Unique foreign key names

dddsample/src/main/resources/se/citerus/dddsample/infrastructure/persistence/hibernate/HandlingEvent.hbm.xml

     <id name="id" column="id">
       <generator class="org.hibernate.id.IdentityGenerator"/>
     </id>
-    <many-to-one name="voyage" column="voyage_id" not-null="false" cascade="none" foreign-key="voyage_fk"/>
+    <many-to-one name="voyage" column="voyage_id" not-null="false" cascade="none" foreign-key="event_voyage_fk"/>
     <many-to-one name="location" column="location_id" not-null="true" cascade="none" foreign-key="location_fk"/>
     <many-to-one name="cargo" column="cargo_id" not-null="true" cascade="none" foreign-key="cargo_fk"/>
     <property name="completionTime" column="completionTime" not-null="true"/>

dddsample/src/main/resources/se/citerus/dddsample/infrastructure/persistence/hibernate/Leg.hbm.xml

       <generator class="org.hibernate.id.IdentityGenerator"/>
     </id>
 
-    <many-to-one name="voyage" column="voyage_id" cascade="none" foreign-key="voyage_fk"/>
+    <many-to-one name="voyage" column="voyage_id" cascade="none" foreign-key="leg_voyage_fk"/>
 
     <many-to-one name="loadLocation" column="load_location_id" cascade="none" foreign-key="load_location_fk"/>
     <property name="loadTime" column="load_time" not-null="true"/>

dddsample/src/main/resources/se/citerus/dddsample/infrastructure/persistence/hibernate/Voyage.hbm.xml

 
     <component name="schedule">
       <list name="carrierMovements" cascade="all-delete-orphan">
-        <key column="voyage_id" foreign-key="voyage_fk"/>
+        <key column="voyage_id" foreign-key="cm_voyage_fk"/>
         <index column="cm_index"/>
         <one-to-many class="se.citerus.dddsample.domain.model.voyage.CarrierMovement"/>
       </list>