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The JPA module allows to define transactional beans or methods. It's similar to the annotation you might know from the Spring framework. It's a simple alternative to EJBs (e.g. if you don't have an EJB container).
The page CODI Modules provides an overview about CODI modules and how to add them to your project.
For using the features described in this page, you have to add:
Hint
For using @PersistenceContext you can use e.g. the resources-plugin of OpenWebBeans
public class DataBaseProducer
{
@Produces
@PersistenceContext(unitName="default")
@Default
private EntityManager entityManager;
public void dispose(@Disposes @Default EntityManager entityManager)
{
if(entityManager.isOpen())
{
entityManager.close();
}
}
}
public class CustomService1
{
@Inject
protected EntityManager entityManager;
@Transactional
public void update(CustomEntity1 entity)
{
this.entityManager.merge(entity);
}
}
public class DataBaseProducer
{
@Produces
@PersistenceContext(unitName="default")
@Default
private EntityManager entityManager;
@Produces
@PersistenceContext(unitName="UserDB")
@Users
private EntityManager usersEntityManager;
public void disposeDefaultDB(@Disposes @Default EntityManager entityManager)
{
if(entityManager.isOpen())
{
entityManager.close();
}
}
public void disposeUserDB(@Disposes @Users EntityManager entityManager)
{
if(entityManager.isOpen())
{
entityManager.close();
}
}
}
public class CustomService2
{
@Inject
@Users
protected EntityManager entityManager;
@Transactional(Users.class)
public void update(CustomEntity2 entity)
{
this.entityManager.merge(entity);
}
}
