public Set<String> getKeyList() throws IOException {
    if (dataCollector.getCollectorType()
        .equals(DataCollector.COLLECTOR_TYPE_LIST)) {
      return dataCollector.getResult().getComparatorList().keySet();
    } else {
      throw new IOException(
          "only allowed for " + DataCollector.COLLECTOR_TYPE_LIST);
    }
  }
public Set < String > getKeyList ( ) throws IOException { if ( dataCollector . getCollectorType ( ) . equals ( DataCollector . COLLECTOR_TYPE_LIST ) ) { return dataCollector . getResult ( ) . getComparatorList ( ) . keySet ( ) ; } else { throw new IOException ( "only allowed for " + DataCollector . COLLECTOR_TYPE_LIST ) ; } }
Gets the key list.

@return the key list
@throws IOException Signals that an I/O exception has occurred.