Pessoal, bom dia.
Estou com um problema que tá me tirando do sério e espero que vocês possam me ajudar. Não sei se tem muito a ver com o Vraptor, mas como eu estou utilizando dele, acredito que a solução possa estar no framework.
Seguinte, tenho a seguinte classe para armazenar meu usuário na sessão.
@Component
@SessionScoped
public class UserSession {
private User user;
}
Classe avaliação:
*/
@Entity
@Table
public class Rating {
@Id
@Column
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
@JoinColumn
@OneToOne(cascade = CascadeType.ALL)
private User user;
}
Classe usuário:
@Entity
@Table
public class User{
@Column
@OneToMany(mappedBy = "user", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
private Collection<Rating> ratings;
}
Quando eu tento salvar uma avalição, usando AJAX eu faço assim:
public void newRating(final Rating rating) throws InterruptedException {
rating.setDate(new GregorianCalendar());
rating.setUser(this.userSession.getUser());
this.dao.saveOrUpdate(rating);
}
E ai o resultaodo:
Caused by: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [br.com.realsale.entity.User#marcio.viegas89]
at org.hibernate.engine.StatefulPersistenceContext.checkUniqueness(StatefulPersistenceContext.java:638)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:305)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:246)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:112)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677)
at org.hibernate.engine.CascadingAction$5.cascade(CascadingAction.java:252)
at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:392)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:335)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:450)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:282)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:203)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:129)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:685)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:677)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:673)
at br.com.realsale.dao.DAO.saveOrUpdate(DAO.java:153)
at br.com.realsale.service.RatingService.newRating(RatingService.java:21)
at br.com.realsale.controller.RatingController.newRating(RatingController.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:61)
... 47 more
Qual seria a forma correta de fazer isso esse save ? Sabendo que eu posso chamar essa função 5 vezes seguidas da view.
Valeu.
