public Map<P, D> getOriginalOperationalData() {
   return dataChange.getOriginalOperationalData();
 }
 public Map<P, D> getOriginalConfigurationData() {
   return dataChange.getOriginalConfigurationData();
 }
 public Set<P> getRemovedOperationalData() {
   return dataChange.getRemovedOperationalData();
 }
 public Set<P> getRemovedConfigurationData() {
   return dataChange.getRemovedConfigurationData();
 }
 public Map<P, D> getUpdatedConfigurationData() {
   return dataChange.getUpdatedConfigurationData();
 }
 public Map<P, D> getUpdatedOperationalData() {
   return dataChange.getUpdatedOperationalData();
 }