How to write functionality using DDD / CQRS

Question

I have a bank account domain as listed below. There can be SavingsAccount, LoanAccount, FixedAccount and so on. One user can have multiple accounts. I need to add a new fun

Answer 1

I'd rename 'AccountFactory' to AccountRepository and put an extra method in it GetAccountsForUser( int userId ) which retrieves all Accounts for a specific user.

If AccountManipulator is a webservice, then this class will use the AccountRepository, like this:

public class AccountManipulator
{

   public void FreezeAccount( int accountNr )
   {
        var repository = new AccountRepository();
        var account = repository.GetAccount(accountNr);
        account.Freeze();
        repository.Save(account);        
   }

   public ICollection GetAccountsForUser( int userId )
   {
        var repository = new AccountRepository();
        return repository.GetAccountsForUser (userId);
   }

}