distro/src/examples-server/MagicSession/Main.bpel

<?xml version="1.0" encoding="utf-8" ?>
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<process name="MagicSessionMain"
         targetNamespace="http://ode/bpel/unit-test"
         xmlns="http://docs.oasis-open.org/wsbpel/2.0/process/executable"
         xmlns:tns="http://ode/bpel/unit-test"
         xmlns:xsd="http://www.w3.org/2001/XMLSchema"
         xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
         xmlns:test="http://ode/bpel/unit-test.wsdl">

  <import location="Main.wsdl" namespace="http://ode/bpel/unit-test.wsdl"
     importType="http://schemas.xmlsoap.org/wsdl/" />

  <partnerLinks>
    <partnerLink name="responderPartnerLink" partnerLinkType="test:ResponderPartnerLinkType"
                 myRole="main" partnerRole="responder" initializePartnerRole="yes"/>
    <partnerLink name="executePartnerLink" partnerLinkType="test:ExecutePartnerLinkType"
                 myRole="executor"/>
  </partnerLinks>

  <variables>
    <variable name="dummy" messageType="test:ExecuteMessage"/>
    <variable name="dummy2" messageType="test:InitiateMessage"/>
    <variable name="dummy3" messageType="test:CallbackMessage"/>
    <variable name="dummy4" messageType="test:DoubleCallMessage"/>
    <variable name="dummy5" messageType="test:DoubleCallbackMessage"/>
    <variable name="eprmessage" messageType="test:TripleCallMessage"/>
    <variable name="myepr" messageType="test:TripleCallbackMessage"/>
    <variable name="result" messageType="test:ResultMessage"/>
  </variables>

  <sequence>
    <!-- Start message -->
    <receive name="start" partnerLink="executePartnerLink"
             portType="test:MSExecutePortType" operation="execute" createInstance="yes" variable="dummy"/>

    <!-- Initializing message, starting the responder process with the magic session
         and expecting a callback -->
    <assign>
      <copy>
        <from>123</from>
        <to variable="dummy2" part="payload"/>
      </copy>
    </assign>
    <invoke name="initiate" partnerLink="responderPartnerLink" portType="test:MSResponderPortType"
            operation="initiate" inputVariable="dummy2"/>

    <receive name="callback" partnerLink="responderPartnerLink"
             portType="test:MSMainPortType" operation="callback" variable="dummy3"/>

    <!-- Initializing message, calling our partner again with magic session (double invocation) -->
    <assign>
      <copy>
        <from>123</from>
        <to variable="dummy4" part="payload"/>
      </copy>
    </assign>
    <invoke name="get-endpoint" partnerLink="responderPartnerLink" portType="test:MSResponderPortType"
            operation="doubleCall" inputVariable="dummy4"/>

    <receive name="doubleCallback" partnerLink="responderPartnerLink"
             portType="test:MSMainPortType" operation="doubleCallback" variable="dummy5"/>

    <!-- Sending our endpoint explicitly to have our partner calling us back using it
         (demonstrating assignment) -->
    <assign>
      <copy>
        <from partnerLink="responderPartnerLink" endpointReference="myRole"/>
        <to variable="eprmessage" part="payload"/>
      </copy>
    </assign>
    <invoke name="eprPassing" partnerLink="responderPartnerLink" portType="test:MSResponderPortType"
            operation="EndpointReference" inputVariable="eprmessage"/>

    <receive name="tripleCallback" partnerLink="responderPartnerLink"
             portType="test:MSMainPortType" operation="tripleCallback" variable="myepr"/>

    <!-- Done. -->
    <assign>
      <copy>
        <from>'OK'</from>
        <to variable="result" part="ack"/>
      </copy>
    </assign>
    <reply name="end" partnerLink="executePartnerLink"
           portType="test:MSExecutePortType" operation="execute" variable="result"/>

  </sequence>
</process>