public DocumentReferenceServiceComponent copy(DocumentReference e) {
DocumentReferenceServiceComponent dst = e.new DocumentReferenceServiceComponent();
dst.type = type == null ? null : type.copy();
dst.address = address == null ? null : address.copy();
dst.parameter = new ArrayList<DocumentReferenceServiceParameterComponent>();
for (DocumentReferenceServiceParameterComponent i : parameter) dst.parameter.add(i.copy(e));
return dst;
}
