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

      case IO:
        return getIo();

      case IA:
        return getIa();

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