i have two primary key for a table. how can map this to the hbm.

this is my current hbm and it contains error. i need some help to fix this.

thanks

<class name="Company" table="tbl_company_product" lazy = "false">
<id name="companyID">
<generator class="native"/>
</id>
<id name="productID">
<generator class="native"/>
</id>
<property name="price"/>
</class>

Try using composite key.