[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3351) Dynamic entity model and inheritance - exception when trying to persist

[Adam Warski (JIRA)]

Dynamic entity model and inheritance - exception when trying to persist
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                 Key: HHH-3351
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3351
             Project: Hibernate3
          Issue Type: Bug
          Components: core
    Affects Versions: 3.2.6
            Reporter: Adam Warski


I have two dynamic model entites mapped as follows:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
    <class entity-name="Superclass" discriminator-value="A">
        <id name="id" type="integer"><generator class="native"/></id>

        <discriminator column="DISC" type="string" />

        <property name="dataA" type="string"/>

        <subclass entity-name="Subclass" discriminator-value="B">
            <property name="dataB" type="string"/>
        </subclass>
    </class>
</hibernate-mapping>

When I try to persist one of them (just invoking session.persist("Superclass", new HashMap()); is enough) I get the following exception:

Exception in thread "main" org.hibernate.HibernateException: instance not of expected entity type: java.util.HashMap is not a: Superclass
	at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassEntityPersister(AbstractEntityPersister.java:3640)
	at org.jboss.envers.test.working.MyPersister.getSubclassEntityPersister(MyPersister.java:22)
	at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1347)
	at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:180)
	at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:512)
	at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:70)
	at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38)
	at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:618)
	at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:592)
	at org.jboss.envers.test.working.WorkingMain.main(WorkingMain.java:62)

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