Hibernate version:3

Name and version of the database you are using:Oracle 10G

Is it possible to map a composition relation, where component can be persisted in its own table, but not as attributes of parent table?

OR I mean a <Join> type mapping with its own class.

I can not find a such mapping.
Is it possible to do such mappings in Hibernate, or will it be possible in future?

I think you need to use one-to-one or many-to-one association mapping.

If I choose one-to-one then this means my component(value type) class is
now an entity. But It is not an entity. I only want to persist a component to its own table.

I am not sure about Hibernate 3.x, but there is not multi-table class mapping in Hibernate 2.x

As I have mentioned in my first post, if join type mapping then, this means that I divide One class into 2 or more tables.

What I wanted to do is to have 2 classes and 2 tables.
Not 1 class and 2 tables(JOIN)
OR
2 classes and 1 table(Component mapping)

1-1 mapping is the closest to what I want, but it assumes the component is an entity(for my case),
I can not understand why I just can not write something like

<component name="child" class="MyChild" table="MyChildTable">
<property name="xxx" type="string">
</property>
....
</component>

I think that will do it