Hibernate + Derby: Comparisons between 'BOOLEAN' and 'INTEGER' are not supported

Question

I have a problem with querying Derby database. I am using Hibernate with JPA. Problem is related (probably) to boolean columns. Each query ends with error:

org.h

Answer 1

You have to set your boolean as a parameter:

String queryString = "SELECT t FROM Task t WHERE t.deleted = :trueValue";
Query query = entityManager.createQuery(queryString);
query.setParameter("trueValue", true);
query.getResultList();

Hope it will work for you ;)