We begin with the schema — actually two schemas. As you can see, the address.xsd schema is included in the complexContent.xsd schema.
<schema targetNamespace="http://www.example.com/IPO" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:ipo="http://www.example.com/IPO"> . . . <!-- include address constructs --> <include schemaLocation="address.xsd"/> <element name="purchaseOrder" type="ipo:PurchaseOrderType"/> <element name="comment" type="string"/> <complexType name="PurchaseOrderType"> <sequence> <element name="shipTo" type="ipo:Address"/> <element name="billTo" type="ipo:Address"/> <element ref="ipo:comment" minOccurs="0"/> <element name="items" type="ipo:Items"/> </sequence> <attribute name="orderDate" type="date"/> </complexType> <complexType name="Items"> <sequence> <element name="item" minOccurs="0" maxOccurs="unbounded"> <complexType> <sequence> <element name="productName" type="string"/> <element name="quantity"> <simpleType> <restriction base="positiveInteger"> <maxExclusive value="100"/> </restriction> </simpleType> </element> <element name="USPrice" type="decimal"/> <element ref="ipo:comment" minOccurs="0"/> <element name="shipDate" type="date" minOccurs="0"/> </sequence> <attribute name="partNum" type="ipo:SKU" use="required"/> </complexType> </element> </sequence> </complexType> <simpleType name="SKU"> <restriction base="string"> <pattern value="\d{3}-[A-Z]{2}"/> </restriction> </simpleType> <complexType name="ConfirmedItems"> <complexContent> <restriction base="ipo:Items"> <sequence> <!-- item element is different than in Items --> <element name="item" minOccurs="1" maxOccurs="unbounded"> <!-- remainder of definition is same as Items --> <complexType> <sequence> <element name="productName" type="string"/> <element name="quantity"> <simpleType> <restriction base="positiveInteger"> <maxExclusive value="100"/> </restriction> </simpleType> </element> <element name="USPrice" type="decimal"/> <element ref="ipo:comment" minOccurs="0"/> <element name="shipDate" type="date" minOccurs="0"/> </sequence> <attribute name="partNum" type="ipo:SKU" use="required"/> </complexType> </element> </sequence> </restriction> </complexContent> </complexType> </schema> <!--address.xsd --> <schema targetNamespace="http://www.example.com/IPO" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:ipo="http://www.example.com/IPO"> <annotation> <documentation xml:lang="en"> Addresses for International Purchase order schema Copyright 2000 Example.com. All rights reserved. </documentation> </annotation> <complexType name="Address"> <sequence> <element name="name" type="string"/> <element name="street" type="string"/> <element name="city" type="string"/> </sequence> </complexType> <complexType name="USAddress"> <complexContent> <extension base="ipo:Address"> <sequence> <element name="state" type="string"/> <element name="zip" type="positiveInteger"/> </sequence> </extension> </complexContent> </complexType> <complexType name="UKAddress"> <complexContent> <extension base="ipo:Address"> <sequence> <element name="postcode" type="ipo:UKPostcode"/> </sequence> <attribute name="exportCode" type="positiveInteger" fixed="1"/> </extension> </complexContent> </complexType> <!-- other Address derivations for more countries --> <simpleType name="USState"> <restriction base="string"> <enumeration value="AK"/> <enumeration value="AL"/> <enumeration value="AR"/> <!-- and so on ... --> </restriction> </simpleType> <!-- simple type definition for UKPostcode --> <simpleType name="UKPostcode"> <restriction base="string"> </restriction> </simpleType> </schema> |
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