@OneToMany fails with FetchType.LAZY
Hi there,
everytime I try to fetch a OneToMany-Mapped collection of the type list it fails.
By invoking the customer's getEmails() method, I get the following exception which I don't understand really.
Maybe someone of you can help me with that.
Regards,
Hauke
JBoss: 4.0.4.GA
Hibernate: 3.2.0.cr2
Hibernate Annotations: 3.2.0.CR1
Hibernate EntityManager: 3.2.0.CR1
org.hibernate.LazyInitializationException
26.06.2006 20:04:13 org.hibernate.LazyInitializationException <init> SCHWERWIEGEND: failed to lazily initialize a collection of role: plyd.model.customer.CustomerAccount.emails, no session or session was closed org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: plyd.model.customer.CustomerAccount.emails, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350) at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343) at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86) at org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:246) at plyd.customer.customer.ShowPersonalDetailsPanel.setBean(ShowPersonalDetailsPanel.java:283) at plyd.customer.ManageCustomerPanel.setCustomer(ManageCustomerPanel.java:105) at plyd.customer.search.SearchCustomerAction.actionPerformed(SearchCustomerAction.java:60) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) Exception in thread "AWT-EventQueue-0" org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: plyd.model.customer.CustomerAccount.emails, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358) at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350) at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343) at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86) at org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:246) at plyd.customer.customer.ShowPersonalDetailsPanel.setBean(ShowPersonalDetailsPanel.java:283) at plyd.customer.ManageCustomerPanel.setCustomer(ManageCustomerPanel.java:105) at plyd.customer.search.SearchCustomerAction.actionPerformed(SearchCustomerAction.java:60) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
CustomerAccount Bean
@Entity
public class CustomerAccount implements Serializable {
@Id
@GeneratedValue
protected long id;
@OneToMany( cascade = CascadeType.ALL )
protected List<CustomerEMail> emails;
public CustomerAccount() {
super();
}
public long getId() {
return id;
}
public List<CustomerEMail> getEmails() {
if (emails == null) {
emails = new ArrayList<CustomerEMail>();
}
return emails;
}
public void setEmails(List<CustomerEMail> emails) {
this.emails = emails;
}
}
CustomerEMail Bean
@Entity
public class CustomerEMail implements Serializable {
@Id
@GeneratedValue
protected long id;
protected String email;
@Temporal( TemporalType.DATE )
protected Date created;
@Temporal( TemporalType.DATE )
protected Date verified;
public CustomerEMail() {
super();
}
public Date getCreated() {
return created;
}
public void setCreated(Date created) {
this.created = created;
}
public String getEmail() {
return email;
}
public void setEmail(String mail) {
email = mail;
}
public long getId() {
return id;
}
public Date getVerified() {
return verified;
}
public void setVerified(Date verified) {
this.verified = verified;
}
}
