[jira] [Commented] (NIFI-1023) Need ability to supply namespace mapping for XPath/XQuery processors

["Nico Verwer (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-1023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16891031#comment-16891031 ] 

Nico Verwer commented on NIFI-1023:
-----------------------------------

When using EvaluateXQuery, it is possible to declare namespaces, like this:
{code:java}
declare namespace rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
declare namespace dcterms="http://purl.org/dc/terms/";
return //rdf:Description/dcterms:identifier/text(){code}
There is no possibility to declare namespaces in EvaluateXPath.

A controller service would be very helpful, and even essential in serious XML applications. This is even true for EvaluateXQuery, where it would save a lot of duplicated namespace declarations.

> Need ability to supply namespace mapping for XPath/XQuery processors
> --------------------------------------------------------------------
>
>                 Key: NIFI-1023
>                 URL: https://issues.apache.org/jira/browse/NIFI-1023
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Extensions
>            Reporter: Matt Gilman
>            Priority: Minor
>
> Possibly consider creating a controller service that provides access to a NamespaceContext which can be used with EvaluteXPath and EvaluateXQuery.



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