code: @Override
  	public boolean hasMoreData(final String dataSetKey) {
  		if (getCsvFiles().containsKey(dataSetKey)) {
  			CsvFile csvFile = getCsvFiles().get(dataSetKey);
  			if (csvFile.lines == null) {
  				try {
  					csvFile.load();
  				} catch (IOException e) {
  					throw new IllegalArgumentException("Could not load CSV file " + csvFile.fileName, e);
  				}
  			}
  			return csvFile.hasNextLine();
  		}
  		return false;
  	}
docs: {@inheritDoc}
  
  @return {@code false}, as soon as the specified CSV file has no more lines available.