Question

I’m trying to have my GAE app pull some records from the Datastore but keep getting this:

javax.persistence.PersistenceException: Class PersistableItem for query has not been resolved. Check the query and any imports specification

It’s from the method here:

public List<PersistableItem> listItems() {
    EntityManager em = EMFService.get().createEntityManager();
    // Read the existing entries
    Query q = em.createQuery("select * from PersistableItem");
    List<PersistableItem> items = q.getResultList();
    return items; 
}

From what I’ve read this is about importing my PersistableItem class but I’m confused as I already do that in the .java code files.

Answer 1

The error message is strange, so this might not be your only error, but your query is wrong. select * is SQL, not JPQL. The correct query is

select p from PersistableItem p