package com.baeldung.models; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity public class Subject { @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private long id; @Column(nullable = false) private String name; public Subject() { } 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; } }