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mariuszdbMariusz Kaczmarczyk
mariuszdb
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Mariusz Kaczmarczyk
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BAEL-5985 Hibernate @CreationTimestamp and @UpdateTimestamp (#13690)
* BAEL-5985 Hibernate @CreationTimestamp and @UpdateTimestamp * BAEL-5985 Remove unnecessary imports * BAEL-5985 Swap order in assertEquals --------- Co-authored-by: Mariusz Kaczmarczyk <to@mariu.sh>
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‎persistence-modules/hibernate-annotations/src/main/java/com/baeldung/hibernate/creationupdatetimestamp/model/Book.java‎

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package com.baeldung.hibernate.creationupdatetimestamp.model;
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import java.time.Instant;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.Id;
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import org.hibernate.annotations.CreationTimestamp;
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import org.hibernate.annotations.UpdateTimestamp;
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@Entity
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public class Book {
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@Id
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@GeneratedValue
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private Long id;
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private String title;
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@CreationTimestamp
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private Instant createdOn;
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@UpdateTimestamp
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private Instant lastUpdatedOn;
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public Book() {
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}
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public Long getId() {
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return id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public String getTitle() {
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return title;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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public Instant getCreatedOn() {
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return createdOn;
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}
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public void setCreatedOn(Instant createdOn) {
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this.createdOn = createdOn;
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}
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public Instant getLastUpdatedOn() {
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return lastUpdatedOn;
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}
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public void setLastUpdatedOn(Instant lastUpdatedOn) {
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this.lastUpdatedOn = lastUpdatedOn;
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}
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}

‎persistence-modules/hibernate-annotations/src/test/java/com/baeldung/hibernate/creationupdatetimestamp/HibernateCreationUpdateTimestampIntegrationTest.java‎

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package com.baeldung.hibernate.creationupdatetimestamp;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertNotEquals;
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import static org.junit.jupiter.api.Assertions.assertNotNull;
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import java.time.Instant;
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import org.h2.Driver;
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import org.hibernate.Session;
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import org.hibernate.SessionFactory;
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import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
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import org.hibernate.cfg.Configuration;
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import org.hibernate.dialect.H2Dialect;
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import org.hibernate.service.ServiceRegistry;
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import org.junit.jupiter.api.AfterAll;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Test;
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import com.baeldung.hibernate.creationupdatetimestamp.model.Book;
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class HibernateCreationUpdateTimestampIntegrationTest {
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private static SessionFactory sessionFactory;
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private Session session;
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@BeforeAll
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public static void beforeTests() {
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Configuration configuration = new Configuration().addAnnotatedClass(Book.class)
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.setProperty("hibernate.dialect", H2Dialect.class.getName())
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.setProperty("hibernate.connection.driver_class", Driver.class.getName())
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.setProperty("hibernate.connection.url", "jdbc:h2:mem:test")
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.setProperty("hibernate.connection.username", "sa")
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.setProperty("hibernate.connection.password", "")
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.setProperty("hibernate.hbm2ddl.auto", "update");
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ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties())
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.build();
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sessionFactory = configuration.buildSessionFactory(serviceRegistry);
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}
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@Test
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void whenCreatingEntity_ThenCreatedOnIsSet() {
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session = sessionFactory.openSession();
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session.beginTransaction();
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Book book = new Book();
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session.save(book);
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session.getTransaction()
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.commit();
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session.close();
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assertNotNull(book.getCreatedOn());
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}
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@Test
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void whenCreatingEntity_ThenCreatedOnAndLastUpdatedOnAreBothSet() {
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session = sessionFactory.openSession();
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session.beginTransaction();
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Book book = new Book();
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session.save(book);
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session.getTransaction()
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.commit();
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session.close();
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assertNotNull(book.getCreatedOn());
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assertNotNull(book.getLastUpdatedOn());
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}
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@Test
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void whenCreatingEntity_ThenCreatedOnAndLastUpdatedOnAreNotEqual() {
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session = sessionFactory.openSession();
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session.beginTransaction();
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Book book = new Book();
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session.save(book);
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session.getTransaction()
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.commit();
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session.close();
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assertNotEquals(book.getCreatedOn(), book.getLastUpdatedOn());
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}
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@Test
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void whenUpdatingEntity_ThenLastUpdatedOnIsUpdatedAndCreatedOnStaysTheSame() {
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session = sessionFactory.openSession();
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session.beginTransaction();
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Book book = new Book();
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session.save(book);
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session.flush();
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Instant createdOnAfterCreation = book.getCreatedOn();
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Instant lastUpdatedOnAfterCreation = book.getLastUpdatedOn();
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String newName = "newName";
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book.setTitle(newName);
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session.getTransaction()
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.commit();
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session.close();
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Instant createdOnAfterUpdate = book.getCreatedOn();
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Instant lastUpdatedOnAfterUpdate = book.getLastUpdatedOn();
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assertEquals(newName, book.getTitle());
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assertNotNull(createdOnAfterUpdate);
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assertNotNull(lastUpdatedOnAfterUpdate);
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assertEquals(createdOnAfterCreation, createdOnAfterUpdate);
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assertNotEquals(lastUpdatedOnAfterCreation, lastUpdatedOnAfterUpdate);
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}
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@AfterAll
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static void afterTests() {
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sessionFactory.close();
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}
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}

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