[Hibernate] illegally attempted to associate a proxy with two open Sessions
Bonjour a tous,
j'ai l'exception suivante quand j'effectue certaine operation, et je ne trouve pas pourquoi.
Ca se produit entre autre quand je fait un delete et un update. (mais par sur tous mes objets).
Code:
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| public class Hibernate
{
protected static final SessionFactory sessionFactory;
static
{
try
{
// Create the SessionFactory from hibernate.cfg.xml
sessionFactory = new Configuration().configure().buildSessionFactory();
}
catch (Throwable ex)
{
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public void create(Object obj)
{
Session session = sessionFactory.openSession();
session.getTransaction().begin();
session.save(obj);
session.getTransaction().commit();
}
public void refresh(Object obj)
{
Session session = sessionFactory.openSession();
session.getTransaction().begin();
session.refresh(obj);
session.getTransaction().commit();
}
public void update(Object obj)
{
Session session = sessionFactory.openSession();
session.getTransaction().begin();
session.saveOrUpdate(obj);
session.getTransaction().commit();
}
public void delete(Object obj)
{
Session session = sessionFactory.openSession();
session.getTransaction().begin();
session.delete(obj);
session.getTransaction().commit();
}
protected String protectString(String toProtect)
{
return (toProtect.replace("'", "''"));
}
} |
Code:
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| public class DAOPerson extends Hibernate
{
@SuppressWarnings("unchecked")
public List<Person> findByName(String name)
{
Session session = sessionFactory.openSession();
List<Person> List = session.createQuery("FROM Person WHERE FirstName LIKE '%" + this.protectString(name) + "%' OR LastName LIKE '%" + this.protectString(name) + "%' ORDER BY LastName ASC, FirstName ASC").list();
return (List);
}
@SuppressWarnings("unchecked")
public List<Person> findByFullName(String lastName, String firstName)
{
Session session = sessionFactory.openSession();
List<Person> List = session.createQuery("FROM Person WHERE FirstName='" + this.protectString(firstName) + "' AND LastName='" + this.protectString(lastName) + "'").list();
return (List);
}
@SuppressWarnings("unchecked")
public List<Person> findAll()
{
Session session = sessionFactory.openSession();
List<Person> List = (List<Person>)session.createQuery("From Person ORDER BY LastName ASC, FirstName ASC").list();
return (List);
}
} |
Si vous pouviez me guider ca serait sympa car je ne trouve vraiment pas, je ne comprend meme pas l'exception.
J'ai trouver deux autre topics la dessus mais rien de concluant.
Merci d'avance.
Cordialement,
NeoKript
