BPEL Designer
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The combination of Receive and Reply activities creates a
Request-Response operation. This activity is used in a synchronous
(request/response) operation, and specifies the same partner, port type,
and operation as the Receive activity that invoked the process.
A valid BPEL process can have only one receive activity and one reply activity.
Partner Link
Any web service that communicates with the BPEL process is identified as a Partner
Link. Each partner link will contain child elements that correspond to the available
web service activities supported by that partner link's interface. You do not directly
add elements to a partner link container. The Design view will query the partner's
WSDL and automatically populate the partner link container with the appropriate
child elements. If you need to modify a partner link, edit the partner WSDL files
which will allow the Design view to re-render the partner link, and thereby reflect
the modified interface.
Chapter 5
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In the above example, we have one partner link. SayHello_PL is the BPEL
implementation that invokes the BPEL process. To add a partner link just
drag-and-drop any external element, like a web service or a WSDL file, on the
highlighted area of the BPEL diagram. When you drag-and-drop an external
element, a partner link dialog box is shown where you can configure the partner
link by selecting the correct WSDL file.
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