Changing value of a property at insertion time

Aryan · **Posted:** Tue Sep 30, 2008 7:15 am

Hi All,

I have a POJO which is having an int (primitive) field. I have a specific requirement that whenever no value is passed in this fields means whenever this field defaults to zero, a null value should be stored in the corresponding nullable field of the database instead of the default value of primitive int. Can this be done using hibernate mapping?

I can not do any change in my POJO class, I have to do this on database level (i.e. Hibernate) only.

kuzhali · **Posted:** Wed Oct 01, 2008 6:51 am

Hi,
Can you attach your hbm mapping file?

Aryan · **Posted:** Wed Oct 01, 2008 7:06 am

We can just take an example. In the following mapping if the col1 filed is of int type and its an optional field, Hibernate will set its default value as an integer's default value, i.e. 0. But in database I want to set it as NULL. How can I achieve this specific requirement?

Code:

<hibernate-mapping>
   <class name="com.ibm.wdp.bss.party.entity.AddressBean"
      table="tab1">
      <id name="id" type="long" column="Id">
         <generator class="increment" />
      </id>
      
      <property name="col1" type="int" column="COL"/>
      
   </class>
</hibernate-mapping>