Invoking a service from a BPEL process
BPEL uses Partner Link for invoking synchronous and asynchronous services. BPEL processes may alternatively use the Invoke activity that opens a port in the BPEL service component to send and receive data.
Partner Link
Partner Link provides references to external services. Partner Link is the door for outside services. While editing a BPEL process, one can create a Partner Link to invoke external services. As shown in the following screenshot, drag-and-drop the Partner Link to the JDeveloper console and select the SOA Resource Browser for selecting the WSDL for interacting with another web service using the standard WSDL interface:
As shown in the following screenshot, select the WSDL file from your filesystem ...
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