<?xml version='1.0' encoding='UTF-8' ?>
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Inc., SAP AG, Sun Microsystems, and webMethods. All rights reserved.

Permission to copy and display the WS-MetadataExchange Specification
(the "Specification"), in any medium without fee or royalty is hereby
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license, under royalty-free and otherwise reasonable,
non-discriminatory terms and conditions, to their respective essential
patent claims that they deem necessary to implement the
WS-MetadataExchange Specification.

THE SPECIFICATION IS PROVIDED "AS IS," AND THE AUTHORS MAKE NO
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LIMITED TO, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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-->

<xs:schema
    targetNamespace='http://schemas.xmlsoap.org/ws/2004/09/mex'
    xmlns:tns='http://schemas.xmlsoap.org/ws/2004/09/mex'
    xmlns:wsa10='http://www.w3.org/2005/08/addressing'
    xmlns:wsa04='http://schemas.xmlsoap.org/ws/2004/08/addressing'
    xmlns:xs='http://www.w3.org/2001/XMLSchema'
    elementFormDefault='qualified'
    blockDefault='#all' >

  <!-- Get Metadata request -->
  <xs:element name='GetMetadata' >
    <xs:complexType>
      <xs:sequence>
        <xs:element ref='tns:Dialect' minOccurs='0' />
        <xs:element ref='tns:Identifier' minOccurs='0' />
      </xs:sequence>
      <xs:anyAttribute namespace='##other' processContents='lax' />
    </xs:complexType>
  </xs:element>

  <xs:element name='Dialect' type='xs:anyURI' />
  <xs:element name='Identifier' type='xs:anyURI' />

  <!-- Get Metadata response -->
  <xs:element name='Metadata' >
    <xs:complexType>
      <xs:sequence>
        <xs:element ref='tns:MetadataSection'
                    minOccurs='0'
                    maxOccurs='unbounded' />
        <xs:any namespace='##other' processContents='lax'
                minOccurs='0'
                maxOccurs='unbounded' />
      </xs:sequence>
      <xs:anyAttribute namespace='##other' processContents='lax' />
    </xs:complexType>
  </xs:element>

  <xs:element name='MetadataSection' >
    <xs:complexType>
      <xs:choice>
        <xs:any namespace='##other' processContents='lax' />
        <xs:element ref='tns:MetadataReference' />
        <xs:element ref='tns:Location' />
      </xs:choice>
      <xs:attribute name='Dialect' type='xs:anyURI' use='required' />
      <xs:attribute name='Identifier' type='xs:anyURI' />
      <xs:anyAttribute namespace='##other' processContents='lax' />
    </xs:complexType>
  </xs:element>

  <!--
       Ideally, the type of the MetadataReference would have been
       the union of wsa04:EndpointReferenceType and
       wsa10:EndpointReferenceType but unfortunately xs:union only
       works for simple types. As a result, we have to define
       the mex:MetadataReference using xs:any.
  -->

  <xs:element name='MetadataReference'>
    <xs:complexType>
      <xs:sequence>
        <xs:any minOccurs='1' maxOccurs='unbounded'
                processContents='lax' namespace='##other' />
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name='Location'
              type='xs:anyURI' />
</xs:schema>
