i have tried this problems to solve more than couple of hours but i could not, i basically trying to do crud operation but when i used save method for location for service implementation its show the error" inferred type 'S' for type parameter 'S' is not within its bound ; should extend 'java.lang.Integer' " so what are the steps to get rid of this massage
Repository Interface
package com.crudeoperation.demopro.Repo;
import com.crudeoperation.demopro.Entities.Location;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface LocationRepository extends CrudRepository<Integer, Location> {
}
locationServices
package com.crudeoperation.demopro.Services;
import com.crudeoperation.demopro.Entities.Location;
import java.util.List;
import java.util.Optional;
public interface LocationServices {
Location saveLocation(Location location );
Location UpdateLocation(Location location);
void deleteLocation(Location location);
Optional<Integer> getLocationById(int id);
List<Location> getAllLocation();
}
LocationServicesImpl
package com.crudeoperation.demopro.Services;
import com.crudeoperation.demopro.Entities.Location;
import com.crudeoperation.demopro.Repo.LocationRepository;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.List;
import java.util.Optional;
public class LocationServicesImpl implements LocationServices {
@Autowired
private LocationRepository locationRepository;
@Override
public Location saveLocation(Location location) {
return locationRepository.save(location);
}
@Override
public Location UpdateLocation(Location location) {
return null;
}
@Override
public void deleteLocation(Location location) {
}
@Override
public Optional<Integer> getLocationById(int id) {
return Optional.empty();
}
@Override
public List<Location> getAllLocation() {
return null;
}
}
