Как связать 2 таблицы базы данных в методе класса 1 java для управления компонентом?

Question

Я создал метод для сохранения пользовательских данных в таблицах базы данных, каждая таблица имеет разные столбцы, и я хочу указать метод, который может автоматически сохранять данные 1 столбца в другую таблицу.

1-й управляемый компонент I создано в основном хранить данные в таблице «Пользователь», и я хочу сохранить «курс» в таблице «Студент». Вот отображение гибернации для каждой таблицы и управляемого компонента:

LoginBean. java

public class LoginBean {

private String fullName_;
private String gender_;
private String phoneNumber_;
private String IC_;
private String email_;
private String Address_;
private String password_;
private String course;

List<String> courseOption;

public LoginBean(){

courseOption = new ArrayList<>();
    courseOption.add("Information Technology");
    courseOption.add("Business Management");
    courseOption.add("Engineering");
    courseOption.add("Design");



public List<String> getCourseOption() {
    return courseOption;
}

public String getCourse() {
    return course;
}

public void setCourse(String course) {
    this.course = course;
}

public String getFullName_() {
    return fullName_;
}

public void setFullName_(String fullName_) {
    this.fullName_ = fullName_;
}

public String getGender_() {
    return gender_;
}

public void setGender_(String gender_) {
    this.gender_ = gender_;
}

public String getPhoneNumber_() {
    return phoneNumber_;
}

public void setPhoneNumber_(String phoneNumber_) {
    this.phoneNumber_ = phoneNumber_;
}

public String getIC_() {
    return IC_;
}

public void setIC_(String IC_) {
    this.IC_ = IC_;
}

public String getEmail_() {
    return email_;
}

public void setEmail_(String email_) {
    this.email_ = email_;
}

public String getAddress_() {
    return Address_;
}

public void setAddress_(String Address_) {
    this.Address_ = Address_;
}

public String getPassword_() {
    return password_;
}

public void setPassword_(String password_) {
    this.password_ = password_;
}



public String saveStudent(LoginBean loginBean){
    UserDao dao = new UserDao(); //METODE SIMPAN KE DATABASE!!!
    User user = new User();
    user.setFullName(loginBean.getFullName_());
    user.setGender(loginBean.getGender_());
    user.setPhoneNumber(Integer.parseInt(loginBean.getPhoneNumber_()));
    user.setIc(loginBean.getIC_());
    user.setEmail(loginBean.getEmail_());
    user.setAddress(loginBean.getAddress_());
    user.setPassword(loginBean.getPassword_());
    dao.saveStudent(user);//untuk menyimpan di database

    Map<String,Object> sessionMapObj = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
        sessionMapObj.put("msg", "Data "+user.getIc() +"successfull!");
    return"/sukses.xhtml?faces-redirect=true";  
}

Пользователь. java (база данных)

public class User  implements java.io.Serializable {


 private Integer userId;
 private String fullName;
 private String gender;
 private Integer phoneNumber;
 private String ic;
 private String email;
 private String address;
 private String password;
 private Set students = new HashSet(0);
 private Set staffs = new HashSet(0);

public User() {
}

public User(String fullName, String gender, Integer phoneNumber, String ic, String email, String address, String password, Set students, Set staffs) {
   this.fullName = fullName;
   this.gender = gender;
   this.phoneNumber = phoneNumber;
   this.ic = ic;
   this.email = email;
   this.address = address;
   this.password = password;
   this.students = students;
   this.staffs = staffs;
}

public Integer getUserId() {
    return this.userId;
}

public void setUserId(Integer userId) {
    this.userId = userId;
}
public String getFullName() {
    return this.fullName;
}

public void setFullName(String fullName) {
    this.fullName = fullName;
}
public String getGender() {
    return this.gender;
}

public void setGender(String gender) {
    this.gender = gender;
}
public Integer getPhoneNumber() {
    return this.phoneNumber;
}

public void setPhoneNumber(Integer phoneNumber) {
    this.phoneNumber = phoneNumber;
}
public String getIc() {
    return this.ic;
}

public void setIc(String ic) {
    this.ic = ic;
}
public String getEmail() {
    return this.email;
}

public void setEmail(String email) {
    this.email = email;
}
public String getAddress() {
    return this.address;
}

public void setAddress(String address) {
    this.address = address;
}
public String getPassword() {
    return this.password;
}

public void setPassword(String password) {
    this.password = password;
}
public Set getStudents() {
    return this.students;
}

public void setStudents(Set students) {
    this.students = students;
}
public Set getStaffs() {
    return this.staffs;
}

public void setStaffs(Set staffs) {
    this.staffs = staffs;
}

Студент. java (база данных)

public class Student  implements java.io.Serializable {


 private Integer id;
 private Booking booking;
 private User user;
 private Date date;
 private String course;

public Student() {
}

public Student(Booking booking, User user, Date date, String course) {
   this.booking = booking;
   this.user = user;
   this.date = date;
   this.course = course;
}

public Integer getId() {
    return this.id;
}

public void setId(Integer id) {
    this.id = id;
}
public Booking getBooking() {
    return this.booking;
}

public void setBooking(Booking booking) {
    this.booking = booking;
}
public User getUser() {
    return this.user;
}

public void setUser(User user) {
    this.user = user;
}
public Date getDate() {
    return this.date;
}

public void setDate(Date date) {
    this.date = date;
}
public String getCourse() {
    return this.course;
}

public void setCourse(String course) {
    this.course = course;
}

Примечание: я сделал метод "courseOption" в "LoginBean", чтобы установить пример selectOneradio на странице x html.