if (!aMsgAttr->isObligatory()) {
validators()->registerNotObligatory(aMsgAttr->featureId(), aMsgAttr->attributeId());
}
if(aMsgAttr->isConcealment()) {
validators()->registerConcealment(aMsgAttr->featureId(), aMsgAttr->attributeId());
}
if (!aMsgAttr->isObligatory()) {
validators()->registerNotObligatory(aMsgAttr->featureId(), aMsgAttr->attributeId());
}
if(aMsgAttr->isConcealment()) {
validators()->registerConcealment(aMsgAttr->featureId(), aMsgAttr->attributeId());
}