{ // Custom query methods if needed Page findByCategory(String category, Pageable pageable); } // Service class @Service public class FoodItemService { @Autowired private FoodItemRepository foodItemRepository; public Page getAllFoodItems(int page, int size, String sortBy, String direction) { Sort sort = Sort.by(Sort.Direction.fromString(direction), sortBy); Pageable pageable = PageRequest.of(page, size, sort); return foodItemRepository.findAll(pageable); } public Page getFoodItemsByCategory("> { // Custom query methods if needed Page findByCategory(String category, Pageable pageable); } // Service class @Service public class FoodItemService { @Autowired private FoodItemRepository foodItemRepository; public Page getAllFoodItems(int page, int size, String sortBy, String direction) { Sort sort = Sort.by(Sort.Direction.fromString(direction), sortBy); Pageable pageable = PageRequest.of(page, size, sort); return foodItemRepository.findAll(pageable); } public Page getFoodItemsByCategory("> { // Custom query methods if needed Page findByCategory(String category, Pageable pageable); } // Service class @Service public class FoodItemService { @Autowired private FoodItemRepository foodItemRepository; public Page getAllFoodItems(int page, int size, String sortBy, String direction) { Sort sort = Sort.by(Sort.Direction.fromString(direction), sortBy); Pageable pageable = PageRequest.of(page, size, sort); return foodItemRepository.findAll(pageable); } public Page getFoodItemsByCategory("> 
// Entity class
@Entity
@Table(name = "food_items")
public class FoodItem {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    
    private String name;
    private String category;
    private Double price;
    
    // Getters, setters, and constructors
}

// Repository interface
@Repository
public interface FoodItemRepository extends JpaRepository<FoodItem, Long> {
    // Custom query methods if needed
    Page<FoodItem> findByCategory(String category, Pageable pageable);
}

// Service class
@Service
public class FoodItemService {
    
    @Autowired
    private FoodItemRepository foodItemRepository;
    
    public Page<FoodItem> getAllFoodItems(int page, int size, String sortBy, String direction) {
        Sort sort = Sort.by(Sort.Direction.fromString(direction), sortBy);
        Pageable pageable = PageRequest.of(page, size, sort);
        return foodItemRepository.findAll(pageable);
    }
    
    public Page<FoodItem> getFoodItemsByCategory(String category, int page, int size, String sortBy, String direction) {
        Sort sort = Sort.by(Sort.Direction.fromString(direction), sortBy);
        Pageable pageable = PageRequest.of(page, size, sort);
        return foodItemRepository.findByCategory(category, pageable);
    }
}

// Controller class
@RestController
@RequestMapping("/api/food-items")
public class FoodItemController {
    
    @Autowired
    private FoodItemService foodItemService;
    
    @GetMapping
    public ResponseEntity<Map<String, Object>> getAllFoodItems(
            @RequestParam(defaultValue = "0") int page,
            @RequestParam(defaultValue = "10") int size,
            @RequestParam(defaultValue = "name") String sortBy,
            @RequestParam(defaultValue = "ASC") String direction) {
        
        Page<FoodItem> foodItems = foodItemService.getAllFoodItems(page, size, sortBy, direction);
        
        Map<String, Object> response = new HashMap<>();
        response.put("items", foodItems.getContent());
        response.put("currentPage", foodItems.getNumber());
        response.put("totalItems", foodItems.getTotalElements());
        response.put("totalPages", foodItems.getTotalPages());
        
        return ResponseEntity.ok(response);
    }
    
    @GetMapping("/category/{category}")
    public ResponseEntity<Map<String, Object>> getFoodItemsByCategory(
            @PathVariable String category,
            @RequestParam(defaultValue = "0") int page,
            @RequestParam(defaultValue = "10") int size,
            @RequestParam(defaultValue = "name") String sortBy,
            @RequestParam(defaultValue = "ASC") String direction) {
        
        Page<FoodItem> foodItems = foodItemService.getFoodItemsByCategory(category, page, size, sortBy, direction);
        
        Map<String, Object> response = new HashMap<>();
        response.put("items", foodItems.getContent());
        response.put("currentPage", foodItems.getNumber());
        response.put("totalItems", foodItems.getTotalElements());
        response.put("totalPages", foodItems.getTotalPages());
        
        return ResponseEntity.ok(response);
    }
}