The version update description of the Hibernate Core RELOCATION framework in the Java class library
Hibernate is an open source object relationship mapping framework, which aims to simplify the interaction between Java applications and relational databases.Hibernate Core Relocation is a core module in the Hibernate framework, responsible for processing the mapping relationship between objects and databases.
The version update instructions can be used to understand the improvement and update brought by different versions of the Hibernate Core RELOCATION framework.The following is the update instructions of some versions of the framework:
1. Hibernate Core Relocation 5.0.0:
-The comprehensive optimization and reconstruction of the Hibernate core library.
-In new features of Java 8, such as Lambda expressions and function interfaces.
-The new date and time API in JDK1.8 to replace the old version of Java.util.date and java.sql.date.
-The repair some known bugs and performance issues.
Code example:
// Create Hibernate configuration object
Configuration configuration = new Configuration();
configuration.configure("hibernate.cfg.xml");
// Create a session factory
SessionFactory sessionFactory = configuration.buildSessionFactory();
// Create the meeting
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
// Create a physical class object
User user = new User();
user.setName("John Doe");
user.setAge(30);
// Save the entity to the database
session.save(user);
// Submit a transaction
transaction.commit();
// Close the session
session.close();
2. Hibernate Core Relocation 5.1.0:
-The support for Java 9 was introduced.
-In enhanced compatibility with JPA (Java Persistence API).
-Super more flexible and persistent context management mechanism.
-The support for storage procedures and functions.
Code example:
// Create persistent context
EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("persistence_unit_name");
EntityManager entityManager = entityManagerFactory.createEntityManager();
// Starting transaction
entityManager.getTransaction().begin();
// Create a physical class object
User user = new User();
user.setName("Jane Smith");
user.setAge(25);
// Save the entity to the database
entityManager.persist(user);
// Submit a transaction
entityManager.getTransaction().commit();
// Close persistent context
entityManager.close();
entityManagerFactory.close();
3. Hibernate Core Relocation 5.2.0:
-The support and performance of the relationship database.
-The support for NOSQL data storage, such as MongoDB and Redis.
-This is provided to be insertable, allowing custom cache providers to be allowed.
-In enhanced support for Java 8 and time types.
Code example:
// Create Hibernate configuration object
Configuration configuration = new Configuration();
configuration.configure("hibernate.cfg.xml");
// Add mongodb configuration
configuration.setProperty("hibernate.ogm.datastore.provider", "mongodb");
configuration.setProperty("hibernate.ogm.mongodb.host", "localhost");
configuration.setProperty("hibernate.ogm.mongodb.port", "27017");
// Create a session factory
SessionFactory sessionFactory = configuration.buildSessionFactory();
// Create the meeting
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
// Create a physical class object
User user = new User();
user.setName("Alice Johnson");
user.setAge(35);
// Save the entity to MongoDB database
session.save(user);
// Submit a transaction
transaction.commit();
// Close the session
session.close();
The above is the update description of some versions of the Hibernate Core Relocation framework and the corresponding Java code example. Through these examples, we can better understand and use the core regulating function of using the Hibernate framework.