Client.java

@Entity
@Table(name = "client")
public class Client {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer clientId;

    @Column(name = "name", nullable = false)
    private String name;

    @Column(name = "email", nullable = false)
    private String email;
  
    public Client() {

    }

    public Client(String name, String email) {
        this.name = name;
        this.email = email;
    }

    //Getters and setters...
}