1 Reply Latest reply on Aug 18, 2006 3:54 AM by Carlo de Wolf

    Entity collection problem.

    Urs Wagner Novice

      Entity collection problem.

      Hello

      I try to get a many relationship collection of the Enitty language. Unfortunately I get an error message.


      @OneToMany(cascade={CascadeType.ALL})
      @JoinColumn(name="langid")
      public Collection<Assortment> getAssortments() {

      return assortments;
      }

      public void setAssortments(Collection<Assortment> assortments) {

      this.assortments = assortments;
      }




      used by: java.lang.reflect.InvocationTargetException
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:585)
      at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:400)
      ... 56 more
      Caused by: org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.flohmarkt.ejb.Language.assortments, 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.readSize(AbstractPersistentCollection.java:97)
      at org.hibernate.collection.PersistentBag.size(PersistentBag.java:222)
      at org.flohmarkt.web.WelcomePage.getLeftOverviewList(WelcomePage.java:69)
      ... 61 more