Bootstrapping Hibernate 5 with Spring

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

// creating a Hibernate configuration
Configuration cfg = new Configuration();    
cfg.configure("hibernate.cfg.xml");

// creating a SessionFactory object
SessionFactory factory = cfg.buildSessionFactory();    

// opening a session
Session session = factory.openSession();    

// starting a transaction
Transaction transaction = session.beginTransaction();    

// creating and persisting an Employee object
Employee e1 = new Employee(222, "aritrik", 50000);    
session.persist(e1); // Persisting the object to the database    

// committing the transaction
transaction.commit(); // Transaction is committed    

// closing the session
session.close();

import org.apache.commons.dbcp.BasicDataSource;
import org.hibernate.HibernateException;
import org.hibernate.SessionFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;
import java.util.Properties;

@Configuration
@EnableTransactionManagement
public class HibernateConf {

    // configuring the Hibernate SessionFactory bean
    @Bean
    public LocalSessionFactoryBean sessionFactory() {
        LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
        sessionFactory.setDataSource(dataSource()); // setting the data source
        sessionFactory.setPackagesToScan("com.geeksforgeeks.hibernate.bootstrap.model"); // Package to scan for entity classes
        sessionFactory.setHibernateProperties(hibernateProperties()); // setting Hibernate properties

        return sessionFactory;
    }

    // configuring the data source bean
    @Bean
    public DataSource dataSource() {
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName("org.h2.Driver");
        dataSource.setUrl("jdbc:h2:mem:db;DB_CLOSE_DELAY=-1");
        dataSource.setUsername("admin");
        dataSource.setPassword("admin");

        return dataSource;
    }

    // configuring the Hibernate Transaction Manager bean
    @Bean
    public PlatformTransactionManager hibernateTransactionManager() 
    {
        HibernateTransactionManager transactionManager = new HibernateTransactionManager() 
        {
            @Override
            protected void doBegin(Object transaction, SessionFactory sessionFactory) throws HibernateException 
            {
                super.doBegin(transaction, sessionFactory);
            }
        };
        transactionManager.setSessionFactory(sessionFactory().getObject());
        return transactionManager;
    }

    // configuring Hibernate properties
    private Properties hibernateProperties() 
    {
        Properties hibernateProperties = new Properties();
        hibernateProperties.setProperty("hibernate.hbm2ddl.auto", "create-drop"); // database schema generation strategy
        hibernateProperties.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect"); // H2 database dialect

        return hibernateProperties;
    }
}

import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

// this is marked as a repository to indicate that it is a Spring bean responsible for data access
@Repository
public abstract class BarHibernateDAO {

    // Autowired annotation injects the SessionFactory bean into this field
    @Autowired
    private SessionFactory sessionFactory;

    // other methods or properties related to BarHibernateDAO can be added here

}