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| <h1 class="topictitle1">Extending the content model of an XML document</h1> |
| <div><p>You can use the XML schema <samp class="codeph">any</samp> element to extend |
| the content model of an XML document.</p><div class="skipspace"><p>For example, you have an XML schema file called Book.xsd which |
| contains a complex type called BookType. BookType contains 4 elements (title, |
| author, year, and ISBN) and one <samp class="codeph">any</samp>element. The namespace |
| for the <samp class="codeph">any</samp> element is <samp class="codeph">##any</samp>. This means |
| that in an instance document, you can insert any XML element to extend the |
| definition of the BookType. </p> |
| <p>You can also provide a more specific |
| namespace. For example, you have another schema called My_Book.xsd, which |
| contains a complex type called My_BookType. My_BookType contains 4 elements |
| (title, author, year, and ISBN) and one <samp class="codeph">any</samp> element, but |
| in this case the namespace for the BookType element is www.wesley.com. This |
| means that in an instance document, you can insert any XML element to extend |
| the definition of the BookType, provided that they belong to the namespace |
| http://www.wesley.com. </p> |
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