For some reason my class mapping doesn't work unless I use addAnnotatedClass(CategoryEntity.class) method. I've spent a lot of time already, but still can't figure out what's the problem here, could you tell me what I'm doing wrong?
hibernate.cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">admin</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQL81Dialect</property>
<property name="connection.url">jdbc:postgresql://localhost:5432/dvdrental</property>
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<mapping class="entity.CategoryEntity"/>
</session-factory>
</hibernate-configuration>
CategoryEntity.java
import javax.persistence.*;
import java.sql.Timestamp;
@Table(name = "category", schema = "public", catalog = "dvdrental")
@Entity
public class CategoryEntity {
private Integer categoryId;
private String name;
private Timestamp lastUpdate;
@Id
@Column(name = "category_id", nullable = false)
@GeneratedValue(strategy = GenerationType.IDENTITY)
public Integer getCategoryId() {
return categoryId;
}
public void setCategoryId(Integer categoryId) {
this.categoryId = categoryId;
}
@Basic
@Column(name = "name", nullable = false, length = 25)
public String getName() {
return name == null ? "" : name;
}
public void setName(String name) {
this.name = name;
}
@Basic
@Column(name = "last_update", nullable = false)
public Timestamp getLastUpdate() {
return lastUpdate;
}
public void setLastUpdate(Timestamp lastUpdate) {
this.lastUpdate = lastUpdate;
}
}
Main.java
public class Main {
private static SessionFactory sessionFactory;
public static void main(String[] args) {
System.out.println("Hibernate tutorial");
try {
Configuration configuration = new Configuration().configure(HibernateUtil.class.getResource("/hibernate.cfg.xml"));
StandardServiceRegistryBuilder serviceRegistryBuilder = new StandardServiceRegistryBuilder();
serviceRegistryBuilder.applySettings(configuration.getProperties());
ServiceRegistry serviceRegistry = serviceRegistryBuilder.build();
sessionFactory = configuration.buildSessionFactory(serviceRegistry);
} catch (Exception e) {
System.out.println("Failed to create session factory");
throw new ExceptionInInitializerError(e);
}
listAllCategories();
sessionFactory.close();
}
private static void listAllCategories() {
Session session = sessionFactory.openSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
List<CategoryEntity> categories = session.createCriteria(CategoryEntity.class).list();
for (CategoryEntity category : categories) {
System.out.println("Category id = " + category.getCategoryId()
+ ", name = " + category.getName() + ", last updated = " + category.getLastUpdate());
}
tx.commit();
} catch (HibernateException e) {
if (tx != null) { tx.rollback(); }
e.printStackTrace();
} finally {
session.close();
}
}
}
