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https://issues.apache.org/jira/browse/OPENJPA-370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12539270
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Patrick Linskey commented on OPENJPA-370:
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> I take that your profiling has shown that the performance degradation
> is due to the changes introduced by this Issue? Can you share any more
> details?
We've seen a ~ 30% regression since an OpenJPA snapshot from a few months back.
Rolling back this particular change cuts that to a 10% regression.
> 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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