The figure shows a screenshot of the Expression Builder dialog.

The Expression box contains the following line:

number(bpws:getVariableData('inputVariable','payload',
'/client:SOAOrderBookingProcessRequest/ns4:PurchaseOrder/
ns4:OrderInfo/ns4:OrderPrice'))

Only the followin items are shown in the BPEL Variables box:

• ns4:UserContact (not expanded)

• ns4:OrderItems (not expanded)

• ns4:SupplierInfo (not expanded)

• ns4:OrderInfo > ns4:OrderDate

• ns4:OrderInfo > ns4:OrderPrice. This item is selected.

• ns4:OrderInfo > ns4:OrderStatus

• ns4:OrderInfo > ns4:OrderComments

• ns4:OrderInfo > ns4:ApprovalRequired

In the Functions section, the dropdown shows "BPEL Extension Functions", and "getVariableData" is selected.

The Content Preview box contains:

bpws:getVariableData('inputVariable','payload',
'/client:SOAOrderBookingProcessRequest/ns4:PurchaseOrder/
ns4:OrderInfo/ns4:OrderPrice')