[hibernate-issues] [Hibernate-JIRA] Closed: (HHH-1175) Exception when loading inheritance mapping in single file

[Steve Ebersole (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Ebersole closed HHH-1175.
-------------------------------


Closing stale resolved issues

> Exception when loading inheritance mapping in single file
> ---------------------------------------------------------
>
>                 Key: HHH-1175
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1175
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.1 rc3
>            Reporter: Barthel Steckemetz
>            Assignee: Steve Ebersole
>            Priority: Minor
>             Fix For: 3.2.0.cr2
>
>         Attachments: HbmBinder.patch, single.zip, split.zip
>
>
> We are trying to mix inheritance strategies.
> We already have difficulties loading the mappings
> at configuration time.
> If we specify all mappings in a single mapping file (attached single.zip)
> we get the following error:
> org.hibernate.MappingException: Could not read mappings from resource: com/ifbag/okular/base/hibernate/tst/HibBase.hbm.xml
> 	at org.hibernate.cfg.Configuration.addResource(Configuration.java:483)
> 	at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1421)
> 	at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1389)
> 	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1370)
> 	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1346)
> 	at org.hibernate.cfg.Configuration.configure(Configuration.java:1281)
> 	at de.ifbfag.base.db.HConfiguration.configure(HConfiguration.java:53)
> 	at de.ifbfag.base.db.HConfiguration.configureDBManager(HConfiguration.java:130)
> 	at com.ifbag.okular.base.hibernate.tst.HibTestInit.init(HibTestInit.java:41)
> 	at com.ifbag.okular.base.hibernate.tst.HibCrk.main(HibCrk.java:42)
> Caused by: org.hibernate.MappingException: Cannot extend unmapped class com.ifbag.okular.base.hibernate.tst.HibSub
> 	at org.hibernate.cfg.HbmBinder.getSuperclass(HbmBinder.java:2772)
> 	at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:116)
> 	at org.hibernate.cfg.Configuration.add(Configuration.java:384)
> 	at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:425)
> 	at org.hibernate.cfg.Configuration.addResource(Configuration.java:480)
> 	... 9 more
> When we split up the mapping file into two (split.zip) everything works.
> The problem is in HbmBinder bindRoot:
> Iterator subclassnodes = hmNode.elementIterator( "subclass" );
> while ( subclassnodes.hasNext() ) {
> 	Element subnode = (Element) subclassnodes.next();
> 	PersistentClass superModel = getSuperclass( mappings, subnode );
> 	handleSubclass( superModel, mappings, subnode, inheritedMetas );
> }
> Iterator joinedsubclassnodes = hmNode.elementIterator( "joined-subclass" );
> while ( joinedsubclassnodes.hasNext() ) {
> 	Element subnode = (Element) joinedsubclassnodes.next();
> 	PersistentClass superModel = getSuperclass( mappings, subnode );
> 	handleJoinedSubclass( superModel, mappings, subnode, inheritedMetas );
> }
> The example class HibSubSub can not be loaded in  hmNode.elementIterator( "subclass" ),
> since it depends on HibSub which is not yet loaded in hmNode.elementIterator( "joined-subclass" );
> I do not know if there is a simple solution.
> Seems to be a general problem when mappings referentiate each other.

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