[ http://issues.apache.org/jira/browse/DERBY-2046?page=all ]
Knut Anders Hatlen updated DERBY-2046:
--------------------------------------
Attachment: pagekey.diff
This patch makes the class final. I have run a couple of performance tests with
the test client in DERBY-1961. The effect of the patch is minimal, but it seems
to have a small positive impact especially on the 10000x1000 joins.
> Make class org.apache.derby.iapi.store.raw.PageKey final
> --------------------------------------------------------
>
> Key: DERBY-2046
> URL: http://issues.apache.org/jira/browse/DERBY-2046
> Project: Derby
> Issue Type: Improvement
> Components: Services, Performance
> Affects Versions: 10.3.0.0
> Reporter: Knut Anders Hatlen
> Assigned To: Knut Anders Hatlen
> Priority: Minor
> Attachments: pagekey.diff
>
>
> The methods of the PageKey class are called frequently both from the lock
> manager and the cache manager. Since no other classes extend it, it should be
> declared final to help the run-time compiler optimize the method calls.
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