@org.apache.thrift.annotation.Nullable
  public java.lang.Object getFieldValue(_Fields field) {
    switch (field) {
    case ROW:
      return getRow();

    case COLUMNS:
      return getColumns();

    case SORTED_COLUMNS:
      return getSortedColumns();

    }
    throw new java.lang.IllegalStateException();
  }
Returns true if field sortedColumns is set (has been assigned a value) and false otherwise
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/generated/TRowResult.java