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Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 3 posts ] 
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 Post subject: Inheritance mapping problem
PostPosted: Thu Jun 29, 2006 3:45 am 
Newbie

Joined: Thu May 11, 2006 5:35 am
Posts: 15
Location: clermont ferrand - France
Hello,

I'm using Hibernate 3.1, and I've got a problem to map an inheritance relation.

I've got an abstract class Person extended by two class USer and Admin.

The problem is that Admin doesn't have aditionnal attirbute but it's the concrete class.

I try to map it using the one class per concrete class strategy.

There is my mapping file :

Code:
<hibernate-mapping >
   
      <class name="persistance.Personne" abstract="true">
         <id name="id" type="integer">
            <column name="id"/>
            <generator class="assigned" />
         </id>
         <property name="nom" type="string"> </property>
         <property name="prenom" type="string"> </property>
         <many-to-one name="authentification"
              column="auth_id"
            class="persistance.Authentification"
              unique="true"
              not-null="true"
            fetch="join" />
            
         <union-subclass name="persistance.User" table="utilisateurs">
      
            <!-- <property name="nom" type="string"> </property>
            <property name="prenom" type="string"> </property> -->
            <property name="societe" type="string"> </property>
      
            <property name="quotaAut" column="quota_aut" />
            <property name="quotaCour" column="quota_cour"/>
      
            <property name="tel" type="string" />
            <property name="adresse" type="string" />
            <property name="cp" type="int" />
            <property name="ville" type="string" />
            <property name="mailPerso" type="string" />
      
            <set name="fichiers" inverse="true" lazy="true" cascade="all-delete-orphan">
               <key column="util_id"></key>
               <one-to-many class="persistance.Fichier"></one-to-many>
            </set>
      
            <set name="mails" inverse="true" lazy="true" cascade="all-delete-orphan">
               <key column="util_id"></key>
               <one-to-many class="persistance.Mail"></one-to-many>
            </set>
            
         </union-subclass>
      
         <union-subclass name="persistance.admin" table="admin">
      
         </union-subclass>

      </class>
   
   </hibernate-mapping>


and the exception returned :
Code:
ava.lang.ExceptionInInitializerError
   at persistance.HibernateUtil.<clinit>(HibernateUtil.java:17)
   at persistance.HibernateManager.recupererUser(HibernateManager.java:123)
   at metier.GestionUser.recupererUser(GestionUser.java:165)
   at controleur.ServletFichier.doPost(ServletFichier.java:190)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
   at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
   at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
   at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
   at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
   at java.lang.Thread.run(Unknown Source)
Caused by: org.hibernate.MappingException: entity class not found: persistance.admin
   at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:99)
   at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:122)
   at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:412)
   at org.hibernate.persister.entity.UnionSubclassEntityPersister.<init>(UnionSubclassEntityPersister.java:63)
   at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:61)
   at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:216)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1176)
   at persistance.HibernateUtil.<clinit>(HibernateUtil.java:13)
   ... 19 more
Caused by: java.lang.ClassNotFoundException: persistance.admin
   at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
   at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
   at java.lang.ClassLoader.loadClassInternal(Unknown Source)
   at java.lang.Class.forName0(Native Method)
   at java.lang.Class.forName(Unknown Source)
   at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:108)
   at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:96)
   ... 26 more



What's the problem ??


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 Post subject:
PostPosted: Thu Jun 29, 2006 4:52 am 
Newbie

Joined: Tue May 16, 2006 3:41 am
Posts: 5
Maybe persistance.Admin would be recognized ;)

_________________
See you, space cowboy...


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 Post subject:
PostPosted: Thu Jun 29, 2006 9:09 am 
Newbie

Joined: Thu May 11, 2006 5:35 am
Posts: 15
Location: clermont ferrand - France
Erf ;) Thanks, I saw that after ...


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