removeContexts (SAP Library - SAP Exchange Infrastructure (BC-XI))

removeContexts

Use

You use removeContext() to delete the top context for an element. The top hierarchy level is therefore deleted.

Example

In the following example, a list of debtors that lists one or more payments made in the field payment is to be transformed into a list that only contains payments made. The payments and the debtors also have the attribute id in each case to help identify them.

Source Structure (left) and Target Structure (right)

Field Name	minOccurs	maxOccurs	Field Name	minOccurs	maxOccurs
DebitorListMsg	1	1	AllDebtsMsg	1	1
Debitor	0	unbounded	debt	0	unbounded
id (Attr)			id (Attr)	1	1
payment	1	unbounded
id (Attr)

To delete the top hierarchy level Debitor, connect the element payment to the function removeContexts(). Specify as the target field the field in which you want the contents of payment to be copied to, in this case debt.

Message Mapping Using removeContexts()

Target Field Mapping

/AllDebtsMsg=/DebitorListMsg

/AllDebtsMsg/debt=removeContexts(/DebitorListMsg/Debitor/payment)

/AllDebtsMsg/debt/id=/DebitorListMsg/Debitor/payment/id

Example

Source Instance

Result

<?xml version="1.0"
encoding="UTF-8"?>

</Debitor>

</Debitor>

</Debitor>

</DebitorListMsg>

<?xml version="1.0"
encoding="UTF-8"?>

<ns0:AllDebtsMsg
xmlns:ns0="workshopDemo">

</ns0:AllDebtsMsg>