The strategy you are talking about is: Table-per-class For sure when you delete a subclass the delete will happen in the subclass and in all its superclass because what you are deleting is an object instance where the state is spanned between more than one table.
2010/2/2 Mind Works <[email protected]> > Hi, > > We have modeled the relationship between domain objects using the > table per subclass hierarchy structure. > > The structure looks like: > > Parent: > > <?xml version="1.0" encoding="iso-8859-1"?> > <hibernate-mapping default-lazy="false" default-cascade="none" > xmlns="urn:nhibernate-mapping-2.2" > > <class name="ParentDO, TestProject1" table="TBLX" dynamic-insert > ="false" dynamic-update="false"> > <id name="ID" column="IDCol" type="System.Int64" unsaved-value="null"> > <generator class="sequence"> > <param name="sequence">SEQ01T</param> > </generator> > </id> > <version name="ver" column="ROWID" type="Int32" generated="never" > unsaved-value="null" /> > <property name="Xid" column="XID" type="System.Int64" > insert="true" update="true" /> > <property name="RowID" column="ROWID" type="System.String" > insert="false" update="false" /> > </class> > </hibernate-mapping> > > The relationship has been mapped as follows: > > <?xml version="1.0" encoding="iso-8859-1"?> > <hibernate-mapping default-lazy="false" default-cascade="none" > xmlns="urn:nhibernate-mapping-2.2"> > <joined-subclass name="Child, TestProject1" extends="ParentDO, > TestProject1" table="TBLY" > > <key column="CHILDID" foreign-key="PARENTID"/> > <property..../> > <property..../> > </joined-subclass> > </hibernate-mapping> > > The delete cascade works as desired, however whenever we delete the > subclass the delete happens not only on the table to which the > subclass has been mapped, but also the root table and potentially > joined-subclass tables further down the inheritance hierarchy. > > We have tried setting the dynamic-update and dynamic-insert properties > to false and also tried to set the cascade property to save-update, > none... The delete still moves up to the parent table. > > Is this a known issue, or are we missing something. > > Please help. > > -- > You received this message because you are subscribed to the Google Groups > "nhusers" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<nhusers%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/nhusers?hl=en. > > -- Fabio Maulo -- You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nhusers?hl=en.
