Confusing XSD sequence/group.

["David Lee" <dlee@calldei.com>]

I have an XSD with this group

 

<xsd:group name="value">
        <xsd:choice>
                <xsd:element name="STRING"/>
                <xsd:element name="NUMBER"/>
                <xsd:element name="NULL"/>
                <xsd:element name="OBJECT"/>
                <xsd:element name="ARRAY"/>

        </xsd:choice>
    </xsd:group>

 

 

I then use it in this element

 

<xsd:element name="MEMBER">
        <xsd:complexType>
            <xsd:sequence minOccurs="1" maxOccurs="1">
                <xsd:group ref="value" minOccurs="1" maxOccurs="1"/>
            </xsd:sequence>
            <xsd:attribute name="name" use="required"/>
        </xsd:complexType>
    </xsd:element>

 

 

 

----------------

 

 

I validate it against a document which has this fragment

 <MEMBER name="_text">
      <STRING>        </STRING>
      <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
        </STRING>                                          <STRING>
    </STRING>                                       

</MEMBER>

 

 

 

It validates as successful in every schema validator I've tried (including Saxon, XSV, MS XML).

 

What am I missing ???

I want to have MEBMER element contain One and Only One element of STRING|NUMBER|NULL|OBJECT|ARRAY

Thanks for any suggestions !

 

 

Here's the full schema

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <xsd:element name="OBJECT">
        <xsd:complexType>
            <xsd:sequence minOccurs="0" maxOccurs="unbounded">
                <xsd:element name="MEMBER"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
    <xsd:element name="MEMBER">
        <xsd:complexType>
            <xsd:sequence minOccurs="1" maxOccurs="1">
                <xsd:group ref="value" minOccurs="1" maxOccurs="1"/>
            </xsd:sequence>
            <xsd:attribute name="name" use="required"/>
        </xsd:complexType>
    </xsd:element>
    <xsd:element name="ARRAY">
        <xsd:complexType>
            <xsd:sequence maxOccurs="unbounded" minOccurs="0">
                <xsd:group ref="value"/>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
    <xsd:element name="STRING">
        <xsd:simpleType>
            <xsd:restriction base="xsd:string"/>
        </xsd:simpleType>
    </xsd:element>
    <xsd:element name="NUMBER">
        <xsd:simpleType>
            
            <xsd:restriction base="xsd:double"/>
            
        </xsd:simpleType>
    </xsd:element>
    <xsd:element name="NULL"/>
    <xsd:group name="value">
        <xsd:choice>
                <xsd:element name="STRING"/>
                <xsd:element name="NUMBER"/>
                <xsd:element name="NULL"/>
                <xsd:element name="OBJECT"/>
                <xsd:element name="ARRAY"/>

        </xsd:choice>
    </xsd:group>


</xsd:schema>

 

 

 

 

 

----------------------------------------

David A. Lee

dlee@calldei.com

http://www.xmlsh.org