[hibernate-issues] [Hibernate-JIRA] Created: (HHH-1988) Repeated column chack fails with SingleTable inheritance, biut not with TablePerClass

[Sergey Vladimirov (JIRA)]

Repeated column chack fails with SingleTable inheritance, biut not with TablePerClass
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         Key: HHH-1988
         URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1988
     Project: Hibernate3
        Type: Bug

  Components: metamodel  
    Versions: 3.2.0.cr3    
 Environment: HA last from SVN, HEM last from SVN, MySQL
    Reporter: Sergey Vladimirov


Not sure about component.

Parent class introduce field, which is also discriminator field.
Hibernate reports error in child class if and only if strategy = InheritanceType.SINGLE_TABLE

org.hibernate.MappingException: Repeated column in mapping for entity: ru.arptek.arpsite.data.discriminator.IntegerSingleChild column: type (should be mapped with insert="false" update="false")
	at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:590)
	at org.hibernate.mapping.PersistentClass.checkPropertyColumnDuplication(PersistentClass.java:612)
	at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:630)
	at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:405)
	at org.hibernate.mapping.SingleTableSubclass.validate(SingleTableSubclass.java:43)
	at org.hibernate.cfg.Configuration.validate(Configuration.java:1026)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1211)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:631)
	at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:760)
	at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configuration.java:627)
	at ru.arptek.arpsite.data.AbstractHibernateJUnitTest.setUp(AbstractHibernateJUnitTest.java:89)
	at junit.framework.TestCase.runBare(TestCase.java:125)
	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 org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

Test cas works with strategy = InheritanceType.TABLE_PER_CLASS

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