SocialMediaSite.java

@Entity
public class SocialMediaSite {

	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private Long id;

	private String name;

	private String description;

	@OneToMany(mappedBy = "socialMediaSite", cascade = CascadeType.ALL, orphanRemoval = true)
	private List<User> users = new ArrayList<>();
	
	//Other details.

}