Hbm files generated for One to One Mapping

[Ravi Kiran Va]

Hi

I am trying to do establish a One to One Mapping between These two Tables Car and Registrion .

So i added a Unique Constriant on to the foreign Key .

But When i generated hbm files for these two tables it still has a Many to One mapping .


Tables :

create table Car (
CarName Varchar2(20) primary key,
CarModel Varchar2(20)
)


create table Registration (
RegNumber Varchar2(20) primary key,
CarName Varchar2(20) unique,
FOREIGN KEY (CarName)
REFERENCES Car(CarName)

)


HBM Files :
Registration.xml :

<hibernate-mapping>
    <class name="MYPACK.Registration" table="REGISTRATION" schema="CHENNAISPAT">
        <id name="regnumber" type="java.lang.String">
            <column name="REGNUMBER" length="20" />
            <generator class="assigned" />
        </id>
        <many-to-one name="car" class="MYPACK.Car" fetch="select">
            <column name="CARNAME" length="20" />
        </many-to-one>
    </class>
</hibernate-mapping>

Please tell me where i am doing wrong .

[xsunil kumar]

Please look in below link, you will get useful information

http://www.vaannila.com/hibernate/hibernate-example/hibernate-mapping-one-to-one-1.html