io.jooby.hibernate

Class HibernateModule

java.lang.Object

io.jooby.hibernate.HibernateModule

All Implemented Interfaces:

Extension

public class HibernateModule
extends Object
implements Extension

Hibernate ORM module: https://jooby.io/modules/hibernate. Usage: - Add hikari and hibernate dependency - Install them

 {
   install(new HikariModule());

   install(new HibernateModule());
 }
 

- Use it

 {

   get("/", ctx -> {
     EntityManagerFactory emf = require(EntityManagerFactory.class);
     // do with emf
   });

 }
 

Optionally, you can require/inject a SessionFactory too:

 {

   get("/", ctx -> {
     SessionFactory sf = require(SessionFactory.class);
     // do with sf
   });

 }
 

By default the hibernate module scan the Jooby.getBasePackage() to register all the persistent classes. To scan a different package use the scan(String...) method. To turn it off you need to specify all the persistent classes at creation time, using the HibernateModule(Class[]) constructor. It is important to close either an EntityManager or Session created manually from EntityManagerFactory and SessionFactory. So code around session/entityManager looks like:

   get("/", ctx -> {
     EntityManager em = require(EntityManager.class);
     Transaction trx = em.getTransaction();
     try {
       trx.begin();

       // work with EntityManager compute a result

       trx.commit();

       return result;
     } catch(Exception x) {
       trx.rollback();
       throw x;
     } finally {
       em.close();
     }
   });
 

To avoid all these lines of code we do provide a TransactionalRequest decorator so code looks more simple:

   decorator(new TransactionalRequest());

   get("/", ctx -> {
     EntityManager em = require(EntityManager.class);
     // work with EntityManager compute a result
     return result;
   });
 

Transaction and lifecycle of session/entityManager is managed by TransactionalRequest. Complete documentation is available at: https://jooby.io/modules/hibernate.

Since:

2.0.0

Author:

edgar

Constructor Summary

Constructors

Constructor and Description
HibernateModule(Class... classes) Creates a new Hibernate module.
HibernateModule(String name, Class... classes) Creates a Hibernate module.

Method Summary

Modifier and Type	Method and Description
void	install(Jooby application)
HibernateModule	scan(String... packages) Scan packages and look for persistent classes.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.jooby.Extension

lateinit

Constructor Detail

HibernateModule

public HibernateModule(@Nonnull
                       String name,
                       Class... classes)

Creates a Hibernate module.

Parameters:

name - The name/key of the data source to attach.

classes - Persistent classes.

HibernateModule

public HibernateModule(Class... classes)

Creates a new Hibernate module. Use the default/first datasource and register objects using the db key.

Parameters:

classes - Persistent classes.

Method Detail

scan

@Nonnull
public HibernateModule scan(@Nonnull
                                     String... packages)

Scan packages and look for persistent classes.

Parameters:

packages - Package names.

Returns:

This module.

install

public void install(@Nonnull
                    Jooby application)

Specified by:

install in interface Extension