@Override
 public String getDataElementIdScheme() {
   return dataElementIdScheme =
       dataElementIdScheme == null
           ? reader.getAttributeValue(FIELD_DATAELEMENTIDSCHEME)
           : dataElementIdScheme;
 }
 @Override
 public Boolean getDryRun() {
   return dryRun =
       dryRun == null
           ? (TRUE.equals(reader.getAttributeValue(FIELD_DRYRUN)) ? Boolean.TRUE : null)
           : dryRun;
 }
 @Override
 public String getStrategy() {
   return strategy = strategy == null ? reader.getAttributeValue(FIELD_IMPORTSTRATEGY) : strategy;
 }
 @Override
 public String getOrgUnitIdScheme() {
   return orgUnitIdScheme =
       orgUnitIdScheme == null ? reader.getAttributeValue(FIELD_ORGUNITIDSCHEME) : orgUnitIdScheme;
 }
 @Override
 public String getOrgUnit() {
   return orgUnit = orgUnit == null ? reader.getAttributeValue(FIELD_ORGUNIT) : orgUnit;
 }
 @Override
 public String getPeriod() {
   return period = period == null ? reader.getAttributeValue(FIELD_PERIOD) : period;
 }
 @Override
 public String getCompleteDate() {
   return completeDate =
       completeDate == null ? reader.getAttributeValue(FIELD_COMPLETEDATE) : completeDate;
 }
 @Override
 public String getDataSet() {
   return dataSet = dataSet == null ? reader.getAttributeValue(FIELD_DATASET) : dataSet;
 }