I'm currently trying to generate the POJO-classes from our database in JDK5 form, without the hbm.xml configuration files.

Hibernate generates for each many-to-one relation a java.util.Set and I want to force it to create a HashMap with the table primary key as a map-key for comfort by getting objects from the collection.

Is there such a configuration in hibernate? I tried to implement a custom Strategy for the reverse engineering, but i don't see the possibility to do that there.