CODEWITHSUNDEEP
javahibernate
Roberto Fonseca
Roberto Fonseca

Reputation: 115

hibernate - Model of Classes

I'm new in hibernate and I want to solve some doubt. At first, I've been searching for some kind of entity that I want to understand how do I map my entity, but I didnt find nothing so "comum" and simple to understand and I need help with this.

I have a class named "client" and another called "adress" and other called "company", Client has a list of adress, and company just once, but how do I map this?

I say, when use @manytoone (mapped by) or other kind?

My class CLIENT:

@Entity
public class Client {
    @Id
    @GeneratedValue
    private long id;
    private String name;
    //Adress
    private List<Adress> adress;
}

My Class Adress:

@Entity
public class Adress{
    @Id
    @GeneratedValue
    private Long id;
    private String pobox;
}

My Class Company:

@Entity
public class Company{
    @Id @GeneratedValue
    private Long id;
    private String name;

    //Adress
    private Adress adress;
}

Upvotes: 1

Views: 569

Answers (1)

Vincent Ramdhanie
Vincent Ramdhanie

Reputation: 103135

An address is usually one to one. That is, a company would not share an address with another company, would it? So you can try:

  @OneToOne(cascade = CascadeType.ALL)
  @JoinColumn(name="address_id")
  private Adress address;

Upvotes: 2

Related Questions