code: public List<MetadataReference> queryByMetadata(long fileId, Long parentId)
  			throws SQLException {
  
  		QueryBuilder<MetadataReference, Void> qb = queryBuilder();
  		setFkWhere(qb.where(), fileId, parentId);
  		List<MetadataReference> metadataReferences = qb.query();
  
  		return metadataReferences;
  	}
docs: Query by the metadata ids
  
  @param fileId
  file id
  @param parentId
  parent id
  @return metadata references
  @throws SQLException
  upon failure