I have TransportPackage entity which has a collection of VehicleRates..A transportpackage can have 1-many rates,and a vehiclerate belongs to only one package
TrasnportPackage structure...
-------packageid,name,<IList>VehiceRates,description

VehicleRate structure
-------id,packageid,vehicleid,rate


i have mapped it as..in TransportPackage.hbm..

<bag name ="m_VehicleHireRateCollection" access ="field" inverse ="true" table="TransportPackageVehicleRates">
<key column ="TransportPackageID"></key>

<one-to-many class ="VehicleHireRate" />

</bag>


and in

VehicleRate.hbm..

<many-to-one class ="TransportPackage" column ="TransportPackageID" name ="m_TransportPackage" access ="field"></many-to-one>

now,does vehiclerate class need to have a reference to transportpackage class..can i remove many-one from vehiclerate.hbm and still save..