使用JPQL从实体的ElementCollections中删除

Question

My entity User has a basic collection as such:

@ElementCollection
private Set<String> completedQuests = Sets.newHashSet();

How can I remove some values from that set for all/multiple users ? What is the proper JPQL for this pseudoquery?

DELETE FROM User.completeQuests
WHERE value IN (:collectionOfValues)

(A Hibernate-only alternative, though not preferred, is also welcome.)

Answer 1

If all else fails, native SQL.

em
    .createNativeQuery(
        "DELETE FROM user_completedquests " +
        "WHERE completedquests IN (:daily)"
    )
    .setParameter("daily", dailyQuests)
    .executeUpdate();

(Haven't tested it yet)