Hello everyone,
I have a many-to-many relationship where two records on one side have the same parent (the owner of the relationship) on the other side. When I delete one of the two records the parent and jointable records are also deleted. I don't want this. I expect that the parent will not be removed as long as there is a child on the other side.
I have the following data:
Code:
Table A
SID | NAME
-----------------------
90 | xyz
-----------------------
91 | abc
Table AB
A_SID | B_SID
-----------------------
90 | 5
-----------------------
91 | 5
Table B
SID | NAME
-----------------------
5 | lala
And this is the hibernate mapping
Code:
mapping of class A on table A:
<hibernate-mapping ...
<set name="setOfBs" table="AB" inverse="true" cascade="delete-orphan">
<key column="A_SID" not-null="true" />
<many-to-many column="B_SID" class="B"/>
</set>
...
</hibernate-mapping>
mapping of class B on table B:
<hibernate-mapping ...
<set name="setOfAs" table="AB" lazy="false">
<key column="B_SID" not-null="true" />
<many-to-many column="A_SID" class="A"/>
</set>
...
</hibernate-mapping>
After I delete the object with SID '90' and NAME 'xyz' my data looks like this:
Code:
05/08/2011 07:29:43,259 [DEBUG] SQL - delete from AB where B_SID=?
05/08/2011 07:29:43,259 [TRACE] BasicBinder - binding parameter [1] as [BIGINT] - 5
05/08/2011 07:29:43,264 [DEBUG] SQL - delete from B where SID=? and OBJECT_VERSIE=?
05/08/2011 07:29:43,265 [TRACE] BasicBinder - binding parameter [1] as [BIGINT] - 5
05/08/2011 07:29:43,265 [TRACE] BasicBinder - binding parameter [2] as [BIGINT] - 0
05/08/2011 07:29:43,275 [DEBUG] SQL - delete from A where SID=? and OBJECT_VERSIE=?
05/08/2011 07:29:43,275 [TRACE] BasicBinder - binding parameter [1] as [BIGINT] - 90
05/08/2011 07:29:43,275 [TRACE] BasicBinder - binding parameter [2] as [BIGINT] - 0
Code:
Table A
SID | NAME
-----------------------
91 | abc
Table AB
A_SID | B_SID
-----------------------
Table B
SID | NAME
-----------------------
I would expect that the record in table B will not be removed because it's not an orphan. What am I doing wrong?
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