toValue method
Implementation
String toValue() {
switch (this) {
case DeliveryStatus.successful:
return 'SUCCESSFUL';
case DeliveryStatus.throttled:
return 'THROTTLED';
case DeliveryStatus.temporaryFailure:
return 'TEMPORARY_FAILURE';
case DeliveryStatus.permanentFailure:
return 'PERMANENT_FAILURE';
case DeliveryStatus.unknownFailure:
return 'UNKNOWN_FAILURE';
case DeliveryStatus.optOut:
return 'OPT_OUT';
case DeliveryStatus.duplicate:
return 'DUPLICATE';
}
}