I have this query in JPA:
@Query("SELECT programId,COUNT(id) FROM Therapy GROUP BY programId ORDER BY COUNT(id) DESC")
List<Object> top10ProgramsOfTherapies();
It works great, but it returns a list of Objects, and I can not get the data out of it. What return type should I use to read the result data?
This query will return a list of objects array: Object[]
so you need to change your code like this:
@Query("SELECT programId,COUNT(id) FROM Therapy GROUP BY programId ORDER BY COUNT(id) DESC")
List<Object[]> top10ProgramsOfTherapies();
And for each item
in the list : item[0]
will hold the programID
value and item[1]
will hold the COUNT(id)
value, and you should cast them to their respective types as they will be just object
s.