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Date: Tue, 26 Jun 2012 21:30:44 +0000 (UTC)
From: "Rick Curtis (JIRA)" <jira@apache.org>
To: dev@openjpa.apache.org
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Subject: [jira] [Commented] (OPENJPA-2220) Persistent field fetching
 statistic tool
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    [ https://issues.apache.org/jira/browse/OPENJPA-2220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13401701#comment-13401701 ] 

Rick Curtis commented on OPENJPA-2220:
--------------------------------------

We should also exclude version and primary key fields as I could see where those fields aren't used directly by application code, but they are still important to the runtime.
                
> Persistent field fetching statistic tool
> ----------------------------------------
>
>                 Key: OPENJPA-2220
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2220
>             Project: OpenJPA
>          Issue Type: Task
>          Components: performance
>    Affects Versions: 2.3.0
>            Reporter: Helen Xu
>            Assignee: Helen Xu
>         Attachments: OPENJPA-2220Patch.txt, statisticToolDocPatch.txt
>
>
> This task is to create a  statistic tool which monitors the persistent fields fetching and finds out the fields which are never accessed. Based on the statistic data, user can set the field access type to LAZY to improve the performance by eliminating the data loading and processing time.

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