Execute backward query with JPA I have a query function in my repository: fun findStockholderIndividualByPersonFirstNameContainsOrPersonLastNameContains(firstName: String?, lastName: String?): MutableList? It works to some extent. However StockholderIndividual is a part of a class called Register which has attribute called reference I want to include in the query a way to say WHERE Register reference = 'XXXXX' Is this possible with JPA?