[xsde-users] Adding unique constraint to an xsd

[Jonathan Ball]

Hi,

We have added a constraint such that the ID of polymorphic elements is unique across all instances of those elements.  When encountering duplicated IDs, XSD/e does not raise an error - is this supported on XSD/e?

Code snippet:
    <xs:element name="root" type="FOO:Root">
       ...
        <xs:unique name="uniqueContentIdentifier">
            <xs:selector xpath=".//FOO:Type1 | .//FOO:Type2 | .//FOO:Type3" />
            <xs:field xpath="@id"/>
        </xs:unique>
        ...
    </xs:element>

Kind Regards,
Jon

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