public boolean isSet(_Fields field) {
    if (field == null) {
      throw new java.lang.IllegalArgumentException();
    }

    switch (field) {
    case SCHEMA:
      return isSetSchema();
    case VERSION:
      return isSetVersion();
    case CREATED_AT:
      return isSetCreatedAt();
    case COLS:
      return isSetCols();
    case STATE:
      return isSetState();
    case DESCRIPTION:
      return isSetDescription();
    case SCHEMA_TEXT:
      return isSetSchemaText();
    case FINGERPRINT:
      return isSetFingerprint();
    case NAME:
      return isSetName();
    case SER_DE:
      return isSetSerDe();
    }
    throw new java.lang.IllegalStateException();
  }
Returns true if field corresponding to fieldID 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/SchemaVersion.java