WS-BPEL 2.0 Beginner's Guide

Time for action – declaring the cancel operation on the BPEL process interface

To add the cancel operation to the BPEL process WSDL interface, we will proceed as follows:

1. We will open the BookWarehousingBPEL.wsdl interface.
2. We will scroll down to the declaration of the BookWarehousingBPEL port type. We can see that the port type specifies a single process operation:
   
3. We will add the cancel operation, which the client will use to cancel the running BPEL instance. In our example, we will use the same input message as in the process operation:
   
4. Next, we will ...