Redefining Old Datatypes

XSD Tutorials - Herong's Tutorial Examples

∟Linking Multiple Schema Documents Together

∟Redefining Old Datatypes - XML Examples

This section describes a tutorial example on how to use elements declared with datatypes redefined with 'redefine' components.

In the previous section, we wrote a new version of "address_us.xsd" called "address_us_redefine.xsd", which inherited the "addressUs" element declaration, but redefined its datatype "addressUsType". Now let's try to write a sample XML document, address_us_redefine.xml, that conforms to this new definition.

<?xml version="1.0"?>
<addressUs>
<!-- address_us_redefine.xml
 - Copyright (c) 2002-2013 HerongYang.com. All Rights Reserved.
-->

 <street>1 Main Street</street>
 <city>New York</city>
 <state>NY</state>
 <zip>12345</zip>
 <country>USA</country>

</addressUs>

If you try to validate this new XML document, address_us_redefine.xml, with the new schema, address_us_redefine.xsd, it will pass:

herong> java XsdSchemaValidator address_us_redefine.xsd
   address_us_redefine.xml

Passed.

But if you try to validate this new XML document, address_us_redefine.xml, with the old schema, address_us.xsd, it will fail:

herong> java XsdSchemaValidator address_us.xsd address_us_redefine.xml

Error:
   Line number: 11
   Column number: 11
   Message: cvc-complex-type.2.4.d: Invalid content was found
   starting with element 'country'. No child element is expected at
   this point.

Failed with errors: 1