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POXML Schema: using attribute definition in complexType
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  1. POXML Schema: using attribute definition in complexType
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    copied!<p>I have some problems with XML validation using SAX parser. Here is a simple XML Schema I made to present the problem:</p> <pre class="lang-xml prettyprint-override"><code>&lt;?xml version="1.0"?&gt; &lt;xs:schema targetNamespace="urn:test" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" xmlns="urn:test"&gt; &lt;xs:element name="root"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element name="content" type="ContentType" maxOccurs="unbounded" /&gt; &lt;/xs:sequence&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:complexType name="ContentType"&gt; &lt;xs:simpleContent&gt; &lt;xs:extension base="xs:string"&gt; &lt;xs:attribute ref="title" use="required" /&gt; &lt;/xs:extension&gt; &lt;/xs:simpleContent&gt; &lt;/xs:complexType&gt; &lt;xs:attribute name="title" type="xs:string" /&gt; &lt;/xs:schema&gt; </code></pre> <p>And here is a pretty simple XML file which in my opinion should be valid with regards to my schema:</p> <pre class="lang-xml prettyprint-override"><code>&lt;?xml version="1.0" encoding="UTF-8" standalone="no"?&gt; &lt;root xmlns="urn:test"&gt; &lt;content title="Title"&gt; Content comes here... &lt;/content&gt; &lt;/root&gt; </code></pre> <p>The interesting thing is that when I try to parse this XML file, I receive the following validation error:</p> <pre>cvc-complex-type.3.2.2: Attribute 'title' is not allowed to appear in element 'content'.</pre> <p>But if I remove the <em>title</em> attribute of the <em>content</em> element from the XML file, I still receive validation errors:</p> <pre>cvc-complex-type.4: Attribute 'title' must appear on element 'content'.</pre> <p>I have no idea what the problem is. Of course, this is just a simple example presenting the problem. I would like to understand the cause of this behavior. Also, it would be nice to find a resolution. I am not sure whether my Java code doing the validation is important in this case, I will post it later if it is necessary.</p> <p>Any help would be highly appreciated.</p>
 

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