Use prohibited
File: Data.xml <?xml version="1.0"?> <data xmlns="http://www.java2s.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation= "http://www.java2s.com Schema.xsd"> <glob length="5" height="3" width="1" radius="2" diameter="4"/> <computer-monitor length="24" height="20" width="19"/> </data> File: Schema.xml <?xml version="1.0"?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.java2s.com" xmlns="http://www.java2s.com" elementFormDefault="qualified"> <xsd:complexType name="shape"> <xsd:attribute name="length" type="xsd:nonNegativeInteger"/> <xsd:attribute name="height" type="xsd:nonNegativeInteger"/> <xsd:attribute name="width" type="xsd:nonNegativeInteger"/> <xsd:attribute name="radius" type="xsd:nonNegativeInteger"/> <xsd:attribute name="diameter" type="xsd:nonNegativeInteger"/> </xsd:complexType> <xsd:complexType name="box"> <xsd:complexContent> <xsd:restriction base="shape"> <xsd:attribute name="length" type="xsd:nonNegativeInteger"/> <xsd:attribute name="height" type="xsd:nonNegativeInteger"/> <xsd:attribute name="width" type="xsd:nonNegativeInteger"/> <xsd:attribute name="radius" type="xsd:nonNegativeInteger" use="prohibited"/> <xsd:attribute name="diameter" type="xsd:nonNegativeInteger" use="prohibited"/> </xsd:restriction> </xsd:complexContent> </xsd:complexType> <xsd:element name="glob" type="shape"/> <xsd:element name="computer-monitor" type="box"/> <xsd:element name="data"> <xsd:complexType> <xsd:sequence> <xsd:element ref="glob"/> <xsd:element ref="computer-monitor"/> </xsd:sequence> </xsd:complexType> </xsd:element> </xsd:schema>