Array of primitive type inside the same table of the entity

bdusauso · **Joined:** Fri Oct 21, 2005 9:27 am **Posts:** 13

Hi,

I'm using Hibernate 3.2 with annotations.
I'd like to persist an array of double (the primitive type) inside the same table as the whole class, just like a component would be.
I'd like to do that because my array has only just six elements, so I think it would be faster to fetch if it lies inside the same table as the class it belongs to, rather than a separate one.
Unfortunately I don't know if Hibernate can do that.

Here's my snippet of code representing what I'm trying to accomplish :

Code:

@Entity
@Table(name="RATES")
public class Rate {
    
    private Long id;
    //Other fields declarations
    
    private static final int VOLUME_COUNT = 6;
    private double[] rates = new double[VOLUME_COUNT];

    //Constructors and getters,setters with Hibernate annotations
    private double[] getRates() {...}

    //...
}

So, is it possible to persist an array the way I'd like to, or should I use another table to store it ?

Thanks in advance.

evdelst · **Joined:** Wed Aug 24, 2005 11:49 am **Posts:** 63

It is fairly easy,
have a look at:
http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#mapping-types-custom

bdusauso · **Joined:** Fri Oct 21, 2005 9:27 am **Posts:** 13

Thanks a lot. I didn't think about it but it is indeed obvious :)