[jira] Resolved: (WSCOMMONS-361) Performance enhancement for build from DOM

["Benson Margulies (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WSCOMMONS-361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benson Margulies resolved WSCOMMONS-361.
----------------------------------------

       Resolution: Fixed
    Fix Version/s: XmlSchema 1.4.3

Patch applied.

> Performance enhancement for build from DOM
> ------------------------------------------
>
>                 Key: WSCOMMONS-361
>                 URL: https://issues.apache.org/jira/browse/WSCOMMONS-361
>             Project: WS-Commons
>          Issue Type: Improvement
>          Components: XmlSchema
>            Reporter: Daniel Kulp
>            Assignee: Benson Margulies
>             Fix For: XmlSchema 1.4.3
>
>         Attachments: xmlschema-361.patch, xmlschema-361.patch2
>
>
> When building from a DOM, the builder creates a NodeNamespaceContext for each element and each time, it goes up all parent elements iterating over all the attributes.   That's expensive.
> Attaching a patch that changes the NodeNamespaceContext to store the contxt in the user data.   It can then combine the current elemets with the parents very quickly.
> Also, if the same DOM is used multiple times, it can be much faster as no contexts need to be created.   
> Downside: requires DOM level 3, but XmlSchema already doesn't work if DOM level isn't level 3.  (WSCOMMONS-358)

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