# Post-processing a record: @AfterMapping on its builder, or a @DecoratedWith decorator


--- ReceiptMapper: the hook receives ReceiptDto.Builder ---
ReceiptDto[orderId=100, total=32.50, summary=order 100: 2 line(s)]
    public ReceiptDto toReceipt(Order order) {
        if ( order == null ) {
            return null;
        }

        ReceiptDto.Builder receiptDto = ReceiptDto.builder();

        receiptDto.orderId( order.getId() );
        receiptDto.total( orderMapper.sumOfLines( order.getLines() ) );

        summarise( order, receiptDto );

        return receiptDto.build();
    }

--- InvoiceMapper: @DecoratedWith, so two beans implement the interface ---
bean invoiceMapperImpl    -> InvoiceMapperImpl
bean invoiceMapperImpl_   -> InvoiceMapperImpl_
injected InvoiceMapper (the @Primary one) : InvoiceDto[id=100, status=PAID, total=32.50, display=#100 [PAID] 32.50]
the generated delegate on its own          : InvoiceDto[id=100, status=PAID, total=32.50, display=null]

--- the generated class that decorates ---
@Component
@Primary
public class InvoiceMapperImpl extends InvoiceMapperDecorator {
}