javax.persistence.Entity;
import javax.persistence.Id;

import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;

import org.junit.Test;

import org.jboss.logging.Logger;

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

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

    private static final Logger log = Logger.getLogger( FlushOrderTest.class);

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

    @Test
    public void testOrder() {
        doInJPA( this::entityManagerFactory, entityManager -> {
            entityManager.createNativeQuery("delete from Person").executeUpdate();
        });
        doInJPA( this::entityManagerFactory, entityManager -> {
            Person person = new Person("John Doe");
            person.id = 1L;
            entityManager.persist(person);
        });
        doInJPA( this::entityManagerFactory, entityManager -> {
            log.info("testFlushSQL");
            //tag::flushing-order-example[]
            Person person = entityManager.find( Person.class, 1L);
            entityManager.remove(person);

            Person newPerson = new Person( );
            newPerson.setId( 2L );
            newPerson.setName( "John Doe" );
            entityManager.persist( newPerson );
            //end::flushing-order-example[]
        });
    }

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

        @Id
        private Long id;

        private String name;

        public Person() {
        }

        public Person(String name) {
            this.name = name;
        }

        public Long getId() {
            return id;
        }

        public void setId(Long id) {
            this.id = id;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }
    }
}