[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5976) ClassCastException when accessing attributes of embedded object through Join structure.

[Jaroslaw Lewandowski (JIRA)]

ClassCastException when accessing attributes of embedded object through Join structure.
---------------------------------------------------------------------------------------

                 Key: HHH-5976
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5976
             Project: Hibernate Core
          Issue Type: Bug
          Components: query-criteria
    Affects Versions: 3.6.0
            Reporter: Jaroslaw Lewandowski


Suppose you have class A which has attribute 'a' of type E which is @Embedded type. The following code using criteria API will throw ClassCastExeption

{code}
Root<A> root =...

Join<A,E> join = root.join(A_.e);

join.get(E_.attribute);  <=== accessing any attribute of E will throw ClassCastExeption. With the following stack trace:\
{code}

{code}
java.lang.ClassCastException: org.hibernate.ejb.metamodel.SingularAttributeImpl cannot be cast to javax.persistence.metamodel.ManagedType
	at org.hibernate.ejb.criteria.path.AbstractFromImpl.locateManagedType(AbstractFromImpl.java:151)
	at org.hibernate.ejb.criteria.path.AbstractFromImpl.locateAttributeInternal(AbstractFromImpl.java:145)
	at org.hibernate.ejb.criteria.path.AbstractPathImpl.locateAttribute(AbstractPathImpl.java:216)
	at org.hibernate.ejb.criteria.path.AbstractPathImpl.get(AbstractPathImpl.java:189)
{code}

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira