Make embedded field transient in child class

solomonk · **Joined:** Tue May 30, 2006 9:45 am **Posts:** 5

I have following classes:

deal class:

Code:

@EmbeddableSuperclass
class Deal {
   private String source;

   @Column(name = "SOURCE")
   public String getSource() {
      return source;
   }

   public void setSource(String source) {
      this.source = source;
   }
}

order class:

Code:

@Entity
@Table(name="ORDERS")
public class Order {
   
   private Deal deal;

   @Embedded
   @AttributeOverrides(value = {
         @AttributeOverride(name = "source", column = @Column(name="NULLCOLUMN", insertable=false,updatable=false))})
   public Deal getDeal() {
      return deal;
   }

   public void setDeal(Deal deal) {
      this.deal = deal;
   }
}

As you can see I don't want to see Source property from Deal class in Order class (don't want to get in from database or save it back). How can we make it transient? For now we do annoying @AttributeOverride on unused NULLCOLUMN with updatable and insertable flags set to false..

emmanuel · **Posted:** Wed May 31, 2006 12:07 am

Besides that it goes against all the OO rules. This is actually not possible

solomonk · **Joined:** Tue May 30, 2006 9:45 am **Posts:** 5

emmanuel wrote:

Besides that it goes against all the OO rules. This is actually not possible

yes, I understand, but unfortunatelly we have existing DB structure and don't want to change it heavily..

have we any possibilities to change that Hibernate behaviour? Maybe by creating our own annotation tag?