Inroducing BPEL4WS 1.0 by Dr. Jim Webber & Dr. Mark Little
WSJ Vol 03 Issue 08 - pg.33

Listing 1: A serviceLink Relation

<slnk:serviceLinkType name="WidgetBuyerSellerLinkType"
  xmlns:slnk="http://schemas.xmlsoap.org/ws/2002/07/service-link/">
  <slnk:role name="WidgetSeller">
    <slnk:portType name="WidgetSellerPortType"/>
  </slnk:role>
  <slnk:role name="WidgetBuyer">
    <slnk:portType name="WidgetBuyerPortType"/>
  </slnk:role>
</slnk:serviceLinkType>
<slnk:serviceLinkType name="WidgetEnquiryLinkType"
   xmlns:slnk="http://schemas.xmlsoap.org/ws/2002/07/service-link/">
  <slnk:role name="WidgetAuthority">
    <slnk:portType name="WidgetEnquirerPortType"/>
  </slnk:role>
</slnk:serviceLinkType>

Listing 2: Partner Declarations

<bpws:partners
     xmlns:sl="http://widgets.example.org/serviceLinkTypes">
  <bpws:partner name="customer"
       serviceLinkType="sl:WidgetBuyerSellerLinkType"
       myRole="WidgetSeller"
       partnerRole="WidgetBuyer"/>
  <bpws:partner name="enquirer"
       serviceLinkType="sl:WidgetEnquiryLinkType"
       myRole="WidgetAuthority" />
</bpws:partners>

Listing 3: Minimal ServiceReference declaration

<sref:serviceReference
      xmlns:sref="http://schemas.xmlsoap.org/ws/2002/07/service-reference/"
      xmlns:ws="http://widgets.example.org/ ">
  <sref:service name="ws:WidgetService"/>
</sref:serviceReference>

Listing 4: Identifying Process/Object instances with ServiceReference

<sref:serviceReference
      xmlns:sref="http://schemas.xmlsoap.org/ws/2002/07/service-reference/"
      xmlns:ws="http://widgets.example.org/ ">
  <sref:service name="ws:WidgetService"/>
  <sref:referenceProperties>
    <sref:property name="ws:existingCustomer">
         Johnny.Widget@widget-u-like.com
    </sref:property>
 </sref:referenceProperties>
</sref:serviceReference>

Listing 5: Message property examples
 
<bpws:property name="invoice-number"
     type="ins:InvoiceNumberType"/>
<bpws:property name="phone" type="xs:postiveInteger"/>
<bpws:property name="website" type="xs:anyURI"/>
<bpws:property name="email" type="ens:EmailAddressType"/>

Listing 6: Defining a propertyAlias

  <bpws:propertyAlias propertyName="tns:InvoiceNumber"    
    messageType="tns:PurchaseOrderMessage" part="invoice"
    query="/invoice-number"/>

Listing 7: Declaring a container to hold channel addition messages

<bpws:containers>
  <bpws:container name="AddChannelRequests"
       messageType="co:AddChannelMessage"/>
  <!-- Other containers ommitted for brevity -->
</bpws:containers>

Listing 8: Using containers to hold temporary variables

<bpws:container name="UpdateCounter">
   <wsdl:message name="CounterMessage">
      <wsdl:part name="counter" type="xs:int"/>
   </wsdl:message>
</bpws:container>

Listing 9: An Asynchronous invoke activity

<bpws:invoke partner="CableOperator"
      portType="co:ChannelManagementPortType"
      operation="addChannel"
      inputContainer="RequestedChannels"/>

Listing 10: A receive activity

<bpws:containers>
  <bpws:container name="addChannelOrders"
       messageType="co:AddChannelMessage"/>
</bpws:containers>
<bpws:receive partner="customer"
     portType="co:ChannelManagementPortType"
     operation="addChannel"
     container="addChannelRequest">
  <!-- Add a channel -->
</bpws:receive>

Listing 11: A reply activity

<bpws:reply partner="customer"
     portType="co:ChannelManagementPortType"
     operation="getSubscriptionStatus"
     container="CustomerSubscriptionDetails"/>

Listing 12:  A sequence activity

<bpws:sequence>
  <!-- Book hotel -->
  <bpws:invoke partner="Hotelier" … />
  <!-- Hire care -->
  <bpws:invoke partner="CarRentalAgency" … />
  <!-- Book flight -->
  <bpws:invoke partner="AirlineReservationDesk" … />
</bpws:sequence>

Listing 13: The Canonical Form of flow Activities

<bpws:flow>
  <!-- Book hotel -->
  <bpws:invoke partner="Hotelier" … />
  <!-- Hire care -->
  <bpws:invoke partner="CarRentalAgency" … />
  <!-- Book flight -->
  <bpws:invoke partner="AirlineReservationDesk" … />
</bpws:flow>

Listing 14: A scope activity

<bpws:scope containerAccessSerializable="no">
  <bpws:faultHandlers>
    <bpws:catch faultName="FlightFullFault" … />
    <bpws:catch faultName="UnknownFlightFault" … />
    <bpws:catch faultName="UnauthorizedPaymentFault" … />
    <bpws:catchAll>
      <bpws:compensate/>
    </bpws:catchAll>
  </bpws:faultHandlers>
  <!-- Booking activity -->
</bpws:scope>

Listing 15: A compensationHandler

<bpws:process>
  <!-- Process definition omitted for brevity -->
  <bpws:compensationHandler>
    <!-- Application specific compensation -->
  </bpws:compensationHandler>
</bpws:process>