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Editorial Team
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Asked: 2026-05-16T20:36:40+00:00

How one can access attributes with namespaces? My XML data are in a form

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How one can access attributes with namespaces? My XML data are in a form

val d = <z:Attachment rdf:about="#item_1"></z:Attachment>

but the following does not match the attribute

(d \\ "Attachment" \ "@about").toString

If I remove the namespace component from the attribute’s name then it works.

val d = <z:Attachment about="#item_1"></z:Attachment>
(d \\ "Attachment" \ "@about").toString

Any idea how to access attributes with namespaces in Scala?

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1 Answer

  1. Editorial Team

    The API documentation refers to the following syntax ns \ "@{uri}foo".

    In your example there is no namespace defined, and it seems Scala considers your attribute as unprefixed. See d.attributes.getClass.

    Now if you do this:

    val d = <z:Attachment xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" rdf:about="#item_1"></z:Attachment>

    Then:

    scala> d \ "@{http://www.w3.org/1999/02/22-rdf-syntax-ns#}about"
res21: scala.xml.NodeSeq = #item_1

scala> d.attributes.getClass
res22: java.lang.Class[_] = class scala.xml.PrefixedAttribute
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