@Entity
public class Comment {
    @Id @GeneratedValue
    @Getter @Setter
    private long id;

    @Getter @Setter
    @OneToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "author_id")
    private User commentAuthor;

    @Getter @Setter
    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "article_id")
    private Article associatedArticle;

    @Getter @Setter
    @Column(columnDefinition="DATETIME")
    @Temporal(TemporalType.TIMESTAMP)
    private Date date;


    @Getter @Setter
    @Type(type="text")
    private String commentText;

    public Comment(User author, String text){
        this.commentAuthor = author;
        this.commentText = text;
        this.date = new Date();
    }
}

@Entity
public class User {

    @Getter @Setter
    private String username;

    @Getter @Setter
    private String password;

    @Id
    @Getter @Setter
    private String email;

    @Getter @Setter
    private String role;

    @Getter @Setter
    @Column(columnDefinition="DATETIME")
    @Temporal(TemporalType.TIMESTAMP)
    private Date registerDate;

    public User(String username, String password, String email){
        this.username = username;
        this.password = BCrypt.hashpw(password, BCrypt.gensalt());
        this.email = email;
        this.registerDate = new Date();
        this.role = "USER";
}

public User(){};