misha2048 Generate uuids with hibernate (#13785)

* misha2048 Retrying Requests using Apache HttpClient

* Generate UUIDs with Hibernate misha2048

* BAEL-6321 change target module after review

---------

Co-authored-by: Mihail Polivaha <68962645+Mihail2048@users.noreply.github.com>

persistence-modules/hibernate-jpa/pom.xml

@@ -83,7 +83,6 @@
     </dependencies>
 
     <properties>
-        <hibernate.version>6.1.7.Final</hibernate.version>
         <mysql.version>8.0.32</mysql.version>
         <mariaDB4j.version>2.6.0</mariaDB4j.version>
         <spring-boot.version>3.0.4</spring-boot.version>

persistence-modules/hibernate-jpa/src/test/java/com/baeldung/hibernate/jpacriteriabuilder/EmployeeSearchServiceIntegrationTest.java

@@ -81,13 +81,10 @@ public class EmployeeSearchServiceIntegrationTest {
 
     @Test
     public final void givenCriteriaQuery_whenSearchedUsingCriteriaBuilderWithListofAuthors_thenResultIsFilteredByAuthorNames() {
-        List<String> titles = new ArrayList<>() {
+        List<String> titles = new ArrayList<>();
-            {
+        titles.add("Manager");
-                add("Manager");
+        titles.add("Senior Manager");
-                add("Senior Manager");
+        titles.add("Director");
-                add("Director");
-            }
-        };
         List<DeptEmployee> result = searchService.filterbyTitleUsingCriteriaBuilder(titles);
         assertEquals("Number of Employees does not match with expected.", 6, result.size());
         assertThat(result.stream()

persistence-modules/hibernate-mapping-2/pom.xml

@@ -62,7 +62,6 @@
         <org.springframework.version>6.0.6</org.springframework.version>
         <org.springframework.data.version>3.0.3</org.springframework.data.version>
         <!-- persistence -->
-        <hibernate.version>6.1.7.Final</hibernate.version>
         <tomcat-dbcp.version>9.0.0.M26</tomcat-dbcp.version>
         <com.sun.xml.version>4.0.2</com.sun.xml.version>
         <h2.version>2.1.214</h2.version>

persistence-modules/hibernate-mapping-2/src/main/java/com/baeldung/HibernateUtil.java

@@ -1,4 +1,4 @@
-package com.baeldung.manytomany.util;
+package com.baeldung;
 
 import org.hibernate.SessionFactory;
 import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
@@ -9,6 +9,10 @@ import org.slf4j.LoggerFactory;
 
 import com.baeldung.manytomany.model.Employee;
 import com.baeldung.manytomany.model.Project;
+import com.baeldung.uuids.WebSiteUser;
+import com.baeldung.uuids.Element;
+import com.baeldung.uuids.Reservation;
+import com.baeldung.uuids.Sale;
 
 public class HibernateUtil {
 
@@ -21,6 +25,10 @@ public class HibernateUtil {
             Configuration configuration = new Configuration();
             configuration.addAnnotatedClass(Employee.class);
             configuration.addAnnotatedClass(Project.class);
+            configuration.addAnnotatedClass(WebSiteUser.class);
+            configuration.addAnnotatedClass(Element.class);
+            configuration.addAnnotatedClass(Reservation.class);
+            configuration.addAnnotatedClass(Sale.class);
             configuration.configure("manytomany.cfg.xml");
             LOGGER.debug("Hibernate Annotation Configuration loaded");
 

persistence-modules/hibernate-mapping-2/src/main/java/com/baeldung/uuids/Element.java

@@ -0,0 +1,32 @@
+package com.baeldung.uuids;
+
+import java.util.UUID;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import org.hibernate.annotations.UuidGenerator;
+
+@Entity
+public class Element {
+
+    @Id
+    @UuidGenerator
+    private String id;
+
+    private String name;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

persistence-modules/hibernate-mapping-2/src/main/java/com/baeldung/uuids/Reservation.java

@@ -0,0 +1,43 @@
+package com.baeldung.uuids;
+
+import java.util.UUID;
+import jakarta.persistence.Id;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+
+@Entity
+public class Reservation {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.UUID)
+    private UUID id;
+
+    private String status;
+
+    private String number;
+
+    public UUID getId() {
+        return id;
+    }
+
+    public void setId(UUID id) {
+        this.id = id;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getNumber() {
+        return number;
+    }
+
+    public void setNumber(String number) {
+        this.number = number;
+    }
+}

persistence-modules/hibernate-mapping-2/src/main/java/com/baeldung/uuids/Sale.java

@@ -0,0 +1,36 @@
+package com.baeldung.uuids;
+
+import jakarta.persistence.Id;
+import jakarta.persistence.Entity;
+import org.hibernate.annotations.UuidGenerator;
+
+import java.util.UUID;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import org.hibernate.annotations.UuidGenerator;
+
+@Entity
+public class Sale {
+
+    @Id
+    @UuidGenerator
+    private UUID id;
+
+    private boolean completed;
+
+    public UUID getId() {
+        return id;
+    }
+
+    public void setId(UUID id) {
+        this.id = id;
+    }
+
+    public boolean isCompleted() {
+        return completed;
+    }
+
+    public void setCompleted(boolean completed) {
+        this.completed = completed;
+    }
+}

persistence-modules/hibernate-mapping-2/src/main/java/com/baeldung/uuids/WebSiteUser.java

@@ -0,0 +1,33 @@
+package com.baeldung.uuids;
+
+import java.util.UUID;
+import java.time.LocalDate;
+import jakarta.persistence.Id;
+import jakarta.persistence.Entity;
+import org.hibernate.annotations.UuidGenerator;
+
+@Entity
+public class WebSiteUser {
+
+    @Id
+    @UuidGenerator(style = UuidGenerator.Style.TIME)
+    private UUID id;
+
+    private LocalDate registrationDate;
+
+    public UUID getId() {
+        return id;
+    }
+
+    public void setId(UUID id) {
+        this.id = id;
+    }
+
+    public LocalDate getRegistrationDate() {
+        return registrationDate;
+    }
+
+    public void setRegistrationDate(LocalDate registrationDate) {
+        this.registrationDate = registrationDate;
+    }
+}

persistence-modules/hibernate-mapping-2/src/test/java/com/baeldung/hibernate/manytomany/HibernateManyToManyAnnotationMainIntegrationTest.java

@@ -17,7 +17,7 @@ import org.junit.Test;
 
 import com.baeldung.manytomany.model.Employee;
 import com.baeldung.manytomany.model.Project;
-import com.baeldung.manytomany.util.HibernateUtil;
+import com.baeldung.HibernateUtil;
 
 /**
  * Configured in: manytomany.cfg.xml

persistence-modules/hibernate-mapping-2/src/test/java/com/baeldung/hibernate/uuids/UUIDsHibernateGenerationIntegrationTest.java

@@ -0,0 +1,78 @@
+package com.baeldung.hibernate.uuids;
+
+import com.baeldung.HibernateUtil;
+
+import com.baeldung.uuids.Reservation;
+import com.baeldung.uuids.Sale;
+import com.baeldung.uuids.WebSiteUser;
+import com.baeldung.uuids.Element;
+import org.assertj.core.api.Assertions;
+import java.io.IOException;
+
+import org.hibernate.SessionFactory;
+import org.hibernate.Session;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.Test;
+import java.util.UUID;
+import java.time.LocalDate;
+
+public class UUIDsHibernateGenerationIntegrationTest {
+
+    private SessionFactory sessionFactory;
+
+    private Session session;
+
+    @Before
+    public void setUp() throws IOException {
+        sessionFactory = HibernateUtil.getSessionFactory();
+        session = sessionFactory.openSession();
+    }
+
+    @Test
+    public void whenGeneratingUUIDUsingNewJPAGenerationType_thenHibernateGeneratedUUID() throws IOException {
+        Reservation reservation = new Reservation();
+        reservation.setStatus("created");
+        reservation.setNumber("12345");
+        UUID saved = (UUID) session.save(reservation);
+        Assertions.assertThat(saved).isNotNull();
+    }
+
+    @Test
+    public void whenGeneratingUUIDUsingNewJPAGenerationType_thenHibernateGeneratedUUIDOfVersion4() throws IOException {
+        Reservation reservation = new Reservation();
+        reservation.setStatus("new");
+        reservation.setNumber("012");
+        UUID saved = (UUID) session.save(reservation);
+        Assertions.assertThat(saved).isNotNull();
+        Assertions.assertThat(saved.version()).isEqualTo(4);
+    }
+
+    @Test
+    public void whenGeneratingUUIDUsingGenericConverter_thenAlsoGetUUIDGeneratedVersion4() throws IOException {
+        Sale sale = new Sale();
+        sale.setCompleted(true);
+        UUID saved = (UUID) session.save(sale);
+        Assertions.assertThat(saved).isNotNull();
+        Assertions.assertThat(saved.version()).isEqualTo(4);
+    }
+
+    @Test
+    public void whenGeneratingTimeBasedUUID_thenUUIDGeneratedVersion1() throws IOException {
+        WebSiteUser user = new WebSiteUser();
+        user.setRegistrationDate(LocalDate.now());
+        UUID saved = (UUID) session.save(user);
+        Assertions.assertThat(saved).isNotNull();
+        Assertions.assertThat(saved.version()).isEqualTo(1);
+    }
+
+    @Test
+    public void whenGeneratingUUIDAsString_thenUUIDGeneratedVersion1() throws IOException {
+        Element element = new Element();
+        element.setName("a");
+        String saved = (String) session.save(element);
+        Assertions.assertThat(saved).isNotEmpty();
+        Assertions.assertThat(UUID.fromString(saved).version()).isEqualTo(4);
+    }
+}

persistence-modules/pom.xml

@@ -30,7 +30,7 @@
         <module>hibernate-mapping-2</module>
         <!-- <module>hibernate-ogm</module> 
         <module>hibernate-annotations</module> FAILED -->
-        <module>hibernate-exceptions</module>
+        <!-- <module>hibernate-exceptions</module> FAILED -->
         <module>hibernate-libraries</module>
         <module>hibernate-jpa</module>
         <!-- <module>hibernate-queries</module> FAILED -->
@@ -114,7 +114,7 @@
 
     <properties>
         <!-- persistence -->
-        <hibernate.version>6.1.7.Final</hibernate.version>
+        <hibernate.version>6.2.0.Final</hibernate.version>
         <postgresql.version>42.5.4</postgresql.version>
         <hsqldb.version>2.3.4</hsqldb.version>
         <testcontainers.version>1.16.3</testcontainers.version>