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

    case PRINCIPAL_NAME:
      return getPrincipalName();

    case PRINCIPAL_TYPE:
      return getPrincipalType();

    case GRANT_INFO:
      return getGrantInfo();

    case AUTHORIZER:
      return getAuthorizer();

    }
    throw new java.lang.IllegalStateException();
  }
Returns true if field authorizer is set (has been assigned a value) and false otherwise
standalone-metastore/metastore-common/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/metastore/api/HiveObjectPrivilege.java