Re: Resolving complex types

6 Mar 2002 15:16:32 -0000

This is required for doing a schema to schema mapping and produce the XSLT stylesheet for the transformation. So when we present the schema to the user it makes sense to display the schema data structure with all such internal types resolved. This will show the schema structure closer to the way the instance document will look like. As you hinted this is not a simple task as there can be as many number of complexTypes with nested references. I would appreciate any ideas towards the same. 

Well if you can handle a complexType within another complexType then
it is a matter of using a recursive template to solve the arbitrary
nesting.

If you require to support all of XML Schema then it is indeed a major
engineering task.  If on the other hand it is with a limited subset
of XML Schema then it may be possible to create the required mappings
using one of XML Schema Mapping tools that are on the market.  Obviously if
you are developing a Mapper then you won't want to do this :-)

-John K



Regards,
Sheen

List:     xerces-j-user
Subject:  Re: Resolving complex types
From:     John Keyes <[EMAIL PROTECTED]>
Date:     2002-03-06 14:00:58
[Download message RAW]

Hi Sheen,

This is an XML transformation issue, i.e. XSLT.  The way to achive
this is to write a stylesheet that transforms the first schema
into the second one.  This is not a trivial task (i.e. invoking
a method) and as the schema becomes more complex the robustness and
completeness of the stylesheet will be called into question.

For what technical reason do you want to accomplish this?

-John K

Sheen Brisals wrote:


Hi,

Please can you tell me how to resolve explicit complexTypes within a schema document and generate a simple schema with annonymous complex types. if I have a schema like this,

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
<xsd:complexType name="Address">
 <xsd:sequence>
  <xsd:element name="name"   type="xsd:string"/>
  <xsd:element name="street" type="xsd:string"/>
  <xsd:element name="zip"    type="xsd:decimal"/>
 </xsd:sequence>

<xsd:element name="Customer" minOccurs="0" maxOccurs="unbounded">
   <xsd:complexType>
    <xsd:sequence>
     <xsd:element name="Name" type="xsd:string"/>
     <xsd:element name="Location" type="Address"/>
    </xsd:sequence>
   </xsd:complexType>
</xsd:element>
</xsd:schema>

how can I produce using the parser to have something like,

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
<xsd:element name="Customer" minOccurs="0" maxOccurs="unbounded">
   <xsd:complexType>
    <xsd:sequence>
     <xsd:element name="Name" type="xsd:string"/>
     <xsd:element name="Location">
       <xsd:complexType>
        <xsd:sequence>
           <xsd:element name="name"   type="xsd:string"/>
           <xsd:element name="street" type="xsd:string"/>
           <xsd:element name="zip"    type="xsd:decimal"/>
        </xsd:sequence>
      </xsd:complexType>
    </xsd:sequence>
   </xsd:complexType>
</xsd:element>
</xsd:schema>

Can I achieve this using the parser or do I have to use some other means? Please give me few ideas.

Thanks,
Sheen



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