How to use

persistAttributeValue

method

in

org.keycloak.models.jpa.UserAdapter

@Override
public void setAttribute(String name, List<String> values) {
  // Remove all existing
  removeAttribute(name);
  // Put all new
  for (String value : values) {
    persistAttributeValue(name, value);
  }
}

@Override
public void setSingleAttribute(String name, String value) {
  String firstExistingAttrId = null;
  List<UserAttributeEntity> toRemove = new ArrayList<>();
  for (UserAttributeEntity attr : user.getAttributes()) {
    if (attr.getName().equals(name)) {
      if (firstExistingAttrId == null) {
        attr.setValue(value);
        firstExistingAttrId = attr.getId();
      } else {
        toRemove.add(attr);
      }
    }
  }
  if (firstExistingAttrId != null) {
    // Remove attributes through HQL to avoid StaleUpdateException
    Query query = em.createNamedQuery("deleteUserAttributesByNameAndUserOtherThan");
    query.setParameter("name", name);
    query.setParameter("userId", user.getId());
    query.setParameter("attrId", firstExistingAttrId);
    int numUpdated = query.executeUpdate();
    // Remove attribute from local entity
    user.getAttributes().removeAll(toRemove);
  } else {
    persistAttributeValue(name, value);
  }
}