xpdl:MessageFlow 

:BPMN:

Element Information

Model

xpdl:Message{0,1} , xpdl:Object{0,1} , xpdl:ConnectorGraphicsInfos{0,1} , ANY element from ANY namespace OTHER than 'http://www.wfmc.org/2009/XPDL2.2'
Children: xpdl:ConnectorGraphicsInfos, xpdl:Message, xpdl:Object

Attributes

QName Type Fixed Default Use Inheritable Annotation
Id xsd:NMTOKEN required
MarkerVisible restriction of xsd:NMTOKEN optional 
The type of enveloppe marker to display on the message flow. If not specified, the enveloppe should not be displayed.
Name xsd:string optional
Source xpdl:IdRef required
Target xpdl:IdRef required
Wildcard: ANY attribute from ANY namespace OTHER than 'http://www.wfmc.org/2009/XPDL2.2'

Used By

Element xpdl:MessageFlows

Source 

<xsd:element name="MessageFlow">
  <xsd:annotation>
    <xsd:documentation>:BPMN:</xsd:documentation>
  </xsd:annotation>
  <xsd:complexType>
    <xsd:sequence minOccurs="0">
      <xsd:element name="Message" type="xpdl:MessageType" minOccurs="0"/>
      <xsd:element ref="xpdl:Object" minOccurs="0"/>
      <xsd:element ref="xpdl:ConnectorGraphicsInfos" minOccurs="0"/>
      <xsd:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
    </xsd:sequence>
    <xsd:attribute name="Id" type="xsd:NMTOKEN" use="required"/>
    <xsd:attribute name="Name" type="xsd:string" use="optional"/>
    <xsd:attribute name="Source" type="xpdl:IdRef" use="required"/>
    <xsd:attribute name="Target" type="xpdl:IdRef" use="required"/>
    <xsd:attribute name="MarkerVisible" use="optional">
      <xsd:annotation>
        <xsd:documentation>The type of enveloppe marker to display on the message flow. If not specified, the enveloppe should not be displayed.</xsd:documentation>
      </xsd:annotation>
      <xsd:simpleType>
        <xsd:restriction base="xsd:NMTOKEN">
          <xsd:enumeration value="INITIATING"/>
          <xsd:enumeration value="NON_INITIATING"/>
        </xsd:restriction>
      </xsd:simpleType>
    </xsd:attribute>
    <xsd:anyAttribute namespace="##other" processContents="lax"/>
  </xsd:complexType>
</xsd:element>

Sample