We have a class, *SpecialContainer *(itself a subclass of *Container*),
that has a list of contents of type *TypeThreeContent*:
class SpecialContainer {
private IList<TypeThreeContent> _contents = new List<
TypeThreeContent >();
}
TypeThreeContent is just a subclass of BaseContent, both of which have some
uninteresting properties I've omitted for simplicitly. Here's the mapping:
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class xmlns="urn:nhibernate-mapping-2.2" discriminator-value="0"
name="AbstractBaseContent" table="tblContent">
<id access="field" name="_id" type="System.Int32" unsaved-value="0">
<column name="ContentID" />
<generator class="identity" />
</id>
<discriminator type="Int32">
<column name="FormsType" />
</discriminator>
<subclass name="TypeOneContent" discriminator-value="1">
</subclass>
<subclass name="TypeTwoContent" discriminator-value="2">
</subclass>
<subclass name="TypeThreeContent" discriminator-value="3">
</subclass>
</class>
<class xmlns="urn:nhibernate-mapping-2.2" discriminator-value="-1"
name="BaseContainer" table="tblContainers">
...
<subclass name="SpecialContainer" discriminator-value="1">
<join table="tblSpecialContainers">
...
<bag access="field" cascade="none" inverse="true" lazy="true"
name="_contents">
<key>
<column name="ContainerId" />
</key>
<one-to-many class="TypeThreeContent" />
</bag>
</join>
</class>
</hibernate-mapping>
The problem I'm having is that rows with other discriminator values (i.e. 1
and 2) are getting picked up in NH's fetching of the list. I used NHProf
to verify that the SQL query is *not* specifying a discriminator in its
criteria:
SELECT ...
FROM dbo.tblContent content0_
WHERE content0_.SpecialContainerId = 140 /* @p0 */
What's going on here?
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