lesson6: XSD Complex Empty Elements

msi_333 · **Posted:** Fri Mar 06, 2009 12:20 am

XSD Complex Empty Elements:
In your XSD schema, you can define empty XSD complex element with no content.

Code:

<xs:element name="student">
  <xs:complexType>
    <xs:complexContent>
      <xs:restriction base="xs:integer">
        <xs:attribute name="GPA" type="xs:positiveInteger"/>
      </xs:restriction>
    </xs:complexContent>
  </xs:complexType>
</xs:element>

The above Complex element type don't have any content elements.

Code:

<xs:element name="student">
  <xs:complexType> 
        <xs:attribute name="GPA" type="xs:positiveInteger"/>
  </xs:complexType>
</xs:element>

XML example:

Code:

Also remember, you can also can define you type by reference to complex type.

Code:

<xs:element name="student" type="studentType" />
  <xs:complexType name="studentType" > 
        <xs:attribute name="GPA" type="xs:positiveInteger"/>
  </xs:complexType>

none · **Posted:** Mon Jan 09, 2012 2:46 pm

Using your first code snipped, I get this error on validation:

[Xerces-J 2.7.1] Validating "zzz-text.xml" against "file://zzz-text.xsd" ...
Ln 9 Col 45 - src-ct.1: Complex Type Definition Representation Error for type '#AnonType_studenttest'. When <complexContent> is used, the base type must be a complexType. 'integer' is a simpleType.
1 Errors

The second code is working. Should 'above' read 'below'?

lesson6: XSD Complex Empty Elements

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