@org.apache.thrift.annotation.Nullable
    public static _Fields findByThriftId(int fieldId) {
      switch(fieldId) {
        case 1: // STRING_VALUE
          return STRING_VALUE;
        case 2: // SMALL_INT_VALUE
          return SMALL_INT_VALUE;
        case 3: // INTEGER_BITMASK
          return INTEGER_BITMASK;
        case 4: // INTEGER_FLAG
          return INTEGER_FLAG;
        case 5: // BINARY_VALUE
          return BINARY_VALUE;
        case 6: // LEN_VALUE
          return LEN_VALUE;
        default:
          return null;
      }
    }
Find the _Fields constant that matches fieldId, or null if its not found.
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/TGetInfoValue.java