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https://issues.apache.org/jira/browse/OPENJPA-370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12538791
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Patrick Linskey commented on OPENJPA-370:
-----------------------------------------

Maybe I should be more clear about the impact. Our tests seem to indicate that 
this causes performance regressions across the board, not just when the feature 
is used. That is, the current implementation appears to slow down all 
relationship traversals and pk loads that do not come from cache.

I haven't confirmed that 100%, but that's what the initial runs seem to show.

> LoadFetchGroup annotation was not recognized during the fetch1
> --------------------------------------------------------------
>
>                 Key: OPENJPA-370
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-370
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.0.1, 1.1.0
>            Reporter: Teresa Kan
>            Assignee: Teresa Kan
>             Fix For: 1.0.1, 1.1.0
>
>         Attachments: OPENJPA_370_2.patch, TestFetchGroup.zip
>
>
> Employee class has a LoadFetchGroup annotation defined on the Rating field, 
> when getRating was called, the address should be returned also. However, 
> openjpa did not handle the LoadFetchGroup correctly, therefore, address was 
> not eargly fetched.
> public class FGEmployee{
>     @Id
>     private int id;
>  
>     @OneToOne(fetch=FetchType.LAZY) 
>     private FGAddress address;
>  
>     @Basic(fetch=FetchType.LAZY)
>     @LoadFetchGroup("AddressFetchGroup")
>     private String rating;
>  
>     @ManyToOne(fetch=FetchType.LAZY)
>     private FGManager manager;
> ..
> }

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