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RE: [xml-dev] XSD elementFormDefault="unqualified" destroys thebenefits of namespace modularity
- From: "Costello, Roger L." <costello@mitre.org>
- To: "'xml-dev@lists.xml.org'" <xml-dev@lists.xml.org>
- Date: Wed, 28 Jan 2009 09:08:58 -0500
Hi George,
Here are the four schemas, using elementFormDefault="unqualified." Following the schemas is an instance document, which validated against the schemas. /Roger
-----------------------------------------------------
Camera.xsd
-----------------------------------------------------
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.camera.org";
xmlns="http://www.camera.org";
xmlns:nikon="http://www.nikon.com";
xmlns:olympus="http://www.olympus.com";
xmlns:pentax="http://www.pentax.com";
elementFormDefault="unqualified">
<xsd:import namespace="http://www.nikon.com";
schemaLocation="Nikon.xsd"/>
<xsd:import namespace="http://www.olympus.com";
schemaLocation="Olympus.xsd"/>
<xsd:import namespace="http://www.pentax.com";
schemaLocation="Pentax.xsd"/>
<xsd:element name="camera">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="body" type="nikon:body_type"/>
<xsd:element name="lens" type="olympus:lens_type"/>
<xsd:element name="manual_adapter"
type="pentax:manual_adapter_type"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
-----------------------------------------------------
Nikon.xsd
-----------------------------------------------------
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.nikon.com";
xmlns="http://www.nikon.com";
elementFormDefault="unqualified">
<xsd:complexType name="body_type">
<xsd:sequence>
<xsd:element name="description" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
-----------------------------------------------------
Olympus.xsd
-----------------------------------------------------
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.olympus.com";
xmlns="http://www.olympus.com";
elementFormDefault="unqualified">
<xsd:complexType name="lens_type">
<xsd:sequence>
<xsd:element name="zoom" type="xsd:string"/>
<xsd:element name="f-stop" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
-----------------------------------------------------
Pentax.xsd
-----------------------------------------------------
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.pentax.com";
xmlns="http://www.pentax.com";
elementFormDefault="unqualified">
<xsd:complexType name="manual_adapter_type">
<xsd:sequence>
<xsd:element name="speed" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
-----------------------------------------------------
Camera.xml
-----------------------------------------------------
<?xml version="1.0"?>
<c:camera xmlns:c="http://www.camera.org";>
<body>
<description>Ergonomically designed
casing for easy handling
</description>
</body>
<lens>
<zoom>300mm</zoom>
<f-stop>1.2</f-stop>
</lens>
<manual_adapter>
<speed>1/10,000 sec to 100 sec</speed>
</manual_adapter>
</c:camera>
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