How to sort PageRequest on String as numeric value

Question

I currently have a system in place which can filter and sort records in the database and return them as a Paged object. One of the lines is like this:

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Answer 1

I think you could try the Spring Data JpaSort class which allows function calls.

As stated in the documentation you will have something like :

@Query("select u from User u where u.lastname like ?1%")
  List findByAndSort(String lastname, Sort sort);

repo.findByAndSort("targaryen", JpaSort.unsafe("LENGTH(firstname)"));

You could also use it with a Pageable object.