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From "Helen Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OPENJPA-2220) Persistent field fetching statistic tool
Date Tue, 10 Jul 2012 19:06:34 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-2220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410713#comment-13410713
] 

Helen Xu commented on OPENJPA-2220:
-----------------------------------

if user has a lot of entities, the following message could be very long. 

4226 fetchStatisticPU INFO [Thread-5] openjpa.Runtime - Successfully collected fetch statistics
from Entities [org.apache.openjpa.enhance.stats.AEntity,..., org.apache.openjpa.enhance.stats.EEntity].
The following fields are FetchType.EAGER and were never fetched [ total 10 ] : 

how about this :

4226 fetchStatisticPU INFO [Thread-5] openjpa.Runtime - Successfully collected fetch statistics.
The following fields are FetchType.EAGER and were never fetched [ total 10 ] 
org.apache.openjpa.enhance.stats.AEntity [4]
checked
desc
extraInfo
name 
org.apache.openjpa.enhance.stats.BEntity [0]
org.apache.openjpa.enhance.stats.CEntity.[2]
name
desc
org.apache.openjpa.enhance.stats.DEntity [0]

                
> Persistent field fetching statistic tool
> ----------------------------------------
>
>                 Key: OPENJPA-2220
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2220
>             Project: OpenJPA
>          Issue Type: Improvement
>          Components: tooling
>    Affects Versions: 2.3.0, 2.2.1
>            Reporter: Helen Xu
>            Assignee: Rick Curtis
>         Attachments: OPENJPA-2220Patch.txt, READMEpatch, 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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