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Classes for building SessionFactory

Deepika Sahu answered on December 30, 2022 Popularity 2/10 Helpfulness 1/10

answer Classes for building SessionFactory

related Creating SessionFactory and Session

Classes for building SessionFactory

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ServiceRegistry: defines service registry contracts that applications are likely to want to utilize for configuring Hibernate behavior. The two popular implementations are BootstrapServiceRegistry, StandardServiceRegistry and SessionFactoryServiceRegistry.
BootstrapServiceRegistry: holds the services Hibernate will need during bootstrapping and at run time. For example, it can store the reference to ClassLoaderService, IntegratorService or StrategySelector through BootstrapServiceRegistry instance.
StandardServiceRegistry: hosts and manages services in runtime.
SessionFactoryServiceRegistry: is designed to hold services that need access to the SessionFactory, for example, EventListenerRegistry and StatisticsImplementor.
MetaData: an object containing the parsed representations of an application domain model and its mapping to a database.
MetadataSources: provides the source information to be parsed to form MetaData.

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Source: Grepper

Tags: building sessionfactory whatever

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Contributed on Dec 30 2022

Deepika Sahu

0 Answers Avg Quality 2/10

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Creating SessionFactory and Session

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import org.hibernate.SessionFactory;
import org.hibernate.boot.Metadata;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;

public class HibernateUtil {
	private static SessionFactory sessionFactory = buildSessionFactory();

	private static SessionFactory buildSessionFactory() 
	{
		try 
		{
			if (sessionFactory == null) 
			{
				StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder()
						.configure("hibernate.cfg.xml").build();
				
				Metadata metaData = new MetadataSources(standardRegistry)
						.getMetadataBuilder()
						.build();
				
				sessionFactory = metaData.getSessionFactoryBuilder().build();
			}
			return sessionFactory;
		} catch (Throwable ex) {
			throw new ExceptionInInitializerError(ex);
		}
	}

	public static SessionFactory getSessionFactory() {
		return sessionFactory;
	}

	public static void shutdown() {
		getSessionFactory().close();
	}
}

Popularity 5/10 Helpfulness 3/10 Language java

Source: howtodoinjava.com

Tags: session java sessionfactory

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Contributed on Dec 30 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Classes for building SessionFactory

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