I have a many-to-many association which is bidirectional.
Here is the scenario.
I have a User class which has a collection of Group objects.
The Group class has a collection of User objects.
When I save a user object, the save cascades and saves the group
objects too.
Same with the other way saving a group object.
The deletes also work fine by cascading the deletes only to the
association table.
The problem happens in this situation:
I have a User object which has 3 groups in its "Groups" collection.
when I remove a group from this collection and save the user object,
the Association table data does not get cleared.
This works fine from the Group side. It is a problem only from the
Users side, which is declared with inverse="true".
The mapping is as follows:
(Section from User mapping file)
<bag name="Groups"
inverse="true"
table="Association" schema="MetadataUseCases_UseCase11"
cascade="save-update" generic="true" batch-size="10">
<key column="UserId" />
<many-to-many column="GroupId" class="Group" />
</bag>
(Section from Group mapping file)
<bag name="Users"
table="Association" schema="MetadataUseCases_UseCase11"
cascade="save-update" generic="true" batch-size="10">
<key column="GroupId" />
<many-to-many column="UserId" class="User" />
</bag>
The Association table has the columns UserId and GroupId.
Any help is appreciated!
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