So far, we implemented two <scope> activities that model the book ordering process. However, to trigger <compensationHandler> of the <scope> activities, we need to have either <catch>, <catchAll>, <compensationHandler>, or <terminationHandler>. We will use <catchAll>, and inside this, we will trigger <compensationHandler>. To trigger <catchAll>, we need to throw an explicit fault after the execution of the two scopes. Next, we learn how to throw this fault.
Carry out the following steps:
Add a
<sequence>activity namedthrowFaultafter the<scope>activity namedinitiateCreditCardTransaction. Then, drag-and-drop an<if>activity within it and specify its condition, as shown in the following screenshot. This condition will check the content ofinputVariableand check whether it contains thecompensatevalue:
Add a
<throw>activity inside it, so if the...