What is jta data source

The same database can be referred to as a jta-datasource or as a resource local datasource This is correct. Hence, UserTransaction interface. And section And section 6. If mentioned as resource local datasource, transactions are not JTA aware. Code can use EntityTransaction interface but not UserTransaction interface Again, the wording is a bit confusing but I'd say that this is correct. Pascal Thivent Pascal Thivent k gold badges silver badges bronze badges.

Hi, Thank you so much for taking time and explaining it all so clearly!!! I see now that we use the term "resource local EntityManager" and not "resource local datasource". Yes I meant non-jta-datasource when I said "resource local datasource". Determines who controls the underlying transaction. Involves in JTA transactions. Can be used in managed classes. Involves in Non-JTA transactions.

EntityTransaction API is used. Regarding the wording, I didn't mean to be picky but since the spec defines a very precise and subtle terminology, using it makes the communication easier, which is why I insisted a bit about that and I'd recommend to read the sections I quoted partially.

PascalThivent The link to "this very interesting discussion" doesn't work, do you mean the following? Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The jar-file element specifies JAR files that are visible to the packaged persistence unit that contain managed persistence classes, whereas the class element explicitly names managed persistence classes.

The jta-data-source for JTA-aware data sources and non-jta-data-source for non-JTA-aware data sources elements specify the global JNDI name of the data source to be used by the container. If you package the persistence unit as a set of classes in a WAR file, persistence.

It's creation is an expensive process. For those who are familiar with Hibernate, an entity manager factory is very much like a session factory. Actually, an entity manager factory is a wrapper on top of a session factory. Calls to the entityManagerFactory are thread safe. Thanks to the EntityManagerFactory, you can retrieve an extended entity manager. The extended entity manager keep the same persistence context for the lifetime of the entity manager: in other words, the entities are still managed between two transactions unless you call entityManager.

You can see an entity manager as a small wrapper on top of an Hibernate session. Hibernate Entity Manager comes with Hibernate Validator configured out of the box. You don't have to override any event yourself. If you do not use Hibernate Validator annotations in your domain model, there will be no performance cost. For more information on Hibernate Validator, please refer to the Hibernate Annotations reference guide.

Chapter 2. Setup and configuration Prev Next. Setup and configuration. Configuration and bootstrapping. Table 2. Hibernate Entity Manager specific properties Property name Description hibernate. Cat read-write or hibernate. Cat read-write, MyRegion. The interceptor instance is shared by all Session instances. This interceptor has to implement org. Interceptor and have a no-arg constructor. This property can not be combined with hibernate.

The interceptor instance is specific to a given Session instance and hence can be non thread-safe. The list of event listeners is a comma separated fully qualified class name list eg. SecurityListener, com. AuditListener hibernate. Otherwise the persistence context will stay alive till the transaction completion: all objects will remain managed, and any change will be sy,chronized with the database default to false, ie wait the transaction completion.

Note It is important that you do not override hibernate. Event listeners. Hibernate Entity Manager default event listeners Event Listeners flush org. ValidateEventListener pre-insert org. ValidateEventListener pre-delete org.