Using Elements Declared in Different Namespaces - Errors

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This section describes a tutorial example of incorrect usages of imported element declarations from a different namespace.

One common error on using elements declared in different namespaces is that the element name is not prefixed with the correct namespace. Here is a sample schema document, .xsd, that has this type of errors:

<?xml version="1.0"?>
<book>
<!-- xhtml_import_error.xml
 - Copyright (c) 2007 by Dr. Herong Yang. All rights reserved.
-->

 <title>XML Schema Tutorials</title>
 <author>Herong Yang</author>

 <p>What is XML Schema? ...</p>
 <pre>... schema code ...</pre>

</book>

Here is the error message reported by the schema validator program, XsdSchemaValidator.java:

>java XsdSchemaValidator xhtml_import.xsd xhtml_import_error.xml
Error:
   Line number: 10
   Column number: 5
   Message: cvc-complex-type.2.4.a: Invalid content was found 
   starting with element 'p'. One of 
   '{"http://www.w3.org/1999/xhtml":p, 
   "http://www.w3.org/1999/xhtml":pre, 
   "http://www.w3.org/1999/xhtml":ul}' is expected.

Failed with errors: 1

Sections in This Chapter

Schema Component Reuse - "include", "redefine" or "import"

Including Old Schema Documents - "include" Component

Including Old Schema Documents - Examples

Including Old Schema Documents - Errors

Redefining Old Datatypes - "redefine" Component

Redefining Old Datatypes - XML Examples

Redefining Old Datatypes - Errors

Importing Declarations Across Namespaces - "import" Component

Importing Declarations Across Namespaces - Examples

Using Elements Declared in Different Namespaces

Using Elements Declared in Different Namespaces - Errors