Let us now implement the same scenario using the <forEach> loop:
We don't want to overwrite the
<while>loop example; therefore, we will add another BPEL process component to the composite diagram. We will call itBookOrderForEachBPEL:
We will also wire it with
BookWarehousingBPEL:
We will use exactly the same schema as in the previous example. To implement the BPEL process, we will first add the
<forEach>activity to the process flow by dragging-and-dropping For Each from the Components palette (you will find it under Structured Activities):
We will double-click the
ForEach1activity and set Name asManageOrdersand name of the counter variable (Counter name) asOrderCounter:
In the Counter Values tab, we will set the start and the end value for the counter. The start value is
1and the end value is thecount($inputVariable.payload/ns1:BookData)expression. With this expression, we will count the number of books in the array. This...