criando camada de serviço

com a base dos comandos

VideoLocadora/src/main/java/io/github/gabryel/videolocadora/entity/customer/AddressEntity.java

@@ -2,7 +2,6 @@
 
 import com.fasterxml.jackson.annotation.JsonIdentityInfo;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import com.fasterxml.jackson.annotation.JsonManagedReference;
 import com.fasterxml.jackson.annotation.ObjectIdGenerators;
 import jakarta.persistence.Entity;
 import jakarta.persistence.FetchType;
@@ -31,7 +30,7 @@ public class AddressEntity implements Serializable {
 
     private String street;
 
-    private String number;
+    private Integer number;
 
     private String city;
 

VideoLocadora/src/main/java/io/github/gabryel/videolocadora/service/customer/CustomerService.java

@@ -0,0 +1,36 @@
+package io.github.gabryel.videolocadora.service.customer;
+
+import io.github.gabryel.videolocadora.entity.customer.CustomerEntity;
+import io.github.gabryel.videolocadora.repository.customer.CustomerRepository;
+import lombok.AllArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+@AllArgsConstructor
+public class CustomerService {
+
+    private final CustomerRepository customerRepository;
+
+    public void save(CustomerEntity customer) {
+        customerRepository.save(customer);
+    }
+
+    public CustomerEntity findById(Long id) {
+        return customerRepository.findById(id).orElse(null);
+    }
+
+    public List<CustomerEntity> findAll() {
+        return customerRepository.findAll();
+    }
+
+    public void delete(Long id) {
+        customerRepository.deleteById(id);
+    }
+
+    public List<CustomerEntity> findByCpf(String cpf) {
+        return customerRepository.findByCpf(cpf);
+    }
+
+}