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[Teneo] Persist and load an Ecore model instance with an EReference of type EClass [message #1693500]

Fri, 24 April 2015 15:05

Timo Rohrberg

Messages: 69
Registered: September 2011
Location: Karlsruhe

Member

Hello everybody,
Hello Martin Wink

,

I am trying to persist an instance of an Ecore model which contains an EClass with an EReference of type EClass referring to either the same EClass or another one in the same Ecore model.

Without any special configuration, I get a NullPointerException deep within the Teneo framework:

java.lang.NullPointerException
	at org.eclipse.emf.teneo.hibernate.mapper.AbstractAssociationMapper.addManyToOne(AbstractAssociationMapper.java:156)
	at org.eclipse.emf.teneo.hibernate.mapper.ManyToOneMapper.process(ManyToOneMapper.java:108)
	at org.eclipse.emf.teneo.hibernate.mapper.FeatureMapper.processPAnnotatedEReference(FeatureMapper.java:194)
	at org.eclipse.emf.teneo.hibernate.mapper.FeatureMapper.process(FeatureMapper.java:110)
	at org.eclipse.emf.teneo.hibernate.mapper.EntityMapper.processFeature(EntityMapper.java:651)
	at org.eclipse.emf.teneo.hibernate.mapper.EntityMapper.processFeatures(EntityMapper.java:553)
	at org.eclipse.emf.teneo.hibernate.mapper.EntityMapper.processEntity(EntityMapper.java:377)
	at org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.processPAClass(HibernateMappingGenerator.java:238)
	at org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.processPersistentClasses(HibernateMappingGenerator.java:158)
	at org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.generate(HibernateMappingGenerator.java:118)
	at org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.generateToString(HibernateMappingGenerator.java:129)
	at org.eclipse.emf.teneo.hibernate.HbDataStore.mapEPackages(HbDataStore.java:1075)
	at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.mapModel(HbEntityDataStore.java:243)
	at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.initialize(HbEntityDataStore.java:118)
	at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.getEntityManagerFactory(HbEntityDataStore.java:333)
	at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.createEntityManager(HbEntityDataStore.java:390)
	at de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.getEntityManager(HibernatePersistenceService.java:562)
	at de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.create(HibernatePersistenceService.java:73)
	at de.vitasystems.platform.services.persistence.hibernate.test.internal.additional.StoreEClassTest.storeAndQueryEObjectWithEClassAttribute(StoreEClassTest.java:20)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.pde.internal.junit.runtime.RemotePluginTestRunner.main(RemotePluginTestRunner.java:62)
	at org.eclipse.pde.internal.junit.runtime.CoreTestApplication.run(CoreTestApplication.java:23)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1438)

Searching a bit through the internet and teneo documentation, I found [1] and [2] and tried to set the @External annotation at the reference to the EClass:

    <eStructuralFeatures xsi:type="ecore:EReference" name="eClass" lowerBound="1"
        eType="ecore:EClass http://www.eclipse.org/emf/2002/Ecore#//EClass">
      <eAnnotations source="teneo.jpa">
        <details key="appinfo" value="@External(type=&quot;org.eclipse.emf.teneo.hibernate.mapping.EcoreModelElementType&quot;)"/>
      </eAnnotations>
    </eStructuralFeatures>

At least it fails at another position then, which somehow makes sense to me as the EClass is not mapped of course:

java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: EClass is not mapped [SELECT e FROM EClass AS e WHERE id = 'null']
	at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1750)
	at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677)
	at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1683)
	at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:331)
	at org.eclipse.emf.teneo.hibernate.HbEntityDataStore$WrappedEntityManager.createQuery(HbEntityDataStore.java:570)
	at de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.loadEntityFromDB(HibernatePersistenceService.java:542)
	at de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.reassignCrossReferencedObjects(HibernatePersistenceService.java:130)
	at de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.create(HibernatePersistenceService.java:93)
	at de.vitasystems.platform.services.persistence.hibernate.test.internal.additional.StoreEClassTest.storeAndQueryEObjectWithEClassAttribute(StoreEClassTest.java:20)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.pde.internal.junit.runtime.RemotePluginTestRunner.main(RemotePluginTestRunner.java:62)
	at org.eclipse.pde.internal.junit.runtime.CoreTestApplication.run(CoreTestApplication.java:23)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: EClass is not mapped [SELECT e FROM EClass AS e WHERE id = 'null']
	at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:96)
	at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:120)
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:234)
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:158)
	at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:131)
	at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:93)
	at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:167)
	at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:301)
	at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)
	at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1800)
	at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:328)
	... 49 more
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: EClass is not mapped
	at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:189)
	at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:109)
	at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:95)
	at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:332)
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3678)
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3567)
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:708)
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:564)
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:301)
	at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:249)
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:278)
	at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:206)
	... 57 more

What else do I have to do to make it work? How would I map the EClass or can it be just stored as a string and on loading from the DB restored as an EClass reference?

I really appreciate your hints.

Thanks a lot and have a nice weekend.

Regards
Timo

Report message to a moderator

Re: [Teneo] Persist and load an Ecore model instance with an EReference of type EClass [message #1693632 is a reply to message #1693500]

Mon, 27 April 2015 07:08

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

Hi Timo,
Setting the ExternalType annotation should result in that hibernate does not try to query for EClass. So not sure if the
annotation is really being read or used. Can you check the generated hbm.xml?
(there is a getmappingxml on the datastore)

gr. Martin

On 24-04-15 17:05, Timo Rohrberg wrote:
> Hello everybody,
> Hello Martin ;),
>
> I am trying to persist an instance of an Ecore model which contains an EClass with an EReference of type EClass
> referring to either the same EClass or another one in the same Ecore model.
>
> Without any special configuration, I get a NullPointerException deep within the Teneo framework:
>
>
> java.lang.NullPointerException
> at org.eclipse.emf.teneo.hibernate.mapper.AbstractAssociationMapper.addManyToOne(AbstractAssociationMapper.java:156)
> at org.eclipse.emf.teneo.hibernate.mapper.ManyToOneMapper.process(ManyToOneMapper.java:108)
> at org.eclipse.emf.teneo.hibernate.mapper.FeatureMapper.processPAnnotatedEReference(FeatureMapper.java:194)
> at org.eclipse.emf.teneo.hibernate.mapper.FeatureMapper.process(FeatureMapper.java:110)
> at org.eclipse.emf.teneo.hibernate.mapper.EntityMapper.processFeature(EntityMapper.java:651)
> at org.eclipse.emf.teneo.hibernate.mapper.EntityMapper.processFeatures(EntityMapper.java:553)
> at org.eclipse.emf.teneo.hibernate.mapper.EntityMapper.processEntity(EntityMapper.java:377)
> at org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.processPAClass(HibernateMappingGenerator.java:238)
> at
> org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.processPersistentClasses(HibernateMappingGenerator.java:158)
>
> at org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.generate(HibernateMappingGenerator.java:118)
> at
> org.eclipse.emf.teneo.hibernate.mapper.HibernateMappingGenerator.generateToString(HibernateMappingGenerator.java:129)
> at org.eclipse.emf.teneo.hibernate.HbDataStore.mapEPackages(HbDataStore.java:1075)
> at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.mapModel(HbEntityDataStore.java:243)
> at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.initialize(HbEntityDataStore.java:118)
> at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.getEntityManagerFactory(HbEntityDataStore.java:333)
> at org.eclipse.emf.teneo.hibernate.HbEntityDataStore.createEntityManager(HbEntityDataStore.java:390)
> at
> de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.getEntityManager(HibernatePersistenceService.java:562)
>
> at
> de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.create(HibernatePersistenceService.java:73)
>
> at
> de.vitasystems.platform.services.persistence.hibernate.test.internal.additional.StoreEClassTest.storeAndQueryEObjectWithEClassAttribute(StoreEClassTest.java:20)
>
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
> at org.eclipse.pde.internal.junit.runtime.RemotePluginTestRunner.main(RemotePluginTestRunner.java:62)
> at org.eclipse.pde.internal.junit.runtime.CoreTestApplication.run(CoreTestApplication.java:23)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
> at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
> at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
>
>
> Searching a bit through the internet and teneo documentation, I found [1] and [2] and tried to set the @External
> annotation at the reference to the EClass:
>
>
> <eStructuralFeatures xsi:type="ecore:EReference" name="eClass" lowerBound="1"
> eType="ecore:EClass http://www.eclipse.org/emf/2002/Ecore#//EClass">
> <eAnnotations source="teneo.jpa">
> <details key="appinfo" value="@External(type="org.eclipse.emf.teneo.hibernate.mapping.EcoreModelElementType")"/>
> </eAnnotations>
> </eStructuralFeatures>
>
>
> At least it fails at another position then, which somehow makes sense to me as the EClass is not mapped of course:
>
>
> java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: EClass is not mapped [SELECT e
> FROM EClass AS e WHERE id = 'null']
> at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1750)
> at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677)
> at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1683)
> at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:331)
> at org.eclipse.emf.teneo.hibernate.HbEntityDataStore$WrappedEntityManager.createQuery(HbEntityDataStore.java:570)
> at
> de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.loadEntityFromDB(HibernatePersistenceService.java:542)
>
> at
> de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.reassignCrossReferencedObjects(HibernatePersistenceService.java:130)
>
> at
> de.vitasystems.platform.services.persistence.hibernate.internal.HibernatePersistenceService.create(HibernatePersistenceService.java:93)
>
> at
> de.vitasystems.platform.services.persistence.hibernate.test.internal.additional.StoreEClassTest.storeAndQueryEObjectWithEClassAttribute(StoreEClassTest.java:20)
>
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
> at org.eclipse.pde.internal.junit.runtime.RemotePluginTestRunner.main(RemotePluginTestRunner.java:62)
> at org.eclipse.pde.internal.junit.runtime.CoreTestApplication.run(CoreTestApplication.java:23)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
> at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
> at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
> Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: EClass is not mapped [SELECT e FROM EClass AS e WHERE id
> = 'null']
> at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:96)
> at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:120)
> at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:234)
> at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:158)
> at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:131)
> at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:93)
> at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:167)
> at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:301)
> at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)
> at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1800)
> at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:328)
> ... 49 more
> Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: EClass is not mapped
> at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:189)
> at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:109)
> at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:95)
> at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:332)
> at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3678)
> at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3567)
> at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:708)
> at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:564)
> at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:301)
> at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:249)
> at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:278)
> at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:206)
> ... 57 more
>
>
> What else do I have to do to make it work? How would I map the EClass or can it be just stored as a string and on
> loading from the DB restored as an EClass reference?
>
> I really appreciate your hints.
>
> Thanks a lot and have a nice weekend.
>
> Regards
> Timo

--

With Regards, Martin Taal

Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@xxxxxxxx - mtaal@xxxxxxxx
Web: www.springsite.com - www.elver.org

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