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https://issues.apache.org/jira/browse/XERCESJ-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ludger Bünger updated XERCESJ-1296:
-----------------------------------
Description:
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)
was:
When using the Namespace-aware implementation, getBaseURI calls getBaseURI
twice upon 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)
> 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
> Priority: Minor
> 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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