doubango-android/schemas/resource-lists-diff.xml

<?xml version="1.0" encoding="UTF-8"?>
  <xs:schema
         targetNamespace="urn:ietf:params:xml:ns:resource-lists"
         xmlns="urn:ietf:params:xml:ns:resource-lists"
         xmlns:xs="http://www.w3.org/2001/XMLSchema"
         elementFormDefault="qualified">

     <!-- include patch-ops type definitions -->
      <xs:include
           schemaLocation="urn:ietf:params:xml:schema:patch-ops"/>

     <!-- partial updates -->
   <xs:element name="resource-lists-diff">
    <xs:sequence minOccurs="0" maxOccurs="unbounded">
     <xs:choice>
      <xs:element name="add">
       <xs:complexType mixed="true">
        <xs:complexContent>
         <xs:extension base="add">
          <xs:anyAttribute processContents="lax"/>
         </xs:extension>
        </xs:complexContent>
       </xs:complexType>
      </xs:element>
      <xs:element name="remove">
       <xs:complexType>
        <xs:complexContent>
         <xs:extension base="remove">
          <xs:anyAttribute processContents="lax"/>
         </xs:extension>
        </xs:complexContent>
       </xs:complexType>
      </xs:element>
      <xs:element name="replace">
       <xs:complexType mixed="true">
        <xs:complexContent>
         <xs:extension base="replace">
          <xs:anyAttribute processContents="lax"/>
         </xs:extension>
        </xs:complexContent>
       </xs:complexType>
      </xs:element>
      <xs:any namespace="##other" processContents="lax"/>
     </xs:choice>
    </xs:sequence>
    <xs:anyAttribute processContents="lax"/>
   </xs:element>
  </xs:schema>