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dfielder
 Post subject: @MapKey with @OneToMany and @JoinTable does not work
PostPosted: Sat Jan 07, 2006 5:41 pm 
Newbie

Joined: Sat Jan 07, 2006 5:18 pm
Posts: 19
The following mapping generates an exception when loading from the database:

Code:
@OneToMany
@MapKey(name = "sourceType")
@Cascade( { org.hibernate.annotations.CascadeType.ALL, org.hibernate.annotations.CascadeType.DELETE_ORPHAN })
@JoinTable(table = @Table(name = "CaptureDescription_CaptureDescriptionSources"), joinColumns = { @JoinColumn(name = "captureDescriptionId") }, inverseJoinColumns = { @JoinColumn(name = "captureDescriptionSourceId") })
public Map<CaptureDescriptionSourceType, CaptureDescriptionSource> getSources()
{
    return sources;
}

From examining the generated SQL in the stack trace, Hibernate is looking for the column "sourceType" on the join table CaptureDescription_CaptureDescriptionSources instead of the left outer join table CaptureDescriptionSources. This is a uni-directional @OneToMany relationship, so the CaptureDescriptionSource entity does not know about the CaptureDescription entity. Any ideas what's going on here? This seems to be a very straightforward mapping.

Hibernate version: 3.1 final

Mapping documents: using annotations

Code between sessionFactory.openSession() and session.close(): using Spring getHibernateTemplate()

Full stack trace of any exception that occurs:

Name and version of the database you are using: MySQL 5.0.16-nt

The generated SQL (show_sql=true):

Code:
org.springframework.jdbc.BadSqlGrammarException: Hibernate operation: could not initialize a collection: [com.compudata.daf.domain.CaptureDescription.sources#1]; bad SQL grammar [select sources0_.captureDescriptionId as captureD1_1_, sources0_.captureDescriptionSourceId as captureD2_1_, sources0_.sourceType as formula2_1_, capturedes1_.id as id6_0_, capturedes1_.sleepTime as sleepTime6_0_, capturedes1_.sourceType as sourceType6_0_, capturedes1_.sourceDir as sourceDir6_0_ from CaptureDescription_CaptureDescriptionSources sources0_ left outer join CaptureDescriptionSource capturedes1_ on sources0_.captureDescriptionSourceId=capturedes1_.id where sources0_.captureDescriptionId=?]; nested exception is java.sql.SQLException: Unknown column 'sources0_.sourceType' in 'field list'
java.sql.SQLException: Unknown column 'sources0_.sourceType' in 'field list'
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2001)
   at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1168)
   at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1279)
   at com.mysql.jdbc.Connection.execSQL(Connection.java:2281)
   at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1634)
   at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
   at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139)
   at org.hibernate.loader.Loader.getResultSet(Loader.java:1669)
   at org.hibernate.loader.Loader.doQuery(Loader.java:662)
   at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
   at org.hibernate.loader.Loader.loadCollection(Loader.java:1919)
   at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:71)
   at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520)
   at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
   at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1627)
   at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
   at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
   at org.hibernate.collection.PersistentMap.values(PersistentMap.java:198)
   at org.hibernate.type.MapType.getElementsIterator(MapType.java:39)
   at org.hibernate.type.CollectionType.getElementsIterator(CollectionType.java:188)
   at org.hibernate.engine.CascadingAction.getAllElementsIterator(CascadingAction.java:266)
   at org.hibernate.engine.CascadingAction.access$100(CascadingAction.java:21)
   at org.hibernate.engine.CascadingAction$2.getCascadableChildrenIterator(CascadingAction.java:52)
   at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:288)
   at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:185)
   at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:160)
   at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
   at org.hibernate.engine.Cascade.cascade(Cascade.java:248)
   at org.hibernate.engine.Cascade.cascade(Cascade.java:223)
   at org.hibernate.event.def.DefaultDeleteEventListener.cascadeBeforeDelete(DefaultDeleteEventListener.java:220)
   at org.hibernate.event.def.DefaultDeleteEventListener.deleteEntity(DefaultDeleteEventListener.java:169)
   at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:110)
   at org.hibernate.impl.SessionImpl.fireDelete(SessionImpl.java:764)
   at org.hibernate.impl.SessionImpl.delete(SessionImpl.java:757)
   at org.hibernate.engine.CascadingAction$2.cascade(CascadingAction.java:47)
   at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:213)
   at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:157)
   at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
   at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:290)
   at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:185)
   at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:160)
   at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
   at org.hibernate.engine.Cascade.cascade(Cascade.java:248)
   at org.hibernate.engine.Cascade.cascade(Cascade.java:223)
   at org.hibernate.event.def.DefaultDeleteEventListener.cascadeBeforeDelete(DefaultDeleteEventListener.java:220)
   at org.hibernate.event.def.DefaultDeleteEventListener.deleteEntity(DefaultDeleteEventListener.java:169)
   at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:110)
   at org.hibernate.impl.SessionImpl.fireDelete(SessionImpl.java:764)
   at org.hibernate.impl.SessionImpl.delete(SessionImpl.java:743)
   at org.springframework.orm.hibernate3.HibernateTemplate$23.doInHibernate(HibernateTemplate.java:746)
   at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:365)
   at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:740)
   at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:736)
   at com.compudata.daf.data.hibernate.RepositoryDaoHibernate.delete(RepositoryDaoHibernate.java:31)
   at com.compudata.daf.business.EnvironmentManager.deleteRepository(EnvironmentManager.java:134)
   at com.compudata.daf.business.EnvironmentManagerTests.testDeleteRepository(EnvironmentManagerTests.java:88)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at junit.framework.TestCase.runTest(TestCase.java:154)
   at junit.framework.TestCase.runBare(TestCase.java:127)
   at junit.framework.TestResult$1.protect(TestResult.java:106)
   at junit.framework.TestResult.runProtected(TestResult.java:124)
   at junit.framework.TestResult.run(TestResult.java:109)
   at junit.framework.TestCase.run(TestCase.java:118)
   at junit.framework.TestSuite.runTest(TestSuite.java:208)
   at junit.framework.TestSuite.run(TestSuite.java:203)
   at junit.framework.TestSuite.runTest(TestSuite.java:208)
   at junit.framework.TestSuite.run(TestSuite.java:203)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
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emmanuel
 Post subject:
PostPosted: Thu Jan 12, 2006 2:43 pm 
Hibernate Team
Hibernate Team

Joined: Sun Sep 14, 2003 3:54 am
Posts: 7256
Location: Paris, France
this is not supported

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Emmanuel

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dfielder
 Post subject:
PostPosted: Thu Jan 12, 2006 5:34 pm 
Newbie

Joined: Sat Jan 07, 2006 5:18 pm
Posts: 19
So Hibernate doesn't support a mapped one-to-many relationship? Is it going to be implemented in the future? The documentation doesn't say anywhere that it isn't supported, so that should probably be amended.
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emmanuel
 Post subject:
PostPosted: Fri Jan 13, 2006 5:44 am 
Hibernate Team
Hibernate Team

Joined: Sun Sep 14, 2003 3:54 am
Posts: 7256
Location: Paris, France
There is an open JIRA issue if I recall

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dfielder
 Post subject:
PostPosted: Fri Jan 13, 2006 10:05 am 
Newbie

Joined: Sat Jan 07, 2006 5:18 pm
Posts: 19
Ok, good to hear - so it sounds like you're saying that it will probably be implemented in the future, it's just not working now. I can live with that. Thanks for the great tool!
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