xsd:redefine not supported

Question

Hello.  I looked through the Related Topics and didn't see the answer I was looking for.

I received some XML Schemas from a 3rd party that has xsd:redefines in some of the include files.

Is there a .NET tool that will support the xsd:redefine tag and will generate classes?

If not, then I need to modify the xsd's to eliminate the xsd:redefine.

My redefine snippet is as follows:

<xsd:redefine schemaLocation="Old.xsd">
  <xsd:complexType name="My_Type">
    <xsd:complexContent>
      <xsd:extension base="My_Type">
        <xsd:sequence>
          <xsd:element ref="IT:Token" minOccurs="0" />
          <xsd:element ref="IT:Principal" maxOccurs="unbounded" minOccurs="0" />
          <xsd:element ref="IT:Trust" minOccurs="0" />
        </xsd:sequence>
      </xsd:extension>
  </xsd:complexContent>
</xsd:complexType>

In Old.xsd, I have the following snippet:

<xsd:complexType name="My_Type">
    <xsd:sequence>
        <xsd:element name="MyAuthentication" type="MyAuthentication_Type" nillable="true" />
        <xsd:element name="PrincipalID" type="xsd:string" nillable="true" />
    </xsd:sequence>
</xsd:complexType>

Do I simply extend Old.xsd by adding the redefine elements?  Or, do I replace MyAuthentication and PrincipalID with the redefine elements?

<xsd:complexType name="My_Type">
    <xsd:sequence>
        <xsd:element name="MyAuthentication" type="MyAuthentication_Type" nillable="true" />
        <xsd:element name="PrincipalID" type="xsd:string" nillable="true" />
        <xsd:element ref="IT:Token" minOccurs="0" />
        <xsd:element ref="IT:Principal" maxOccurs="unbounded" minOccurs="0" />
        <xsd:element ref="IT:Trust" minOccurs="0" />
    </xsd:sequence>
</xsd:complexType>

or

<xsd:complexType name="My_Type">
    <xsd:sequence>
        <xsd:element ref="IT:Token" minOccurs="0" />
        <xsd:element ref="IT:Principal" maxOccurs="unbounded" minOccurs="0" />
        <xsd:element ref="IT:Trust" minOccurs="0" />
    </xsd:sequence>
</xsd:complexType>

 

Thanks!!!

Answer 1

According to http://msdn.microsoft.com/en-us/library/xsayb845(v=vs.100).aspx, xsd.exe does not support redefine. If you use XmlSerializer, you have to modify the schema to remove the redefine. DataContractSerializer doesn't support redefine, either.

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Answer 2

Hi,

You can try XSD2Code which is available in code plex.

http://xsd2code.codeplex.com/

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Welcome to MSDN Forums. Feel free to ask your questions and Please Note to Vote helpful topics and Mark answering posts. Sudhakar

Answer 3

Thanks Sudhakar.  XSD2Code doesn't support the xsd: redefine either.

Answer 4

Thanks Yi-Lun.  I am modifying the schema to remove the redefines.

Answer 5

Is there a good pattern to use for removing the redefines?  I'm trying to generate classes for the OpenCDISC Validator config XSD but they have a complicated XSD hierarchy using redefines for extension of elements.  And they all use Java, so it's apparently no problem for them. 

My question on the OpenCDISC forum: http://www.opencdisc.org/forum/validator-xsd-c-classes-xsdexe

Answer 6

Hi CuppM.  I didn't find anything to help me.  I ended up having to do it all by hand.  And, I can feel your pain from the complicated XSD hierarchy.  Hope someone else can provide a more satisfactory response.

Thanks!

Answer 7

I think I eventually figured it out.  Basically commented out the original definitions so only the most extended definitions were left uncommented.  Then it generated w/o warnings or errors.  Hacky but workss.