}
@Override
public void writeElement(K rowKey, SN clusteringKey, String element, boolean isDefault) {
Validate.notNull(clusteringKey);
BatchContext batchContext = operations.begin();
String propertyName = tag + element;
operations.writeColumn(rowKey, clusteringKey, propertyName, "", batchContext);
if (isDefault) {
operations.writeColumn(rowKey, clusteringKey, defaultTag, element, batchContext);
}