So there is this wonderfully clear sentenece in the current (1.2) documentation:
"Please note that NHibernate does not support bidirectional
one-to-many associations with an indexed collection (list, map or
array) as the "many" end, you have to use a set or bag mapping. "
Here's what I'm trying to do, perhaps it isn't supported.
I have a many-to-many that I'm implementing with two one-to-many on a
bridge class.
[Equipment] <-->[EquipmentSequenceToEquipment] <--> [EquipmentSequence]
This worked great as two bags marked with inverse="true" and
cascade="all-delete-orphan". I'd set the properties on the
EquipmentSequenceToEquipment or adding the link, and remove it from
the respective collections to delete the link.
Now I want to have the list sorted, things have gone downhill.
This works for adding elements:
<list name="EquipmentSequenceToEquipment" inverse="true"
lazy="true" cascade="all-delete-orphan">
<key column="EquipmentSequenceId"/>
<index column="PositionIndex" />
<one-to-many class="EquipmentSequenceToEquipment"/>
</list>
but as soon as I remove an element, NH tries to do two things:
1) set the EquipmentSequenceToEquipment.Equipment column to null
2) delete the EquipmentSequenceToEquipment object.
#2 is what I want it to do. I don't need it to set the column to null
before it deletes the entity.
Is there a way to get this to work, or am I going to need to go back
to using a bag, and updating the index myself?
-Will
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