<class name='AssetGroup' ...>
<id...></id>
<map name='assetWeights' table="SE_ASSET_GROUP_WEIGHT" outer-join="true" lazy='false' access='property' cascade='all'>
         <key column='asset_group_id'/>
         <index-many-to-many class="com.csg.pmnet.as.model.Asset" column="asset_id"/>
         <composite-element class="AssetWeight">
            <property name='weight' column='initial_weight' access='field'/>
            <property name='covered' column='covered' access='field' type='yes_no'/>
            <property name='reason' column='reason' access='field'/>
            <property name='price' column='initial_price' access='field'/>
            <property name='priceCurrency' column='price_ccy' access='field'/>            
         </composite-element>
      </map>
</class>