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https://issues.apache.org/jira/browse/JCR-1251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christoph Kiehl updated JCR-1251:
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Attachment: DescendantSelfAxisQuery-patch.txt
I'm getting a performance boost of about 40% on big indexes (about 1000000
nodes) using plain arrays instead of ArrayLists because this avoids a lot of
object creation. If no one objects I'm going to commit this.
> DescendantSelfAxisQuery creates too many object instances
> ---------------------------------------------------------
>
> Key: JCR-1251
> URL: https://issues.apache.org/jira/browse/JCR-1251
> Project: Jackrabbit
> Issue Type: Improvement
> Components: jackrabbit-core, query
> Reporter: Christoph Kiehl
> Assignee: Christoph Kiehl
> Priority: Minor
> Fix For: 1.4
>
> Attachments: DescendantSelfAxisQuery-patch.txt
>
>
> In DescendantSelfAxisQuery.DescendantSelfAxisScorer.isValid() there is an
> ArrayList and an Integer instance created on every call. Since this method
> gets called really often during queries the object creation/gc affects
> performance.
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