[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3917) @NotFound(action=NotFoundAction.IGNORE) results in EAGER loading for @ManyToOne(fetch = FetchType.LAZY) field

[Vlasov Igor (JIRA)]

@NotFound(action=NotFoundAction.IGNORE) results in EAGER loading for @ManyToOne(fetch = FetchType.LAZY) field
-------------------------------------------------------------------------------------------------------------

                 Key: HHH-3917
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3917
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.3.1
            Reporter: Vlasov Igor


Hello 
I try to use @org.hibernate.annotations.NotFound(action=NotFoundAction.IGNORE) annotation to avoid of throwing an exception IN

@JoinColumn(name = "UR_ID", referencedColumnName = "UR_ID")
@ManyToOne(fetch = FetchType.LAZY)
@org.hibernate.annotations.NotFound(action=NotFoundAction.IGNORE)
@Basic(optional=true)
 private UserRole role;


Then it results me to  EAGER loading  of this field.

Throw days of debuging  i have found that:


1. @org.hibernate.annotations.NotFound results in:
     isNullable()=true 
for org.hibernate.type.ManyToOneType

2. in org.hibernate.impl.SessionImpl and method internalLoad i can see:
LoadEventListener.LoadType type = nullable ? 
				LoadEventListener.INTERNAL_LOAD_NULLABLE : 
				eager ? LoadEventListener.INTERNAL_LOAD_EAGER : LoadEventListener.INTERNAL_LOAD_LAZY;

Threrefore we have LoadEventListener.INTERNAL_LOAD_NULLABLE  type of loading my relation. !!!

and in class org.hibernate.event.LoadEventListener.INTERNAL_LOAD_NULLABLE I can see setAllowProxyCreation(false) !!!!

3. in org.hibernate.event.def.DefaultLoadEventListener in line 218 there is a condition:
	if ( options.isAllowProxyCreation() ) {
	return createProxyIfNecessary( event, persister, keyToLoad, options, persistenceContext );
      }	else {
	return load(event, persister, keyToLoad, options);
    }

In my case LoadEventListener.INTERNAL_LOAD_NULLABLE.isAllowProxyCreation() ==false !! 
 and it results in LOADING of Object !!!

Can we set LoadEventListener.INTERNAL_LOAD_NULLABLE.isAllowProxyCreation() to true ?





org.hibernate.event.LoadEventListener.INTERNAL_LOAD_NULLABLE = new LoadType("INTERNAL_LOAD_NULLABLE")
			.setAllowNulls(true)
			.setAllowProxyCreation(false)
			.setCheckDeleted(false)
			.setNakedEntityReturned(false);





-- 
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