Solved

How to define XSD conditionally depending on another element?

Posted on 2014-04-16
5
443 Views
Last Modified: 2014-06-01
Hi,
How to define my XSD, if the value of <Action> element is 'Update', <UpdateReason> element should NOT be blank.

possible values of <Action> tag are New / Update / Delete. In case of 'Update' , <UpdateReason> should NOT be blank.

Can anyone help me please?
0
Comment
Question by:GouthamAnand
  • 4
5 Comments
 
LVL 60

Accepted Solution

by:
Geert Bormans earned 500 total points
ID: 40005231
That is a co-occurence constraint.

That can not be modelled in XSD1.0
If you need to use XSD1.0, then you need to embed schematron rules
most parsers support schematron embedding one way or another

XSD1.1 has assertions,
If you parser supports XSD1.1 you can use assertions
Can you verify XSD1.1 support?
0
 
LVL 60

Expert Comment

by:Geert Bormans
ID: 40005321
Here is an example XSD1.1

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
    xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning" vc:minVersion="1.1">
    <xs:element name="root">
        <xs:complexType>
            <xs:sequence>
                <xs:element name="Action">
                    <xs:simpleType>
                        <xs:restriction base="xs:string">
                            <xs:enumeration value="New"/>
                            <xs:enumeration value="Update"/>
                            <xs:enumeration value="Delete"/>
                        </xs:restriction>
                    </xs:simpleType>
                </xs:element>
                <xs:element name="UpdateReason"/>
            </xs:sequence>
            <xs:assert test="not(Action = 'Update') or normalize-space(UpdateReason)"/>
        </xs:complexType>
    </xs:element>
</xs:schema>

Open in new window

0
 

Author Closing Comment

by:GouthamAnand
ID: 40006767
Thanks a lot. I am not using XSD1.1
0
 
LVL 60

Expert Comment

by:Geert Bormans
ID: 40006955
OK, that is a disappointment then
- you could consider embedding schematron assertions (most parsers allow that, put the schematron assertions in their own namespace in the annotation)
- you could consider schematron validation after schema validation (that is for instance how Python supports that)
- or you could have a simple reporting XSLT to tell you wrong or right
0
 
LVL 60

Expert Comment

by:Geert Bormans
ID: 40103467
Hi,
How did that work for you?
Maybe you could reconsider using XSD1.1, most parsers did implement at least the assertion bit
0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction In my previous article (http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/SSIS/A_9150-Loading-XML-Using-SSIS.html) I showed you how the XML Source component can be used to load XML files into a SQL Server database, us…
I was working on a PowerPoint add-in the other day and a client asked me "can you implement a feature which processes a chart when it's pasted into a slide from another deck?". It got me wondering how to hook into built-in ribbon events in Office.
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now