Comment by Rainer Scholz on "Replace a JPA entity with a DTO"

Hi Maddy,

I wonder how an public CustomerDTO updateCustomer(CustomerDTO customerDTO) would be implemented by you?

My straight forward solution would be:

public CustomerDTO updateCustomer(CustomerDTO customerDTO)
{
   Customer customer = customerRepository.getReferenceById(customerDTO.getId());
   customer.setFirstName(customerDTO.getFirstName());
   customer.setLastName(customerDTO.getLastName());
   // ... repeated for all fields

  customerRepository.save(customer);
}

Note: The CustomerDTO requires some kind of resource identifier. I used the primary key of the database table.

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