import in XSD and its implementation

Question

I have 2 separate XSDs with some common attributes. I want to create another XSD and put all my common attributes in the separate XSD and import them in the 2 XSDs i have already rather than repeating them or duplicating them in both the XSDs.

Is there any reference for such implementation?

What do you mean by "reference for such implementation"? This can be done using xsd:import and xsd:include. Here a question asked previously that maybe can help. http://stackoverflow.com/questions/2357943/whats-the-difference-between-xsdinclude-and-xsdimport — user1187008, Jul 30 '12 at 13:31
http://www.liquid-technologies.com/Tutorials/XmlSchemas/XsdTutorial_04.aspx helped.. Thanks .. — nisha, Jul 30 '12 at 13:35
possible duplicate of [importing common attributes in XSD](http://stackoverflow.com/questions/11716829/importing-common-attributes-in-xsd) — tom redfern, Jul 30 '12 at 14:27

score 0 · Answer 1 · answered Aug 02 '12 at 08:45

We do it like this:

Shared "library" xsd:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns="http://www.common.namespace/" xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.common.namespace/">
    <xs:attribute name="ACommonAttribute" type="xs:float" default="1.7"/>
</xs:schema>

Left xsd with same target namespace:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns="http://www.common.namespace/" xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.common.namespace/">
    <xs:include schemaLocation="Common.xsd"/>
    <xs:element name="MyLeftElement">
        <xs:annotation>
            <xs:documentation>Comment describing your root element</xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:attribute ref="ACommonAttribute"/>
        </xs:complexType>
    </xs:element>
</xs:schema>

Right xsd with different target namespace (needs an Import instead if an Include statement)

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns="http://another.namespace/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:libs="http://www.common.namespace/" targetNamespace="http://another.namespace/">
    <xs:import namespace="http://www.common.namespace/" schemaLocation="Common.xsd"/>
    <xs:complexType name="RightComplexType">
        <xs:sequence>
            <xs:element name="Bit">
                <xs:complexType>
                    <xs:attribute ref="libs:ACommonAttribute"/>
                </xs:complexType>
            </xs:element>
        </xs:sequence>
    </xs:complexType>
</xs:schema>

import in XSD and its implementation

1 Answers1