<!--
  The 'xsd' namespace is the "schema of schemas" as defined by the XSchema
  standard.  The 'xlink' namespace defines the namespace for XLink attributes
  and elements.  The targetNamespace defines the URI of the namespace
  which THIS XSchema is defining.  Other XSchemas should use this URL
  when referring to things defined in this XSchema.
 -->
<xsd:schema xmlns="http://awareness.ics.uci.edu/~rsilvafi/yancees/xsd/sienaEvent2.xsd"
            xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:evt="http://awareness.ics.uci.edu/~rsilvafi/yancees/xsd/event.xsd"
            targetNamespace="http://awareness.ics.uci.edu/~rsilvafi/yancees/xsd/sienaEvent2.xsd"
            elementFormDefault="qualified"
            attributeFormDefault="qualified">


<!-- Import namespaces used -->
  <xsd:import namespace="http://awareness.ics.uci.edu/~rsilvafi/yancees/xsd/event.xsd"
              schemaLocation="http://awareness.ics.uci.edu/~rsilvafi/yancees/xsd/event.xsd"/>


<!--
xmlns="http://awareness.ics.uci.edu/~rsilafi/yancess/xsd/event.xsd"
targetNamespace="http://awareness.ics.uci.edu/~rsilvafi/yancess/xsd/event.xsd"
 -->

 <xsd:annotation>
    <xsd:documentation>
       This XML Schema file defines the basic siena event structure.

    </xsd:documentation>
  </xsd:annotation>


  <!--
    TYPE: HeaderType

    The Event type defines the basic event structure with its header, where
    meta-information and annotations can be added, and the body, where the
    sequence of attribute/value pairs are defined.

   -->
  <xsd:complexType name="SienaHeaderType">
     <xsd:complexContent>
        <xsd:extension base="evt:HeaderType">
           <xsd:sequence minOccurs="1" maxOccurs="unbounded">
              <xsd:element name="attribute" type="AttributeType"
                       minOccurs="0" maxOccurs="1"/>
           </xsd:sequence>
        </xsd:extension>
     </xsd:complexContent>
  </xsd:complexType>


   <!--
    TYPE: SienaBodyType

    The Event type defines the basic event structure with its header, where
    meta-information and annotations can be added, and the body, where the
    sequence of attribute/value pairs are defined.

   -->
   <xsd:complexType name="SienaBodyType">
      <xsd:complexContent>
        <xsd:extension base="evt:BodyType">
           <xsd:sequence minOccurs="1" maxOccurs="unbounded">
              <xsd:element name="attribute" type="AttributeType"/>
           </xsd:sequence>
        </xsd:extension>
     </xsd:complexContent>
   </xsd:complexType>

   <!--
    TYPE: NameType

    A name is a string
   -->
  <xsd:complexType name="AttributeType">
     <xsd:simpleContent>
        <xsd:extension base="ValueType">
           <xsd:attribute name="name" type="xsd:string"/>
        </xsd:extension>
     </xsd:simpleContent>
  </xsd:complexType>


  <!--
    TYPE: sienaString

    Defines a siena string simple type.
   -->
  <xsd:simpleType name="sienaString">
     <xsd:restriction base="xsd:string"/>
  </xsd:simpleType>

  <!--
    TYPE: sienaInt

    Defines a siena int simple type.
   -->
  <xsd:simpleType name="sienaInt">
     <xsd:restriction base="xsd:int"/>
  </xsd:simpleType>

  <!--
    TYPE: sienaLong

   Defines a siena long simple type.
   -->
  <xsd:simpleType name="sienaLong">
     <xsd:restriction base="xsd:long"/>
  </xsd:simpleType>

  <!--
    TYPE: sienaFloat

     Defines a siena float simple type.
   -->
  <xsd:simpleType name="sienaFloat">
     <xsd:restriction base="xsd:float"/>
  </xsd:simpleType>

  <!--
    TYPE: sienaDouble

    Defines a siena double simple type.
   -->
  <xsd:simpleType name="sienaDouble">
     <xsd:restriction base="xsd:double"/>
  </xsd:simpleType>

 <!--
    TYPE: sienaBoolean

    Defines a siena boolean simple type.
   -->
  <xsd:simpleType name="sienaBoolean">
     <xsd:restriction base="xsd:boolean"/>
  </xsd:simpleType>

 <!--
    TYPE: sienaHexBinary

    Defines a siena boolean simple type.
   -->
  <xsd:simpleType name="sienaHexBinary">
     <xsd:restriction base="xsd:hexBinary"/>
  </xsd:simpleType>

   <!--
    TYPE: ValueType

    Defines all the possible types an attribute may have.
   -->
  <xsd:simpleType name="ValueType">
     <xsd:union memberTypes="sienaString sienaInt sienaLong sienaFloat sienaDouble sienaBoolean sienaHexBinary"/>
  </xsd:simpleType>


</xsd:schema>