Re: [ubl-dev] Re: [spam] Re: [ubl-dev] XPath expressions in UBL / Signatures

[Stephen D Green <stephengreenubl@gmail.com>]

This would give ( in some hypothetical future UBL version 2.x - not

in existing UBL ) a way to include an adequately declared XPath 2.0

in a UBL document:

 

<cac:XmlExpression>
<cbc:XmlExpressionLanguageID>http://www.w3.org/TR/xquery/</cbc:XmlExpressionLanguageID>
<cbc:XmlExpressionLanguageVersionID>1.0</cbc:XmlExpressionLanguageVersionID>
<cbc:XmlExpressionString>declare default element namespace "urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"; declare namespace cbc = "urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"; (/Invoice/cbc:ID)[1]</cbc:XmlExpressionString>
</cac:XmlExpression>

However, since XQuery itself allows the version information to be declared in the expression itself, maybe the XmlExpressionLanguageVersionID could be optional and that version information included in the XQuery expession:

 

<cac:XmlExpression>
<cbc:XmlExpressionLanguageID>http://www.w3.org/TR/xquery/</cbc:XmlExpressionLanguageID>
<cbc:XmlExpressionString>xquery version "1.0"; declare default element namespace "urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"; declare namespace cbc = "urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"; (/Invoice/cbc:ID)[1]</cbc:XmlExpressionString>
</cac:XmlExpression>

 

Best regards

 

Steve

 

----

Stephen D Green

On 15 May 2011 11:24, Stephen D Green <stephengreenubl@gmail.com> wrote:

Or there is the alternative of an ABIE, but for XQuery and/or XPath, so

that the backwards compatibility problem with the existing XPath BBIE

is reduced (people can reserve XPath for 1.0 (since XQuery 1.0+ uses

/ is a superset of XPath 2.0+) and the namespaces/prefixes can be

declared inline (without a need for special extra-CCTS supplementary

components).

 

Could look like this (once modelled and then incorporated into schemas):

 

 

<!-- ----------------------------------------------------- -->

<!-- UBL-CommonAggregateComponents-2 -->

<!-- ----------------------------------------------------- -->

 

<!-- ... -->

<!-- addition -->

   <xsd:element name="XmlExpression" type="XmlExpressionType"/>

 

<!-- ... -->

<!-- extension -->

   <xsd:complexType name="DocumentReferenceType">

       <xsd:sequence>

           <xsd:element maxOccurs="1" minOccurs="1" ref="cbc:ID"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:CopyIndicator"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:UUID"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:IssueDate"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:IssueTime"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:DocumentTypeCode"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:DocumentType"/>

           <xsd:element maxOccurs="unbounded" minOccurs="0" ref="cbc:XPath"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:LanguageID"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:LocaleCode"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:VersionID"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cbc:DocumentStatusCode"/>

           <xsd:element maxOccurs="unbounded" minOccurs="0" ref="cbc:DocumentDescription"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cac:Attachment"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cac:ValidityPeriod"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cac:IssuerParty"/>

           <xsd:element maxOccurs="1" minOccurs="0" ref="cac:ResultOfVerification"/>

<!-- addition -->

           <xsd:element maxOccurs="1" minOccurs="0" ref="cac:XmlExpression"/>

       </xsd:sequence>

   </xsd:complexType>

 

 

<!-- ... -->

 

<!-- addition -->

   <xsd:complexType name="XmlExpressionType">

       <xsd:sequence>

           <xsd:element maxOccurs="1" minOccurs="1" ref="cbc:XmlExpressionLanguageID"/>

           <xsd:element maxOccurs="1" minOccurs="1" ref="cbc:XmlExpressionLanguageVersionID"/>

           <xsd:element maxOccurs="unbounded" minOccurs="1" ref="cbc:XmlExpressionString"/>

       </xsd:sequence>

   </xsd:complexType>

 

<!-- alternative addition -->

   <xsd:complexType name="XmlExpressionType">

       <xsd:sequence>

           <xsd:element maxOccurs="1" minOccurs="1" ref="cbc:XmlExpressionCode"/>

           <xsd:element maxOccurs="unbounded" minOccurs="1" ref="cbc:XmlExpressionString"/>

       </xsd:sequence>

   </xsd:complexType>

 

<!-- ... -->

 

 

<!-- ---------------------------------------------- -->

<!-- UBL-CommonBasicComponents-2 -->

<!-- ---------------------------------------------- -->

 

<!-- ... -->

 

<!-- additions -->

<!-- needs specification of how to use spec URIs and version IDs for XQuery, etc here -->

 

   <xsd:element name="XmlExpressionLanguageID" type="LanguageIDType"/>

   <xsd:element name="XmlExpressionLanguageVersionID" type="VersionIDType"/>

 

<!-- alternative codified additions -->

<!-- needs a codelist, e.g. XPath2XPath1CompatibilityMode, XQuery1, XPath2, XQuery2, XPath3 ... -->

 

   <xsd:element name="XmlExpressionLanguageCode" type="XmlExpressionLanguageCodeType"/>

<!-- ... -->

   <xsd:complexType name="XmlExpressionLanguageCodeType">

       <xsd:simpleContent>

           <xsd:extension base="udt:CodeType"/>

       </xsd:simpleContent>

   </xsd:complexType>

   

<!-- ... -->

 

 

<!-- addition -->

   <xsd:element name="XmlExpressionString" type="XmlExpressionStringType"/>

 

<!-- ... -->

 

<!-- addition -->

   <xsd:complexType name="XmlExpressionStringType">

       <xsd:simpleContent>

           <xsd:extension base="udt:TextType"/>

       </xsd:simpleContent>

   </xsd:complexType>

 

<!-- ... -->

 

 

Best regards

 

Steve

----

Stephen D Green