luissilvazup

public class D_DependencyInversionProblem {

    @AllArgsConstructor
    private static class AuthenticateLogin {

        public boolean login(User user){
            AuthenticationLinkedin authentication = new AuthenticationLinkedin();
            return authentication.login(user);
        }
    }

luissilvazup

public class D_DependencyInversionSolution {
  
    @AllArgsConstructor
    private static class AuthenticateLogin {
        private final Authentication authentication;
      
        public boolean login(User user){
            return authentication.login(user);
        }
    }

luissilvazup

public class D_DependencyInversionSolution {

    private static class AuthenticateLogin {
        private final Authentication authentication;

        private AuthenticateLogin(Authentication authentication) {
            this.authentication = authentication;
        }

        public boolean login(User user){