mapping Interface

kiwionly · **Joined:** Mon Dec 17, 2007 11:08 pm **Posts:** 47

hi,

I wanna mapping interface to hbm.xml file. (sorry I i repeat this post, i really find not answer)

I had a interface Payment, which class CreditCard and class Cash is implements.

my code mapping file like this

Code:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping >
   
    <class name="Payment" abstract="true">
       <id name="id" column="id" >
            <generator class="native"/>
        </id>
        
        <discriminator column="Payment_type" type="string"/>
        
        <subclass
           name="CreditCardPayment" discriminator-value="CreditCard">
           <property name="number" />
           <property name="amount" />
           <property name="expireDate" />
           <property name="BankCode" />
           <property name="creditCardType" />
       </subclass>  
       
       <subclass
           name="CashPayment" discriminator-value="Cash">
           <property name="amount" />
       </subclass>     
              
    </class>
    
</hibernate-mapping>

but it give an exception : field [id] not found on Payment

after many search on google, still canot find a answer/solution.

my question is :
1) can hibernate mapping interface directly ?
2) since interface can't cannot instantiate, hence no [id] can declare in interface, I wondering can we make the [id] exclusive withouth setter and getter in interface Payment ?

any idea ?

kiwi