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thombergsthombergs
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Merge pull request eugenp#5195 from priyeshmashelkar/master
BAEL-2096 Added classes for article
2 parents dbcbd1f + e146c2a commit 79c0562

5 files changed

Lines changed: 250 additions & 4 deletions

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‎hibernate5/src/main/java/com/baeldung/hibernate/HibernateUtil.java‎

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package com.baeldung.hibernate;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.net.URL;
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import java.util.Properties;
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import com.baeldung.hibernate.entities.DeptEmployee;
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import com.baeldung.hibernate.optimisticlocking.OptimisticLockingCourse;
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import com.baeldung.hibernate.optimisticlocking.OptimisticLockingStudent;
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import com.baeldung.hibernate.pessimisticlocking.Individual;
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import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
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import org.hibernate.service.ServiceRegistry;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.net.URL;
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import java.util.Properties;
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import com.baeldung.hibernate.pojo.Course;
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import com.baeldung.hibernate.pojo.Employee;
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import com.baeldung.hibernate.pojo.EntityDescription;
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import com.baeldung.hibernate.pojo.OrderEntry;
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import com.baeldung.hibernate.pojo.OrderEntryIdClass;
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import com.baeldung.hibernate.pojo.OrderEntryPK;
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import com.baeldung.hibernate.pojo.Person;
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import com.baeldung.hibernate.pojo.Phone;
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import com.baeldung.hibernate.pojo.PointEntity;
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import com.baeldung.hibernate.pojo.PolygonEntity;
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import com.baeldung.hibernate.pojo.Product;
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import com.baeldung.hibernate.pojo.Student;
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import com.baeldung.hibernate.pojo.TemporalValues;
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import com.baeldung.hibernate.pojo.User;
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import com.baeldung.hibernate.pojo.UserProfile;
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import com.baeldung.hibernate.pojo.inheritance.Animal;
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import com.baeldung.hibernate.pojo.inheritance.Bag;
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import com.baeldung.hibernate.pojo.inheritance.Book;
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import com.baeldung.hibernate.pojo.inheritance.Car;
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import com.baeldung.hibernate.pojo.inheritance.MyEmployee;
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import com.baeldung.hibernate.pojo.inheritance.MyProduct;
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import com.baeldung.hibernate.pojo.inheritance.Pen;
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import com.baeldung.hibernate.pojo.inheritance.Pet;
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import com.baeldung.hibernate.pojo.inheritance.Vehicle;
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public class HibernateUtil {
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private static SessionFactory sessionFactory;
@@ -72,6 +98,8 @@ private static SessionFactory makeSessionFactory(ServiceRegistry serviceRegistry
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metadataSources.addAnnotatedClass(PessimisticLockingCourse.class);
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metadataSources.addAnnotatedClass(com.baeldung.hibernate.pessimisticlocking.Customer.class);
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metadataSources.addAnnotatedClass(com.baeldung.hibernate.pessimisticlocking.Address.class);
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metadataSources.addAnnotatedClass(DeptEmployee.class);
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metadataSources.addAnnotatedClass(com.baeldung.hibernate.entities.Department.class);
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metadataSources.addAnnotatedClass(OptimisticLockingCourse.class);
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metadataSources.addAnnotatedClass(OptimisticLockingStudent.class);
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‎hibernate5/src/main/java/com/baeldung/hibernate/entities/Department.java‎

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package com.baeldung.hibernate.entities;
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import java.util.List;
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import javax.persistence.*;
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@Entity
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public class Department {
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@Id
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@GeneratedValue(strategy = GenerationType.SEQUENCE)
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private long id;
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private String name;
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@OneToMany(mappedBy="department")
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private List<DeptEmployee> employees;
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public Department(String name) {
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this.name = name;
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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 getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public List<DeptEmployee> getEmployees() {
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return employees;
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}
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public void setEmployees(List<DeptEmployee> employees) {
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this.employees = employees;
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}
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}

‎hibernate5/src/main/java/com/baeldung/hibernate/entities/DeptEmployee.java‎

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package com.baeldung.hibernate.entities;
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import javax.persistence.*;
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@Entity
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public class DeptEmployee {
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@Id
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@GeneratedValue(strategy = GenerationType.SEQUENCE)
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private long id;
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private String employeeNumber;
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private String designation;
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private String name;
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@ManyToOne
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private Department department;
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public DeptEmployee(String name, String employeeNumber, Department department) {
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this.name = name;
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this.employeeNumber = employeeNumber;
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this.department = department;
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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 getEmployeeNumber() {
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return employeeNumber;
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}
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public void setEmployeeNumber(String employeeNumber) {
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this.employeeNumber = employeeNumber;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public Department getDepartment() {
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return department;
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}
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public void setDepartment(Department department) {
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this.department = department;
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}
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public String getDesignation() {
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return designation;
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}
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public void setDesignation(String designation) {
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this.designation = designation;
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}
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}

‎hibernate5/src/main/java/com/baeldung/hibernate/pojo/Result.java‎

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package com.baeldung.hibernate.pojo;
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public class Result {
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private String employeeName;
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private String departmentName;
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public Result(String employeeName, String departmentName) {
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this.employeeName = employeeName;
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this.departmentName = departmentName;
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}
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public Result() {
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}
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public String getEmployeeName() {
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return employeeName;
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}
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public void setEmployeeName(String employeeName) {
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this.employeeName = employeeName;
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}
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public String getDepartmentName() {
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return departmentName;
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}
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public void setDepartmentName(String departmentName) {
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this.departmentName = departmentName;
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}
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}

‎hibernate5/src/test/java/com/baeldung/hibernate/CustomClassIntegrationTest.java‎

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package com.baeldung.hibernate;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import java.io.IOException;
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import java.util.List;
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import com.baeldung.hibernate.entities.DeptEmployee;
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import org.hibernate.Session;
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import org.hibernate.Transaction;
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import org.hibernate.query.Query;
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import org.hibernate.transform.Transformers;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import com.baeldung.hibernate.entities.Department;
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import com.baeldung.hibernate.pojo.Result;
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public class CustomClassIntegrationTest {
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private Session session;
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private Transaction transaction;
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@BeforeEach
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public void setUp() throws IOException {
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session = HibernateUtil.getSessionFactory().openSession();
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transaction = session.beginTransaction();
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session.createNativeQuery("delete from manager").executeUpdate();
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session.createNativeQuery("delete from department").executeUpdate();
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Department department = new Department("Sales");
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DeptEmployee employee = new DeptEmployee("John Smith", "001", department);
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session.persist(department);
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session.persist(employee);
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transaction.commit();
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transaction = session.beginTransaction();
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}
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@Test
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public void whenAllManagersAreSelected_ThenObjectGraphIsReturned() {
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Query<DeptEmployee> query = session.createQuery("from com.baeldung.hibernate.entities.DeptEmployee");
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List<DeptEmployee> deptEmployees = query.list();
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DeptEmployee deptEmployee = deptEmployees.get(0);
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assertEquals("John Smith", deptEmployee.getName());
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assertEquals("Sales", deptEmployee.getDepartment().getName());
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}
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@Test
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public void whenIndividualPropertiesAreSelected_ThenObjectArrayIsReturned() {
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Query query = session.createQuery("select m.name, m.department.name from com.baeldung.hibernate.entities.DeptEmployee m");
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List managers = query.list();
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Object[] manager = (Object[]) managers.get(0);
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assertEquals("John Smith", manager[0]);
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assertEquals("Sales", manager[1]);
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}
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@Test
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public void whenResultConstructorInSelect_ThenListOfResultIsReturned() {
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Query<Result> query = session.createQuery("select new com.baeldung.hibernate.pojo.Result(m.name, m.department.name) "
60+
+ "from DeptEmployee m");
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List<Result> results = query.list();
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Result result = results.get(0);
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assertEquals("John Smith", result.getEmployeeName());
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assertEquals("Sales", result.getDepartmentName());
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}
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@Test
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public void whenResultTransformerOnQuery_ThenListOfResultIsReturned() {
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Query query = session.createQuery("select m.name as employeeName, m.department.name as departmentName "
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+ "from com.baeldung.hibernate.entities.DeptEmployee m");
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query.setResultTransformer(Transformers.aliasToBean(Result.class));
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List<Result> results = query.list();
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Result result = results.get(0);
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assertEquals("John Smith", result.getEmployeeName());
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assertEquals("Sales", result.getDepartmentName());
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}
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}

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