Just another ping to see if anyone has thoughts on this.
On Sep 17, 10:17 pm, jvans <[email protected]> wrote:
> I have encountered the same problem described in this issue, and am
> left wondering why this was not considered an issue.
>
> Documentation shows the following
>
> (3)force (optional - defaults to false) "force" NHibernate to specify
> allowed discriminator values even when retrieving all instances of the
> root class.
> The force attribute is (only) useful if the table contains rows with
> "extra" discriminator values that are not mapped to a persistent
> class. This will not usually be the case.
>
> The patch provided by the user clearly shows that his mapping was not
> retrieving all instances of the root class, but rather the mapping was
> asking explicitly for Apples in one collection and Oranges in the
> other. Assuming that the table contained only items that had mappings
> it seems that the user was obeying the rules.
>
> What is not clear to me is that if I specify the following
>
> <bag name="Oranges" cascade="all-delete-orphan" inverse="true">
> <key column="ContainerID"/>
> <one-to-many
> class="NHibernate.Test.NHSpecificTest.NH1579.Orange, NHibernate.Test"/
>
> </bag>
>
> where I have explicitly stated that bag is to contain oranges, then
> how does this not line up with what the documentation states? This bag
> is to contain only Oranges, not the root class (in this case entity).
>
> If someone could help me to clarify this that would be most
> appreciated. I have always assumed that a table per hierarchy would
> allow me to map collections containing a single sub class of the
> hierarchy in exactly the way shown above.
>
> Thanks much
>
> John
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