I have been using the ant task to generate my hbm.xml files.
However i noticed that by default every object i generate this way, primary keys are defaulted to <generator class="assigned"/>

is there any way to cause the default primary key to be

<generator class="native"/>


Ive been search for docs on how to do this but have found nothing yet.

no default option available (yet).

you can specify explicit generator like this:
<!-- table allows you to override/define how reverse engineering
are done for a specific table -->
<table name="ORDERS">
<primary-key>
<generator class="sequence">
<param name="table">seq_table</param>
</generator>
<column name="CUSTID" foreign-table="CUSTOMER" foreign-column="CUSTID" />
</primary-key>
<column name="NAME" property="orderName" type="string" />
</table>


above is from http://www.hibernate.org/hib_docs/tools ... ml_single/