Insert using java hibernate

Question

I've got a client

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "cl_id")
private Long clId;

@JoinColumn(name = "vl_id", referencedColumnName = "vl_id")
@ManyToOne
private City cityId;

Whenever I create a new client this way:

Client c = new Client();
c.setCityId(new City());

and persist it. The city isn't persisted also if it doesn't exist. Wouldn't the city be persisted also unless the City object has got an Id ?

The last two statements seem to contradict each other. Can you explain a bit more? — Nivas
– Nivas, Commented Jan 19, 2013 at 13:27
It's just the variable that has a weired name. SetCityId() take a city as a parameter. It can take an already persisted city or a fresh one. — Majid
– Majid, Commented Jan 19, 2013 at 15:48

cporte · Accepted Answer · 2013-01-19 13:30:26Z

2

You have to enable cascading :

@JoinColumn(name = "vl_id", referencedColumnName = "vl_id")
@ManyToOne(cascade=CascadeType.PERSIST)
private City cityId;

answered Jan 19, 2013 at 13:30

cporte

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