Alright, this is a total newbie question but it's got me stumped.

I'm trying to retrieve 2 fields from 2 different tables and map them to a VO class in Hibernate.

VO:
String productDescription;
String productFeatureDescription;

Table1: Products
...
ProductDesc
...

Table2: ProductFeatures...
ProductFeatDesc
...

I have the SQL query to do the joins but how do I map this to the VO. I have the following:

<hibernate-mapping>
<class name="vo.ProductsFeaturesVO">
<composite-id>
<key-property name="productDescription"/>
<key-property name="productFeatureDescription"/>
</composite-id>
</class>
</hibernate-mapping>

but how does hibernate actaully populate the VO?