The id of entity isn't id of the table

crawling5 · **Posted:** Thu Nov 19, 2009 6:43 am

Hello,

I would like to have your advice about something.

First, details on my environment : I use Hibernate 3.2.6.ga and ehcache 1.4.1.

I have a class with a generated id. But my application uses a unique property to search the entities and I would like to use ehcache according this unique property. So, the solution I've found is to set the Id annotation on my property.

Code:

@Entity
@Table(....)
public class EntityA {
     @Generated(GenerationTime.INSERT)
     @Column(unique=true)
     private Integer id;
     
     @Id
     private String uniqueProperty;

     ...
}

There's a difference between the database table and the entity.

So, my question : according to you, could it become a problem ?

Thank you.

Sukirtha · **Posted:** Thu Nov 19, 2009 7:34 am

What is your table structure?

I don't see a problem with your approach. Use the "name" attribute in column annotation to map the table column to the actual property in your entity and you should be good to go.