Hi

I have a class called X.

X contains a property Y defined as

IList<z> Y = new List<z>();

Y is represented in the .hbm.xml as:

<bag name="Y" inverse="false" table="Y_table" cascade="save-update" lazy="false" >
<key column="YId"></key>
..
..
/>

If I remove one of the list items in Y, and perform a Update on X,,, the corresponding row in Y_table is not removed, instead the YId is set to null.

Is this a correct behaviour, and is there any way to change this?

//lasse

I believe that this is the expected behavior.

It looks like you are modeling a parent/child relationship where X is the parent and Y are the children. If you want the child item to be deleted when it is removed from the collection I think you can use cascade="all-delete-orphan" - this should also delete the child if the parent is deleted.

Symon.

This seems correct...
I've read that in some applications, the "Delete" command only sets a bit "isDeleted" in the table, to be able to trace changes. Is there a "best practice" to achive this function?.


//lasse

I don't know if there's a "best practice" but there have been several discussions on this forum and the Hibernate one too. Look for "logical delete" on the forums.

Cheers,

Symon.