Change default sort order for Spring Data findAll() method - spring

Question

I'm using Spring Data JPA and I wonder if it is possible to change the default sort order for a entity being used by the Spring Data findAll() method?

Answer 1

You can achieve this as follows:
dao.findAll(new Sort(Sort.Direction.DESC, "colName"));
// or
dao.findAll(Sort.by("colName").descending());
Another way to achieve the same. Use the below method name:
findByOrderByIdAsc()

Answer 2

You should be able to do this by either:
in spring-data 1.5+, overriding the findAll() method in your Interface, adding the #Query annotation and creating a named Query in your Entity class like, for example, below:
Entity
#Entity
#NamedQuery(name = "User.findAll", query="select u from User u order by u.address.town")
public class User{
}
Repository
public interface UserRepository extends ... <User, Long> {
#Override
#Query
public Iterable<User> findAll();
}
or,
by creating a custom repository implementation:
http://docs.spring.io/spring-data/jpa/docs/current/reference/html/#repositories.custom-implementations

Answer 3

Use a PagingAndSortingRepository instead.
With that in place you can add a queryparameter ?sort=,
Repository:
public interface UserRepository extends PagingAndSortingRepository<User, Long> {
//no custom code needed
}
GET Request:
localhost:8080/users?sort=name,desc

Answer 4

If you want to add costom query to findAll() jpa query you can do it this way
here i changed my default order
According to my default order is primary key it is id
but now i here set id_order to change my default order
Model class
#Entity
#Table(name = "category")
#NamedQuery(name = "Category.findAll", query="select u from Category u order by
u.id_order")
public class Category {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
private String nameEn;
private String nameSi;
private String nameTa;
private Integer id_order;
Repository class
import com.model.Category;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
import java.util.List;
public interface CategoryRepository extends CrudRepository<Category, Integer> {
#Override
#Query
public Iterable<Category> findAll();