Hi,
I am just a beginner with hibernate. Kindly help me with following problem.

I have a class A having class B as an attribute. And class B is having just a map as an attribute in it.
I want that whenever a record is inserted/deleted in table for A, it should insert/delete corresponding record from table for its map.
It would have been easy to map it if class A directly contained a map in it. But what will be the optimised way to map it in this case?

Though I have achieved it by following hibernate mapping, I have to use an intemediate table for B which can be avoided. Kindly let me know if any suggestion.

<class name="A" table="TBL_A">
<id name="id" column="A_ID" type="java.lang.Integer">
<generator class="sequence">
<param name="sequence">A_sequence</param>
</generator>
</id>
<many-to-one name="positionMap"
class="B"
column="ID"
cascade="all"
unique="true"/>
<class/>
<class name="B" table="TBL_B">
<id name="id" column="ID">
<generator class="sequence">
<param name="sequence">B_sequence</param>
</generator>
</id>
<map name="CMap" table="TBL_C" cascade="all">
<key column="ID" />
<index column="C_KEY"/>
<element column="C_VALUE"/>
</map>
</class>


Thanks in adavnce.