Hi,
I have a Man class that contains a Set ou House class.
The House class also contains a Set of Man class.
So there is a n-m relationship between Man and House that goes both way, which means there is a relationship table between Man and House that stores Man.id and House.id.

If I declare the in Man mapping:

<set name="houses" table="MAN_HOUSE" inverse="true" lazy="true">
<key column="MAN_ID"/>
<many-to-many class="House" column="HOUSE_ID"/>
</set >

and in the House mapping:

<set name="men" table="MAN_HOUSE" lazy="true">
<key column="HOUSE_ID"/>
<many-to-many class="Man" column="MAN_ID"/>
</set >

when I use Session.delete(Man) then Hibernate deletes from MAN_HOUSE (the relationship table) before deleting from Man, which is correct.

BUT, when I use Session.delete(House) then Hibernate doesn't delete from MAN_HOUSE before deleting from House, which is bad!

Any idea what needs to be modified to make this work?

thanks!

You have to remove the link from both side (Java speaking) before flushing.