Question

If i have a type defined as

<xs:element name="serviceResponse">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="status"/>
                <xs:element ref="info"/>
                <xs:element ref="code"/>
            </xs:sequence>
        </xs:complexType>

And would like to have an additional type that defined as

      <xs:element name="serviceResponse">
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="status"/>
                <xs:element ref="info"/>
                <xs:element ref="code"/>
                            <xs:element ref="level"/>
            </xs:sequence>
        </xs:complexType>
    </xs:element>

Is it possible to create a new type that extends the first type and only append the “level” element to the new type? (sort of like inheritance in Java)

Answer 1

It would be possible, if only the type of serviceResponse were a named type rather than anonymous:

    <xs:complexType name="serviceResponseType">
        <xs:sequence>
            <xs:element ref="status"/>
            <xs:element ref="info"/>
            <xs:element ref="code"/>
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="extendedType">
      <xs:complexContent>
        <xs:extension base="serviceResponseType">
           <xs:sequence>
             <xs:element ref="level"/>
           </xs:sequence>
        </
     </
   </