/*
 * 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.locking;

import java.sql.Timestamp;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;

import org.hibernate.annotations.DynamicUpdate;
import org.hibernate.annotations.OptimisticLockType;
import org.hibernate.annotations.OptimisticLocking;
import org.hibernate.annotations.SelectBeforeUpdate;
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 OptimisticLockTypeDirtyTest extends BaseEntityManagerFunctionalTestCase {

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

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

	@Test
	public void test() {
		doInJPA( this::entityManagerFactory, entityManager -> {
			Person person = new Person(  );
			person.setId( 1L );
			person.setName( "John Doe" );
			person.setCountry( "US" );
			person.setCity( "New York" );
			person.setCreatedOn( new Timestamp( System.currentTimeMillis() ) );
			entityManager.persist( person );
		} );
		doInJPA( this::entityManagerFactory, entityManager -> {
			//tag::locking-optimistic-lock-type-dirty-update-example[]
			Person person = entityManager.find( Person.class, 1L );
			person.setCity( "Washington D.C." );
			//end::locking-optimistic-lock-type-dirty-update-example[]
		} );
	}

	//tag::locking-optimistic-lock-type-dirty-example[]
	@Entity(name = "Person")
	@OptimisticLocking(type = OptimisticLockType.DIRTY)
	@DynamicUpdate
	@SelectBeforeUpdate
	public static class Person {

		@Id
		private Long id;

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

		private String country;

		private String city;

		@Column(name = "created_on")
		private Timestamp createdOn;

		//Getters and setters are omitted for brevity
	//end::locking-optimistic-lock-type-dirty-example[]

		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;
		}

		public String getCountry() {
			return country;
		}

		public void setCountry(String country) {
			this.country = country;
		}

		public String getCity() {
			return city;
		}

		public void setCity(String city) {
			this.city = city;
		}

		public Timestamp getCreatedOn() {
			return createdOn;
		}

		public void setCreatedOn(Timestamp createdOn) {
			this.createdOn = createdOn;
		}
	//tag::locking-optimistic-lock-type-dirty-example[]
	}
	//end::locking-optimistic-lock-type-dirty-example[]
}