I'm hoping someone can point me in the right direction. I'm using the Lightweight Class design pattern and I cannot seem to get polymorphism="explicit" working as expected.
I have an Info and Gene object, and when I try to do this:
Info info = (Info)session.load(Info.class, "PA267"); Gene gene = (Gene)session.load(Gene.class, "PA267");
The second line throws a ClassCaseException, because it's returning a GeneInfo object rather than a Gene object. It works fine if I reverse the order of the two load calls.
The only difference between what I'm doing and the example at http://hibernate.bluemars.net/41.html is that my Gene class is a joined-subclass. My mapping file looks something like:
<class name="Info" table="Data" mutable="false"> <property name="name" /> <property name="symbol" column="symbol" /> </class>
<class name="Data" table="Data" polymorphism="explicit"> <property name="name" /> <property name="symbol" />
<joined-subclass name="Gene" table="Genes">
<property name="cytogeneticLocation" />
</joined-subclass> <joined-subclass name="Subclass2" table="Subclass2">
<property name="data2" />
</joined-subclass> <joined-subclass name="Subclass3" table="Subclass3">
<property name="data3" />
</joined-subclass>
</class>Anyone have any idea what my problem is?
Thanks, -Mark
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