How hibernate store embeddable obj
kind of stupid question but i didn't find the answer anywhere. How @Embeddable object is stored in the database, is it kind of OneToOne with FK or... For example if i have:
@Entity
public class User {
private Long id;
@Id
public Long getId() { return id; }
public void setId(Long id) { this.id = id; }
private Address address;
@Embedded
public Address getAddress() { return address; }
public void setAddress() { this.address = address; }
}
@Embeddable
public class Address {
private String street1;
public String getStreet1() { return street1; 开发者_如何转开发}
public void setStreet1() { this.street1 = street1; }
}
How the table(s) should look like?
The embedded object's fields are added as columns to the table of the owning Entity.
So you will have a table User
with fields id
and street1
.
It's very simple: all columns from the embedded object will be merged into columns of the parent, resulting with a single table. In your example you will end up with a table User
containing columns: id
and street1
. So embedded objects are basically a way to logically group columns within one table.
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