XML Schema: Element with attributes containing only text?

Question

I'm having difficulty searching for this. How would I define an element in an XML schema file for XML that looks like this:

<option value="test">sometext</option>

I can't figure out how to define an element that is of type xs:string and also has an attribute.

Here's what I've got so far:

<xs:element name="option">
    <xs:complexType>
        <xs:attribute name="value" type="xs:string" />
    </xs:complexType>
</xs:element>

David Norman · Accepted Answer · 2008-12-18 02:18:29Z

190

Try

  <xs:element name="option" type="AttrElement" />

  <xs:complexType name="AttrElement">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute name="value" type="xs:string">
        </xs:attribute>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>

answered Dec 18, 2008 at 2:18

David Norman

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3 Comments

Ashwin Over a year ago

I am getting the following exception on trying your code - org.xml.sax.SAXParseException: src-resolve: Cannot r esolve the name 'AttrElement' to a(n) 'type definition' component. Why is that so?

C. M. Sperberg-McQueen Over a year ago

If that is so, it is probably because your schema document has a target namespace and you will need to use a prefixed name to point to the type. (If the prefix tns is bound to the schema document's target namespace, you will use type="tns:AttrElement" to refer to the type.)

eckes Over a year ago

@Ashwin you might need to reference the type with the type namespace (type="tns:AtrElement" if your default namespace of the XSD is xs not the targetNamespace of the document. Typically in that case tns is defined and used.

eckes · Accepted Answer · 2016-07-27 21:09:19Z

87

... or the inline equivalent:

<xs:element name="option">
  <xs:complexType>
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute name="value" type="xs:string" />
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
</xs:element>

edited Jul 27, 2016 at 21:09

eckes

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answered Nov 3, 2009 at 23:50

Julian H

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2 Comments

flu Over a year ago

I find it really unintuitive to define simpleContent within a complexType. But then again it's XSD, where nothing seems really intuitive. Thanks nonetheless! :-)

aZen Over a year ago

This will show an error for me in IntelliJ (V12.1.3): The value attribute is "not allowed". Using complexContent instead of simpleContent fixed it.

eckes · Accepted Answer · 2016-07-27 21:10:18Z

-1

I know it is not the same, but it works for me:

<xsd:element name="option">
    <xsd:complexType mixed="true">
        <xsd:attribute name="value" use="optional" type="xsd:string"/>
    </xsd:complexType>
</xsd:element>

edited Jul 27, 2016 at 21:10

eckes

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answered Nov 21, 2013 at 17:49

Aitor

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