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https://issues.apache.org/jira/browse/OPENJPA-2167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13244596#comment-13244596
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Kevin Sutter commented on OPENJPA-2167:
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Using a HashSet for the cancel-able prepared statements was overkill. In most
cases, this would only be a single entry. So, I'm going to change this to a
List with an initial size of 1. We can then test whether each Statement needs
to be canceled instead of relying on the Set behavior.
> Misc changes to improve flush() path performance
> ------------------------------------------------
>
> Key: OPENJPA-2167
> URL: https://issues.apache.org/jira/browse/OPENJPA-2167
> Project: OpenJPA
> Issue Type: Improvement
> Components: kernel, performance
> Affects Versions: 2.3.0, 2.2.1
> Reporter: Kevin Sutter
> Assignee: Kevin Sutter
>
> In StateManagerImpl.proxyFields(), we blindly replace the proxy fields as
> long as they loaded. We can be slightly more efficient if we also verify
> that the field has been dirtied before doing the replacement.
> The original intent of this JIRA was to just resolve the issue with
> proxyFields. But, as I continue to dive into this flush() path, there are a
> few other minor updates that need to be done (reference the comments on this
> JIRA).
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