24 lines
		
	
	
		
			529 B
		
	
	
	
		
			Java
		
	
	
	
	
	
			
		
		
	
	
			24 lines
		
	
	
		
			529 B
		
	
	
	
		
			Java
		
	
	
	
	
	
| package com.baeldung.dip.services;
 | |
| 
 | |
| import com.baeldung.dip.daos.CustomerDao;
 | |
| import com.baeldung.dip.entities.Customer;
 | |
| import java.util.Map;
 | |
| import java.util.Optional;
 | |
| 
 | |
| public class CustomerService {
 | |
| 
 | |
|     private final CustomerDao customerDao;
 | |
| 
 | |
|     public CustomerService(CustomerDao customerDao) {
 | |
|         this.customerDao = customerDao;
 | |
|     }
 | |
| 
 | |
|     public Optional<Customer> findById(int id) {
 | |
|         return customerDao.findById(id);
 | |
|     }
 | |
| 
 | |
|     public List<Customer> findAll() {
 | |
|         return customerDao.findAll();
 | |
|     }
 | |
| }
 |