@Entity
public class User implements UserDetails {


public static final PasswordEncoder PASSWORD_ENCODER = new BCryptPasswordEncoder();
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@Column(unique = true)
@Size(min = 8, max = 20)
private String username;

@Column(length = 100)
private String password;

@Column(nullable = false)
private boolean enabled;

@Column(nullable = false)
private boolean master;

@OneToOne
@JoinColumn(name = "role_id")
private Role role;

@OneToOne
@JoinColumn(name = "usergroup_id")
private UserGroup userGroup;


public void setUsername(String username) {
    this.username = username;
}

public void setPassword(String password) {
    this.password = password;
}

public void setEnabled(boolean enabled) {
    this.enabled = enabled;
}

public Role getRole() {
    return role;
}

public void setRole(Role role) {
    this.role = role;
}

@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
    List<GrantedAuthority> authorities = new ArrayList<>();
    authorities.add(new SimpleGrantedAuthority(role.getName()));
    return authorities;
}

public Long getId() {
    return id;
}

public void setId(Long id) {
    this.id = id;
}

@Override
public String getPassword() {
    return password;
}

@Override
public String getUsername() {
    return username;
}

@Override
public boolean isAccountNonExpired() {
    return true;
}

@Override
public boolean isAccountNonLocked() {
    return true;
}

@Override
public boolean isCredentialsNonExpired() {
    return true;
}

@Override
public boolean isEnabled() {
    return enabled;
}
public static PasswordEncoder getPasswordEncoder() {
    return PASSWORD_ENCODER;
}

public boolean isMaster() {
    return master;
}

public void setMaster(boolean master) {
    this.master = master;
}

public UserGroup getUserGroup() {
    return userGroup;
}

public void setUserGroup(UserGroup userGroup) {
    this.userGroup = userGroup;
}
}

@Entity
 public class UserGroup {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@Column(unique = true)
private String name;

public Long getId() {
    return id;
}

public void setId(Long id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}
  }