Need Help: Entity class field without mapping

dilanalex · **Joined:** Thu Dec 11, 2008 2:30 am **Posts:** 47

Im using hibernate with annotations
My database is 'Oracle'

I want to know that is it possible to write a entity class like this :

*Table columns are different from this class field names.

Code:

@Entity
@Table(name="TRN_ODEROFSALE")
public class OrderOfSale implements Serializable {
       private String name;
       private int id;
   
       @Column(name="broker_name")
       public String getName(){
             return name;
       }

       public void setName(String name){
            this.name = name;
       }

       //this have no mapping for a particular column//
       public int getId(){
             return name;
       }

       public void setId(int id){
            this.id= id;
       }
}

Above class there is a mapping column for 'name' field.
But i dont want 'id' field to be inserted.

I did this, but it shows error like this.

'Caused by: java.sql.BatchUpdateException: ORA-00904: "ID": invalid identifier
'

dilanalex · **Joined:** Thu Dec 11, 2008 2:30 am **Posts:** 47

Hey hey........ I found the solution.

Just put the '@Transient' to the relevant field like this....

Code:

        //this have no mapping for a particular column//
        @Transient
       public int getId(){
             return name;
       } 

*Problem solved and this field will not be considered as persistent any longer

Couldn't I get a credit for this reply ? I have only two.... (.-.)

regards,
Dilan....

littypreethkr · **Posted:** Fri Feb 13, 2009 5:56 am

The fields which you dont want to be persisted should be decorated with @Transient annotation. In entity classes, all the non transient, non static instance variables are by default persisted.