entitymanager

I have an Entity Manager in my EJB @PersistenceContext(unitName = "cnsbEntities") private EntityManager em; I populate an object and then I commit it in my DB, but if I have an exception, for duplicate ID, I can't catch it and I don't know why. try{ em.merge(boelLog); } catch (Exception e){ System.out.println("Generic Exception"); } JPA uses transactions to send entity modifications to the database. You can specify those transactions manually through Bean Managed Transactions (BMT) or let the application server do it for you (Container Managed Transactions; the default). So, you need to catch

I'm working on a maven project which uses seam 2.2.0, hibernate 3.5.0-CR-2 as JPA provider, DB2 as database server and Websphere 7 as application server. Now I'm facing de following problem: In my EJBs that are seen also as SEAM components I want to use the EntityManager from EJB container (@PersistenceContext private EntityManager em) not Seam's EntityManager (@In private EntityManager em). But this is the problem, I cannot obtain an EntityManager using @PersistenceContext. On server logs it sais that it cannot create an EntityManagerFactory and gets a ClassCastException: java.lang

I am newbie in Spring. I am trying to setup simple web application with Spring 3.1.3 and JPA 2.0 I have added all necessary libs to the WEB-INF/lib. There is no errors during the startup but entityManager in my DaoImpl file is null. So, this is my configuration: persistance.xml <?xml version="1.0" encoding="UTF-8"?> <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> <persistence-unit name="fcmsServer

I have a CDI Managed Bean (a bean annotated with @Named that is used on JSF) that has a Stateful Session Bean injected. This session bean is like a service, it has the entity manager (annotated with @PersistenceContext(type= PersistenceContextType.EXTENDED)) and expose come methods to manipulate some entities. Those entities are on the managed bean, who is ConversationScoped. Then, the JSF calls a method of the managed bean and the managed bean calls some method of the "service" (the stateful session bean). I don't know if this is the best design, but it was working well. But there's an Entity

I have this function in Entity class but the getDoctrine do not fond... public function getObject() { $em = $this->getDoctrine()->getEntityManager(); switch($this->objectType) { case 'video': return $em->getRepository('fdj2012AdminBundle:Video')->find($this->objectId); break; case 'default': return false; break; } } How to use entityManager inside my Entity ? Actually Entity shouldn't know about EM. I use Event Listeners if I need advance logic in my Entity. When you register Listeners like services you can pass args there, like a EM or Container and get them inside Listener class. Symfony Doc

I'm using Persistence unit and Entity classes from Database, all in a JavaFx fxml Application, I succeeded importing all my tables as entities in my Model, the proble is that I get an exceptions and errors when I try to insert into an entity, here's my entire code public class SampleController implements Initializable { @PersistenceContext(unitName="RawdaPU") private EntityManager em; @FXML private Label label; @FXML private void handleButtonAction(ActionEvent event) { Moyendidactique moyenDidactique = new Moyendidactique("1", "moyen1", "Type1"); em.persist(moyenDidactique); em.close(); }