<xs:complexType name="NameValuePair">
  <xs:sequence>
    <xs:element minOccurs="1" name="name" nillable="false" type="xs:string" />
    <xs:element minOccurs="0" name="stringParam" nillable="true" type="xs:string" />
    <xs:element minOccurs="0" name="booleanParam" type="xs:boolean" />
    <xs:element minOccurs="0" name="intParam" type="xs:int" />
    <xs:element minOccurs="0" name="longParam" type="xs:long" />
    <xs:element minOccurs="0" name="dateParam" nillable="true" type="xs:dateTime" />
    <xs:element minOccurs="0" name="nestedObjects" nillable="true" maxOccurs="unbounded" type="ax21:DataObject" />
  </xs:sequence>
</xs:complexType>

<xs:complexType name="DataObject">
  <xs:sequence>
    <xs:element name="type"         minOccurs="1" type="xs:string" />
    <xs:element name="name"         minOccurs="0" type="xs:string" />
    <xs:element name="objectId"     minOccurs="0" type="xs:string" />
    <xs:element name="attributes"   minOccurs="0" maxOccurs="unbounded" type="ax21:NameValuePair" />
    <xs:element name="content"      minOccurs="0" type="xs:base64Binary" />
    <xs:element name="status"       minOccurs="0" type="xs:string" />
    <xs:element name="transferId"       minOccurs="0" type="xs:long" />
  </xs:sequence>
</xs:complexType>