first commit with existing project files
This commit is contained in:
Vincent Guillet
39
hibernate-project/src/main/java/com/humanbooster/App.java
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39
hibernate-project/src/main/java/com/humanbooster/App.java
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package com.humanbooster;
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import com.humanbooster.dao.UserDao;
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import com.humanbooster.model.Article;
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import com.humanbooster.model.User;
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import com.humanbooster.service.UserService;
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import org.hibernate.SessionFactory;
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import org.hibernate.boot.Metadata;
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import org.hibernate.boot.MetadataSources;
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import org.hibernate.boot.registry.StandardServiceRegistry;
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import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
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import java.util.List;
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public class App {
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public static void main(String[] args) {
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System.out.println("Démarrage de l'application");
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StandardServiceRegistry registry = new StandardServiceRegistryBuilder()
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.configure()
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.build();
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Metadata metadata = new MetadataSources(registry).buildMetadata();
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SessionFactory sessionFactory = metadata.buildSessionFactory();
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System.out.println("Connexion réussie !");
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User user = new User("Bob", "bob@example.com", List.of(
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new Article("Article 1", "Contenu de l'article 1", null),
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new Article("Article 2", "Contenu de l'article 2", null)
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));
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UserService userService = new UserService(new UserDao(sessionFactory));
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List<User> existingUsers = userService.getAllUsers();
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existingUsers.forEach(u -> userService.deleteUser(u.getId()));
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userService.createUser(user);
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}
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}
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package com.humanbooster.dao;
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import com.humanbooster.model.Article;
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import org.hibernate.Session;
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import org.hibernate.SessionFactory;
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public class ArticleDto extends GenericDaoImpl<Article,Long> {
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public ArticleDto(SessionFactory sessionFactory, Class<Article> entityClass) {
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super(sessionFactory, entityClass);
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}
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public Article findByAuthor(String author) {
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try(Session session = sessionFactory.openSession()){
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session.beginTransaction();
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Article article = session.createQuery("FROM Article WHERE author = :author", Article.class)
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.setParameter("author", author)
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.uniqueResult();
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session.getTransaction().commit();
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return article;
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}
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}
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public Article findByTitle(String title) {
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try(Session session = sessionFactory.openSession()){
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session.beginTransaction();
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Article article = session.createQuery("FROM Article WHERE title = :title", Article.class)
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.setParameter("title", title)
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.uniqueResult();
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session.getTransaction().commit();
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return article;
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}
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}
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}
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package com.humanbooster.dao;
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import java.util.List;
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public interface GenericDao<T, ID> {
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void create(T entity);
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T read(ID id);
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void update(T entity);
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void delete(ID id);
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List<T> findAll();
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}
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@@ -0,0 +1,65 @@
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package com.humanbooster.dao;
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import org.hibernate.Session;
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import org.hibernate.SessionFactory;
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import java.util.List;
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public abstract class GenericDaoImpl<T, ID> implements GenericDao<T, ID> {
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private final Class<T> entityClass;
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protected SessionFactory sessionFactory;
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public GenericDaoImpl(SessionFactory sessionFactory, Class<T> entityClass) {
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this.sessionFactory = sessionFactory;
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this.entityClass = entityClass;
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}
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@Override
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public void create(T entity) {
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try (Session session = sessionFactory.openSession()) {
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session.beginTransaction();
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session.persist(entity);
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session.getTransaction().commit();
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}
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}
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@Override
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public T read(ID id) {
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try (Session session = sessionFactory.openSession()) {
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session.beginTransaction();
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T entity = session.get(entityClass, id);
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session.getTransaction().commit();
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return entity;
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}
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}
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@Override
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public void update(T entity) {
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try (Session session = sessionFactory.openSession()) {
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session.beginTransaction();
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session.merge(entity);
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session.getTransaction().commit();
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}
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}
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@Override
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public void delete(ID id) {
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try (Session session = sessionFactory.openSession()) {
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session.beginTransaction();
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T entity = session.get(entityClass, id);
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if (entity != null) session.remove(entity);
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session.getTransaction().commit();
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}
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}
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@Override
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public List<T> findAll() {
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try (Session session = sessionFactory.openSession()) {
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session.beginTransaction();
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List<T> entities = session.createQuery("from " + entityClass.getName(), entityClass).list();
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session.getTransaction().commit();
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return entities;
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}
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}
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}
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package com.humanbooster.dao;
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import com.humanbooster.model.User;
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import org.hibernate.Session;
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import org.hibernate.SessionFactory;
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public class UserDao extends GenericDaoImpl<User,Long> {
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public UserDao(SessionFactory sessionFactory) {
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super(sessionFactory, entityClass);
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}
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public User findByEmail(String email) {
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try(Session session = sessionFactory.openSession()){
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session.beginTransaction();
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User user = session.createQuery("FROM User WHERE email = :email", User.class)
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.setParameter("email", email)
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.uniqueResult();
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session.getTransaction().commit();
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return user;
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}
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}
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}
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package com.humanbooster.model;
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import jakarta.persistence.*;
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@Entity
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public class Article {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Long id;
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@Column(name = "title", nullable = false, length = 100)
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private String title;
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@Column(name = "content", nullable = false)
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private String content;
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@ManyToOne
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@JoinColumn(name="author_id", nullable=false)
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private User author;
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public Article (String titre, String content, User author){
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this.title = title;
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this.content = content;
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this.author = author;
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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 String getContent() {
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return content;
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}
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public void setContent(String content) {
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this.content = content;
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}
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public User getAuthor() {
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return author;
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}
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public void setAuthor(User author) {
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this.author = author;
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}
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}
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package com.humanbooster.model;
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import jakarta.persistence.*;
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import java.util.List;
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@Entity
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public class User {
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@Id
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@GeneratedValue (strategy = GenerationType.IDENTITY)
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private Long id;
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private String name;
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private String email;
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@OneToMany(mappedBy="author", cascade= CascadeType.ALL, fetch = FetchType.LAZY)
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private List<Article> articles;
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public User(String name, String email, List<Article> articles) {
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this.name = name;
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this.email = email;
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this.articles = articles;
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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 String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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public List<Article> getArticles() {
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return articles;
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}
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public void setArticles(List<Article> articles) {
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this.articles = articles;
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}
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}
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package com.humanbooster.service;
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import com.humanbooster.dao.ArticleDto;
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import com.humanbooster.model.Article;
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import java.util.List;
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public class ArticleService {
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public final ArticleDto articleDto;
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public ArticleService(ArticleDto articleDto) {
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this.articleDto = articleDto;
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}
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public void createArticle(Article article) {
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articleDto.create(article);
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}
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public void getArticleById(Long id) {
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articleDto.read(id);
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}
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public void updateArticle(Article article) {
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articleDto.update(article);
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}
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public void deleteArticle(Long id) {
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articleDto.delete(id);
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}
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public List<Article> getAllArticles() {
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return articleDto.findAll();
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}
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public Article findArticleByAuthor(String author) {
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return articleDto.findByAuthor(author);
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}
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public Article findArticleByTitle(String title) {
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return articleDto.findByTitle(title);
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}
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}
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@@ -0,0 +1,39 @@
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package com.humanbooster.service;
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import com.humanbooster.dao.UserDao;
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import com.humanbooster.model.User;
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import java.util.List;
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public class UserService {
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private final UserDao userDao;
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public UserService(UserDao userDao) {
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this.userDao = userDao;
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}
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public void createUser(User user) {
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userDao.create(user);
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}
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public void getUserById(Long id) {
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userDao.read(id);
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}
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public void updateUser(User user) {
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userDao.update(user);
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}
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public void deleteUser(Long id) {
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userDao.delete(id);
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}
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public List<User> getAllUsers() {
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return userDao.findAll();
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}
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public User findUserByEmail(String email) {
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return userDao.findByEmail(email);
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}
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}
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22
hibernate-project/src/main/resources/hibernate.cfg.xml
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22
hibernate-project/src/main/resources/hibernate.cfg.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE hibernate-configuration PUBLIC
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"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
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"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
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<hibernate-configuration>
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<session-factory>
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<property name="jakarta.persistence.jdbc.driver">com.mysql.cj.jdbc.Driver</property>
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<property name="jakarta.persistence.jdbc.url">jdbc:mysql://mysql:3306/testdb?useSSL=false&allowPublicKeyRetrieval=true</property>
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<property name="jakarta.persistence.jdbc.user">root</property>
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<property name="jakarta.persistence.jdbc.password">root</property>
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<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
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<property name="hibernate.hbm2ddl.auto">update</property>
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<property name="hibernate.show_sql">true</property>
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<property name="hibernate.format_sql">true</property>
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<mapping class="com.humanbooster.model.User"/>
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<mapping class="com.humanbooster.model.Article"/>
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</session-factory>
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</hibernate-configuration>
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