3.2.4. Building the SessionFactory

<div class="paragraph">

The final step in native bootstrapping is to build the `SessionFactory` itself.
Much like discussed above, if you are ok with the default behavior of building a `SessionFactory` from a `Metadata` reference, you can simply call the [`buildSessionFactory`](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/boot/Metadata.html#buildSessionFactory--) method on the `Metadata` object.

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<div class="paragraph">

However, if you would like to adjust that building process you will need to use `SessionFactoryBuilder` as obtained via [`Metadata#getSessionFactoryBuilder`. Again, see its [Javadocs](https://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/boot/Metadata.html#getSessionFactoryBuilder--) for more details.

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<div id="bootstrap-native-SessionFactory-example" class="exampleblock">
<div class="title">Example 210. Native Bootstrapping - Putting it all together</div>
<div class="content">
<div class="listingblock">
<div class="content">
<pre class="prettyprint highlight">`StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder()
    .configure( "org/hibernate/example/hibernate.cfg.xml" )
    .build();

Metadata metadata = new MetadataSources( standardRegistry )
    .addAnnotatedClass( MyEntity.class )
    .addAnnotatedClassName( "org.hibernate.example.Customer" )
    .addResource( "org/hibernate/example/Order.hbm.xml" )
    .addResource( "org/hibernate/example/Product.orm.xml" )
    .getMetadataBuilder()
    .applyImplicitNamingStrategy( ImplicitNamingStrategyJpaCompliantImpl.INSTANCE )
    .build();

SessionFactory sessionFactory = metadata.getSessionFactoryBuilder()
    .applyBeanManager( getBeanManager() )
    .build();`</pre>
</div>
</div>
</div>
</div>
<div class="paragraph">

The bootstrapping API is quite flexible, but in most cases it makes the most sense to think of it as a 3 step process:

</div>
<div class="olist arabic">

1. Build the StandardServiceRegistry
2. Build the Metadata

3. Use those 2 to build the SessionFactory </div>

   Example 211. Building `SessionFactory` via `SessionFactoryBuilder`

   `StandardServiceRegistry standardRegistry = new StandardServiceRegistryBuilder()

       .configure( "org/hibernate/example/hibernate.cfg.xml" )
       .build();
   

   Metadata metadata = new MetadataSources( standardRegistry )

   .addAnnotatedClass( MyEntity.class )
   .addAnnotatedClassName( "org.hibernate.example.Customer" )
   .addResource( "org/hibernate/example/Order.hbm.xml" )
   .addResource( "org/hibernate/example/Product.orm.xml" )
   .getMetadataBuilder()
   .applyImplicitNamingStrategy( ImplicitNamingStrategyJpaCompliantImpl.INSTANCE )
   .build();
   

   SessionFactoryBuilder sessionFactoryBuilder = metadata.getSessionFactoryBuilder();

   // Supply an SessionFactory-level Interceptor sessionFactoryBuilder.applyInterceptor( new CustomSessionFactoryInterceptor() );

   // Add a custom observer sessionFactoryBuilder.addSessionFactoryObservers( new CustomSessionFactoryObserver() );

   // Apply a CDI BeanManager ( for JPA event listeners ) sessionFactoryBuilder.applyBeanManager( getBeanManager() );

   SessionFactory sessionFactory = sessionFactoryBuilder.build();`</pre> </div> </div> </div> </div> </div> </div> </div> </div>