Playframework sends 2 queries for fetched query - caching

Question

I currently have problems with the JPA at the play framework 1.2.4.
I need to have a UserOptions model in a separate database and want to join it lazyly cause its only needed in one query.
In this query I want to load the options eagerly and by searching I found out that can only be done by using a join query.
If I use eager instead oder lazy, everything would be fine by using User.findById() and the options and the user is found in one query.
But play sends two queries when I use a 'left join fetch' query. So heres the query:
User.find("
SELECT
user
FROM
User user
LEFT JOIN FETCH
user.options options
WHERE
user.id = ?
", Long.parseLong(id)).first();
And here the models:
#Entity
public class User extends Model
{
#OneToOne(mappedBy = "user", fetch = FetchType.LAZY)
public UserOptions options;
// ...
}
#Entity
public class UserOptions extends Model
{
#OneToOne(fetch = FetchType.LAZY)
public User user;
}
The question is why play sends two query for the fetch query?
Thanks in advance

Answer 1

Okay, got it myself. The query is still the same.
The problem was, that custom queries are not cached by default. So I used this piece of code to provide a database cache (only for the current request).
// Get database cache instance
EhCacheImpl cache = EhCacheImpl.getInstance();
// Get cached user
User user = (User)cache.get("UserWithOptions_"+id);
// Check whether a user is cached
if(user == null)
{
// Get the user
user = User.find("SELECT user FROM User user LEFT JOIN FETCH user.options options WHERE user.id = ?", Long.parseLong(id)).first();
}
// Refresh cache
cache.add("UserWithOptions_"+id, user, 0);
May the force be with you!