I had to make following change in hbm.xml so that hibernate 
synchronizer generates DDL for me.
 <property name='suit' type="java.lang.String">
    <column name="suitType"  length="30"/>
    <type name="EnumUserType">
      <param name="enumClassName">com.company.project.Suit</param>
    </type>
  </property>
with original mapping file entry shown at top, hibernate synchroniser 
was not generating DDL, and I had to manually modify DDL after 
generating it with enum property commented out.

Rgds,
Hari Sujathan