[castor-dev] Problem with xsi:type

[jasbir . matharu]

I have a problem when I use dervied types in a schema combined with using
the xsi:type attribute in the XML.

Here is the sample schema..

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
  <xsd:complexType name="_Transaction">
    <xsd:sequence>
      <xsd:element name="user_id" type="xsd:string"/>
    </xsd:sequence>
  </xsd:complexType>
  <xsd:complexType name="_Transaction_Login">
    <xsd:complexContent>
      <xsd:extension base="_Transaction">
        <xsd:sequence>
           <xsd:element name="password" type="xsd:string"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  <xsd:complexType name="_Transaction_Submit">
    <xsd:complexContent>
      <xsd:extension base="_Transaction">
        <xsd:sequence>
           <xsd:element name="application_number" type="xsd:string"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  <xsd:element name="Request">
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element name="Transaction" type="_Transaction"/>
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>
</xsd:schema>

and here is the XML

<?xml version="1.0" encoding="UTF-8"?>
<Request xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >
  <Transaction xsi:type="_Transaction_Login">
    <user_id>test</user_id>
    <password>xxx</password>
  </Transaction>
</Request>

When I try to validate the XML it returns the following

: unable to instantiate a new type of: castor_gen_1._Transaction_Login

The reason for the error is class _Transaction_Login is generated as
abstract.  How do I solve this?

Thanks in advance.

Jasbir





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