XSD to XML trouble, transmission returns error with union.

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Im usually working with GUI applications, and so this XSD is complicated enough to seem a little foreign to me. Any help would be great! The union in the XSD is throwing me off, and google returns irrelevant information or something I am having a hard time understanding. As the deadline approaches, I need to solve this as soon as possible. I appreciate your time.

Im having trouble with this API accepting my XML. When transmitted I receive this response:

"Document supplied does not comply with the XML Schema for this resource - Reason: XML Validation failed (error) - (1826) Element '{http://www.aURL.com/api/saleDetail/v1_0}lineItem': ' ' is not a valid value of the union type '{http://www.aURL.com/api/saleDetail/v1_0}lineItemType'. "

Here is the section of the XSD that applies to creating a lineItem element:

XML

<xs:simpleType name="emptyString">
        <xs:restriction base="xs:string">
            <xs:enumeration value="" />
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="priceValue">
        <xs:restriction base="xs:decimal">
            <xs:totalDigits value='10'/>
            <xs:fractionDigits value='2'/>
            <xs:minInclusive value='0'/>
            <xs:maxInclusive value='99999999.99'/>
        </xs:restriction>
    </xs:simpleType>


    <xs:simpleType name="lineItemType">
        <xs:union memberTypes="priceValue emptyString" />
    </xs:simpleType>


    <xs:element name="lineItem">
        <xs:complexType>
            <xs:simpleContent>
                <xs:extension base="lineItemType">
                    <xs:attribute name="quantity" type="xs:unsignedInt" use="required"/>
                    <xs:attribute name="productID" type="xs:string"/>
                    <xs:attribute name="owned" type="booleanInt"/>
                    <xs:attribute name="productName" type="xs:string"/>
                    <xs:attribute name="productCampaignResourceURL" type="resourceURI"/>
                    <xs:attribute name="lineItemStatus" type="xs:string"/>
                </xs:extension>
            </xs:simpleContent>
        </xs:complexType>
    </xs:element>

    <xs:element name="lineItems">
      <xs:complexType>
        <xs:sequence>
            <xs:element ref="lineItem" minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
      </xs:complexType>
    </xs:element>

and my rejected XML build:

XML

<lineItems>
     <lineItem id="1">
             <quantity>1</quantity>
             <productId>$productID</productId>
             <owned>0</owned>
     </lineItem>
</lineItems>

Any Ideas or Tips would be greatly appreciated!

Posted 6-Jun-11 16:37pm

KevinH448

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Ger Hayden · Answer 1 · 2011-07-13T02:55:00

Hi Kevin,

Is this still an issue. I am a bit tight for time now but I may be able to assist in more detail if needs.

In your schema I had to comment out the resourceURI line, and I changed booleanInt to xs:Integer.

That done, Altova was able to use the schema and this is what it generated as a default sample:

<!--Sample XML file generated by XMLSpy v2009 sp1 (http://www.altova.com)-->
<lineitems xsi:nonamespaceschemalocation="sample.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <lineitem owned="0" productname="String" quantity="0" productid="String" lineitemstatus="String">0</lineitem>
        <lineitem owned="0" productname="String" quantity="0" productid="String" lineitemstatus="String">0</lineitem>
</lineitems>

It would look like your XML should read:

<lineitems>
     <lineitem owned="0" quantity="1" productid="productID">1</lineitem>
</lineitems>

Now on the otherhand, if we take your XML as set in stone and ask Altova to generate a schema based on that piece of XML, this is what it produces:

<!--W3C Schema generated by XMLSpy v2009 sp1 (http://www.altova.com)-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
        <xs:element name="quantity">
                <xs:simpletype>
                        <xs:restriction base="xs:byte">
                                <xs:enumeration value="1" />
                        </xs:restriction>
                </xs:simpletype>
        </xs:element>
        <xs:element name="productId">
                <xs:simpletype>
                        <xs:restriction base="xs:string">
                                <xs:enumeration value="$productID" />
                        </xs:restriction>
                </xs:simpletype>
        </xs:element>
        <xs:element name="owned">
                <xs:simpletype>
                        <xs:restriction base="xs:byte">
                                <xs:enumeration value="0" />
                        </xs:restriction>
                </xs:simpletype>
        </xs:element>
        <xs:element name="lineItems">
                <xs:complextype>
                        <xs:sequence>
                                <xs:element ref="lineItem" />
                        </xs:sequence>
                </xs:complextype>
        </xs:element>
        <xs:element name="lineItem">
                <xs:complextype>
                        <xs:sequence>
                                <xs:element ref="quantity" />
                                <xs:element ref="productId" />
                                <xs:element ref="owned" />
                        </xs:sequence>
                        <xs:attribute name="id" use="required">
                                <xs:simpletype>
                                        <xs:restriction base="xs:byte">
                                                <xs:enumeration value="1" />
                                        </xs:restriction>
                                </xs:simpletype>
                        </xs:attribute>
                </xs:complextype>
        </xs:element>
</xs:schema>