abstract void renderElectronicMail();
public String getElectronicMailValue() {
if (partyType.getContact() != null) {
ElectronicMailType electronicMailType = partyType.getContact().getElectronicMail();
if (electronicMailType != null) {
return InvoiceTypeParser.parseElectronicMailType(electronicMailType);
} else {
return null;
}