checkInvoice(Invoice) method

This method gets called before the funds get authorized from the bill payer.

Syntax

void checkInvoice ( Invoice invoice ) throws UnsupportedOperationException, BillPaymentHandlerException

Parameters

invoice – to check

Exceptions

UnsupportedOperationException – must be thrown if checking is not possible, the bill payment process will continue as if the check were successful
BillPaymentHandlerException – indicates that the bill cannot be paid, bill payment process must fail

Usage

It is important that all possible checks that could prevent the bill from being paid are executed at this stage. If the bill cannot be paid, a

BillPaymentHandlerException

must be thrown. However, the checkInvoice is not binding in any way. If the authorization is not possible at a later point no further information is sent to the bill payment handler.