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https://issues.apache.org/jira/browse/XERCESJ-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12844053#action_12844053
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Michael Glavassevich commented on XERCESJ-1296:
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Hi Ludger,
It would be better to open a new JIRA issue since it sounds like you've found a
different performance bottleneck than the one that was fixed here.
Thanks.
> ElementNSImpl.getBaseURI has exponential execution time relative to the depth
> of the node in the document
> ---------------------------------------------------------------------------------------------------------
>
> Key: XERCESJ-1296
> URL: https://issues.apache.org/jira/browse/XERCESJ-1296
> Project: Xerces2-J
> Issue Type: Improvement
> Components: DOM (Level 3 Core)
> Affects Versions: 2.9.1
> Reporter: Ludger Bünger
> Assignee: Michael Glavassevich
> Priority: Minor
> Fix For: 2.10.0
>
> Attachments: ElementNSImplPatch.txt
>
>
> When using the Namespace-aware implementation, getBaseURI upon ElementNSImpl
> unnecessarily calls getBaseURI twice upon its parent node (once upon "parent"
> and once upon "ownerNode") resulting in an exponential execution time
> relative to the depth of the node (since the number of calls to their
> respective parent method doubles with each level of invocation).
> Elena Litani solved this already for ElementImpl, the same patch should be
> applied to ElementNSImpl too.
> Solution: Apply the same patch to ElementNSImpl Elena Litani already applied
> to ElementImpl in svn build 319554 (see
> http://svn.apache.org/viewvc/xerces/java/trunk/src/org/apache/xerces/dom/ElementImpl.java?r1=319502&r2=319554)
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