[hibernate-issues] [Hibernate-JIRA] Created: (EJB-273) refresh() throws entity not managed exception

[Charles Canning (JIRA)]

refresh() throws entity not managed exception
---------------------------------------------

         Key: EJB-273
         URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-273
     Project: Hibernate Entity Manager
        Type: Bug

  Components: EntityManager  
    Versions: 3.2.1    
    Reporter: Charles Canning
    Priority: Critical


When you call EntityManager.refresh() to reattach an entity to the entitymanager, it throws:

java.lang.IllegalArgumentException: Entity not managed 
   at org.hibernate.ejb.AbstractEntityManagerImpl.refresh(AbstractEntityManagerImpl.java:260) 

The code is:

public void refresh(Object entity) { 
    checkTransactionNeeded(); 
    //adjustFlushMode(); 
    try {
        if ( ! getSession().contains( entity ) ) { 
            throw new IllegalArgumentException( "Entity not managed" ); 
        } 
        getSession().refresh( entity ); 
    } 
    catch (MappingException e) { 
        throw new IllegalArgumentException( e.getMessage(), e ); 
    } 
    catch (HibernateException he) { 
        throwPersistenceException( he ); 
    } 
} 

It is checking if the object is already in the session - this will not allow me to reattach. If I "cast" the EM to the session delegate, refresh works fine because it doesn't contain this check.

For more info, you can look at this forum topic :

http://forum.hibernate.org/viewtopic.php?t=971661&start=0&postdays=0&postorder=asc&highlight=



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