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From "Albert Lee (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (OPENJPA-1913) If fetch-groups is used, detaching an entity will lead to all lazy loaded members get reset to null
Date Fri, 03 Feb 2012 17:13:53 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-1913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Albert Lee resolved OPENJPA-1913.
---------------------------------

       Resolution: Not A Problem
    Fix Version/s:     (was: 2.2.0)

Per Jeremy and Rick, this is worked as designed.
                
> If fetch-groups is used, detaching an entity will lead to all lazy loaded members get
reset to null
> ---------------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1913
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1913
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 2.1.0
>            Reporter: Mark Struberg
>            Assignee: Jeremy Bauer
>         Attachments: OPENJPA-1913-enhancer-fix.patch, OPENJPA-1913-test.patch
>
>
> If I use openjpa.DetachState=fetch-groups and detach an entity with a lazy loaded list,
this list gets reset to null.
> An example:
> class @Entity Person {
>    private String name;
>     @OneToMany(mappedBy = "group", cascade = {CascadeType.ALL})
>     private List<Subscription> subscriptions = new ArrayList<Subscription>();
>  ...}
> I load the Person and access the subscriptions inside a transaction. I get a person instance
with e.g. 3 subscriptions. 
> If I now close the EntityManager and my person gets detached, the subscriptions list
is suddenly null!

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