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Innova
 Post subject: MappingException: Duplicate Import Problem
PostPosted: Tue Oct 12, 2004 5:15 pm 
Newbie

Joined: Mon Sep 13, 2004 4:00 pm
Posts: 15
Location: WI
I am getting a mapping exception, duplicate import problem with a subclass. I have only included the part of the mapping xml file that I believe is relevant. If there is something else that I should be looking at, please let me know.

What causes this exception?

Hibernate version:
2.1
Mapping documents:
Code:
    <class name="com.lmig.pm.affinity.action.helper.ClientMap" table="DEXA300T">
        <id column="CLIENT_MAP_ID" name="id" type="integer">
            <generator class="sequence"/>
        </id>
        <property column="CLASS_NAME" name="ojbConcreteClass" type="string"/>
        <subclass name="com.lmig.pm.affinity.action.helper.ClientMergerClientMap"/>
        <subclass name="com.lmig.pm.affinity.action.helper.OrgMergerClientMap"/>
        <subclass name="com.lmig.pm.affinity.action.helper.OrgTransferClientMap"
/>
        <subclass name="com.lmig.pm.affinity.action.helper.PlanTransferClientMap"/>
        <subclass name="com.lmig.pm.affinity.action.helper.BillTransferClientMap"/>
    </class>
    <class
        name="com.lmig.pm.affinity.action.helper.ClientMergerClientMap" table="DEXA300T">
        <id column="CLIENT_MAP_ID" name="id" type="integer">
            <generator class="sequence"/>
        </id>
        <property column="CLASS_NAME" name="ojbConcreteClass" type="string"/>
        <property column="SRC_CLIENT_PRY_ID" name="sourceProxyId" type="integer"/>
        <many-to-one cascade="all"
            class="com.lmig.pm.affinity.action.helper.ClientProxy"
            column="sourceProxyId" name="sourceProxy"/>
        <property column="DEST_CLIENT_PRY_ID" name="destinationProxyId" type="integer"/>
        <many-to-one cascade="all"
            class="com.lmig.pm.affinity.action.helper.ClientProxy"
            column="destinationProxyId" name="destinationProxy"/>
        <set cascade="all" lazy="true" name="childProxyMaps">
            <key column="parentId"/>
            <one-to-many class="com.lmig.pm.affinity.action.helper.OrganizationMap"/>
        </set>
    </class>

Code between sessionFactory.openSession() and session.close():

Session not open yet.

Full stack trace of any exception that occurs:
Code:
(cfg.Configuration                   255 ) Could not compile the mapping document
net.sf.hibernate.MappingException: duplicate import: ClientMergerClientMap
   at net.sf.hibernate.cfg.Mappings.addImport(Mappings.java:85)
   at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:126)
   at net.sf.hibernate.cfg.Binder.bindSubclass(Binder.java:161)
   at net.sf.hibernate.cfg.Binder.handleSubclass(Binder.java:1094)
   at net.sf.hibernate.cfg.Binder.propertiesFromXML(Binder.java:1055)
   at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:362)
   at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1256)
   at net.sf.hibernate.cfg.Configuration.add(Configuration.java:252)
   at net.sf.hibernate.cfg.Configuration.addInputStream(Configuration.java:288)
   at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:336)
   at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:1013)
   at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:969)
   at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:897)
   at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:883)
   at HibernateConn.HibernatePull.<init>(HibernatePull.java:26)
   at HibernateConn.HibernatePull.main(HibernatePull.java:34)
net.sf.hibernate.MappingException: Error reading resource: HibernateConn/mapping.hbm.xml
   at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:339)
   at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:1013)
   at net.sf.hibernate.cfg.Configuration.doConfigure(Configuration.java:969)
   at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:897)
   at net.sf.hibernate.cfg.Configuration.configure(Configuration.java:883)
   at HibernateConn.HibernatePull.<init>(HibernatePull.java:26)
   at HibernateConn.HibernatePull.main(HibernatePull.java:34)
Caused by: net.sf.hibernate.MappingException: duplicate import: ClientMergerClientMap
   at net.sf.hibernate.cfg.Mappings.addImport(Mappings.java:85)
   at net.sf.hibernate.cfg.Binder.bindClass(Binder.java:126)
   at net.sf.hibernate.cfg.Binder.bindSubclass(Binder.java:161)
   at net.sf.hibernate.cfg.Binder.handleSubclass(Binder.java:1094)
   at net.sf.hibernate.cfg.Binder.propertiesFromXML(Binder.java:1055)
   at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:362)
   at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1256)
   at net.sf.hibernate.cfg.Configuration.add(Configuration.java:252)
   at net.sf.hibernate.cfg.Configuration.addInputStream(Configuration.java:288)
   at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:336)
   ... 6 more

Name and version of the database you are using:
DB2
The generated SQL (show_sql=true):
...
Debug level Hibernate log excerpt:

...
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Innova
 Post subject:
PostPosted: Wed Oct 13, 2004 9:34 am 
Newbie

Joined: Mon Sep 13, 2004 4:00 pm
Posts: 15
Location: WI
I misunderstood the documentation. I thought that each <subclass> also needed it's own <class> element to define the properties of the class.

After re-reading it (and a good nights rest :) ) I realized that the <property> elements go right in the <subclass> element.
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