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https://issues.apache.org/jira/browse/DERBY-6891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Hillegas updated DERBY-6891:
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Attachment: derby-6891-01-aa-synchronizeMethods.diff
Thanks for noticing that, Knut. Attaching
derby-6891-01-aa-synchronizeMethods.diff, which makes several methods
synchronized. I will run tests now.
Touches the following files:
M java/engine/org/apache/derby/iapi/services/monitor/DerbyObservable.java
> Investigate concurrency improvements to DerbyObservable and DerbyObserver
> -------------------------------------------------------------------------
>
> Key: DERBY-6891
> URL: https://issues.apache.org/jira/browse/DERBY-6891
> Project: Derby
> Issue Type: Improvement
> Components: Store
> Reporter: Rick Hillegas
> Attachments: derby-6891-01-aa-synchronizeMethods.diff
>
>
> As part of derby-6856, we introduced a pair of classes which manage callbacks
> between classes in the Store layer. The classes are DerbyObservable and
> DerbyObserver. They replace the deprecated Observer and Observable classes in
> the JVM and allow Derby to build without deprecation warnings. Right now,
> callbacks are managed by a Vector. It is quite likely that the concurrency of
> these classes (and therefore of the Store layer) could be boosted by using
> some mechanism from java.util.concurrent.
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