criteria = session.createCriteria(WorksheetHeader.class).add(
               Expression.eq(WORKSHEET_ID, new Integer(worksheetID)));
         criteria = criteria.createAlias("products", "prod");
         criteria = criteria.createAlias("prod.costFactors", "costs");
         criteria = criteria.createAlias("costs.calculatedTypeOptions", "calcTypes");
         criteria = criteria.createAlias("costs.proratingTypeOptions", "proTypes");
//         criteria = criteria.createCriteria("products");
//         criteria = criteria.createCriteria("costFactors");
         criteria = criteria.add(Expression.eq("calcTypes.language", language));
         criteria = criteria.add(Expression.eq("proTypes.language", language));
         criteria = criteria.createCriteria("costs.descriptions");
         criteria = criteria.add(Expression.eq("language", language));

public class WorksheetHeader {
   // other properties deleted for brevity

   private Map products = null;
   // ...
}

public class WorksheetProduct {
   // other properties deleted for brevity

   private Map costFactors = null;
   // ...
}

public class WorksheetFactor {
   // ...
}

   <!-- WorksheetProduct -->
   <class name="com.fgl.ina.costestimation.WorksheetProduct" table="worksheet_product">
      <id name="ID" type="integer" column="worksheet_product_id">
         <generator class="net.sf.hibernate.id.IdentityGenerator"/>
      </id>
<!--      <many-to-one name="worksheetID"           column="worksheet_id" not-null="true"/>-->
      <property    name="productID"             column="ina_prod_id"  type="long"/>
      <property    name="unitOfMeasureQuantity" column="uom_qty"      type="float"/>

      <map name="costFactors" table="worksheet_factor" lazy="false" cascade="all" order-by="worksheet_factor_id">
         <key column="worksheet_product_id"/>
         <index column="worksheet_factor_id" type="string"/>
         <one-to-many class="com.fgl.ina.costestimation.WorksheetFactor"/>
      </map>
   </class>

   <!-- WorksheetHeader -->
   <class name="com.fgl.ina.costestimation.WorksheetHeader" table="worksheet_header">
      <id name="worksheetID" type="integer" column="worksheet_id">
         <generator class="net.sf.hibernate.id.IdentityGenerator"/>
      </id>
      <property name="description"       column="description"         type="string"/>
      <property name="vendor"            column="vendor_no"           type="string"    not-null="true"/>
      <property name="status"            column="status"              type="short"     not-null="true"/>
<!--      <many-to-one name="status" class="com.fgl.ina.costestimation.lookups.WorksheetStatus"-->
<!--         column="status" update="false" insert="false" cascade="none" outer-join="true"/>-->
      <property name="createdBy"         column="created_by"          type="string"    not-null="true"/>
      <property name="createdDate"       column="created_date"        type="timestamp" not-null="true"/>
      <property name="revisedDate"       column="last_revision_date"  type="timestamp" not-null="true"/>
      <property name="foreignStatus"     column="foreign_status"      type="short"     not-null="true"/>
<!--      <bag name="validForeignStatuses" lazy="false" cascade="none" outer-join="true" order-by="foreign_status">-->
<!--         <many-to-many class="com.fgl.ina.costestimation.lookups.ForeignExchangeStatus" outer-join="true"/>-->
<!--      </bag>   -->
      <property name="foreignContractNo" column="foreign_contract_no" type="long"      not-null="true"/>
      <property name="comments"          column="comments"            type="string"/>

      <map name="products" table="worksheet_product" lazy="false" cascade="all" order-by="worksheet_product_id">
         <key column="worksheet_id"/>
         <index column="worksheet_product_id" type="string"/>
         <one-to-many class="com.fgl.ina.costestimation.WorksheetProduct"/>
      </map>
   </class>

   <!-- WorksheetFactor -->
   <class name="com.fgl.ina.costestimation.WorksheetFactor" table="worksheet_factor">
      <id name="ID" type="integer" column="worksheet_factor_id">
         <generator class="net.sf.hibernate.id.IdentityGenerator"/>
      </id>
<!--      <many-to-one name="worksheetProductID" column="worksheet_product_id" />-->
      <property name="costFactorID"       column="cost_factor_id"    type="integer"/>
      <property name="calculatedType"     column="calculated_type"   type="short"/>
      <property name="costFactorValue"    column="cost_factor_value" type="float"/>
      <property name="foreignAmount"      column="foreign_amount"    type="float"/>
      <property name="currencyType"       column="currency_type"     type="short"/>
      <property name="exchangeRate"       column="exchange_rate"     type="float"/>
      <property name="proratingType"      column="prorating_type"    type="short"/>
      <many-to-one name="costFactor" class="com.fgl.ina.costestimation.CostFactor" insert="false" update="false"
         cascade="none" column="cost_factor_id"/>
   </class>

   <!-- Cost Factor Description -->
   <class name="com.fgl.ina.costestimation.CostFactorDescription" table="cost_factor_description" mutable="false">
      <id name="costFactorID" type="integer" column="cost_factor_id">
         <generator class="net.sf.hibernate.id.IdentityGenerator"/>
      </id>
      <property name="language"    column="locale"      type="string"/>
      <property name="description" column="description" type="string"/>
   </class>

   <!-- Cost Factor -->
   <class name="com.fgl.ina.costestimation.CostFactor" table="cost_factor" mutable="false">
      <id name="costFactorID" type="integer" column="cost_factor_id">
         <generator class="net.sf.hibernate.id.IdentityGenerator"/>
      </id>

      <bag name="calculatedTypeOptions" lazy="false" cascade="none">
         <key column="cost_factor_id"/>
<!--         <index column="allowable_type" type="integer"/>-->
         <one-to-many class="com.fgl.ina.costestimation.lookups.CalculatedTypeLookup"/>
      </bag>
      <bag name="currencyTypeOptions" lazy="false" cascade="none">
         <key column="cost_factor_id"/>
<!--         <index column="allowable_type" type="integer"/>-->
         <one-to-many class="com.fgl.ina.costestimation.lookups.CurrencyTypeLookup"/>
      </bag>
      <bag name="proratingTypeOptions" lazy="false" cascade="none">
         <key column="cost_factor_id"/>
<!--         <index column="allowable_type" type="integer"/>-->
         <one-to-many class="com.fgl.ina.costestimation.lookups.ProratingTypeLookup"/>
      </bag>

      <map name="descriptions" lazy="false" cascade="none" table="cost_factor_descriptions">
         <key column="cost_factor_id"/>
         <index column="locale" type="string"/>
         <one-to-many class="com.fgl.ina.costestimation.CostFactorDescription"/>
      </map>
   </class>