@Override
  public int hashCode() {
    int hashCode = 1;

    hashCode = hashCode * 8191 + ((isSetFileIds()) ? 131071 : 524287);
    if (isSetFileIds())
      hashCode = hashCode * 8191 + fileIds.hashCode();

    hashCode = hashCode * 8191 + ((isSetExpr()) ? 131071 : 524287);
    if (isSetExpr())
      hashCode = hashCode * 8191 + expr.hashCode();

    hashCode = hashCode * 8191 + ((isSetDoGetFooters()) ? 131071 : 524287);
    if (isSetDoGetFooters())
      hashCode = hashCode * 8191 + ((doGetFooters) ? 131071 : 524287);

    hashCode = hashCode * 8191 + ((isSetType()) ? 131071 : 524287);
    if (isSetType())
      hashCode = hashCode * 8191 + type.getValue();

    return hashCode;
  }
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/GetFileMetadataByExprRequest.java