[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3046) Merge fails on complicated data structure because of cycle references
Wallace Wadge (JIRA)
noreply at atlassian.com
Fri Jul 4 04:22:39 EDT 2008
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_30576 ]
Wallace Wadge commented on HHH-3046:
------------------------------------
Pavol,
As I mentioned, this works for normal tables, however I found that the problem is still present when you have a composite key with one of the keys being a Foreign key to another table as in the following schema:
CREATE TABLE `jira`.`composite` (
`composite_id` int(10) unsigned NOT NULL default '0',
`otherTable_id` int(10) unsigned NOT NULL,
`someOtherField` varchar(45) NOT NULL,
PRIMARY KEY (`composite_id`,`otherTable_id`),
KEY `FK_composite_1` (`otherTable_id`),
CONSTRAINT `FK_composite_1` FOREIGN KEY (`otherTable_id`) REFERENCES `othertable` (`otherTable_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
DROP TABLE IF EXISTS `jira`.`otherTable`;
CREATE TABLE `jira`.`otherTable` (
`otherTable_id` int(10) unsigned NOT NULL default '0',
`randomField` varchar(45) NOT NULL,
PRIMARY KEY (`otherTable_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
Not sure if this is related to this same issue or if it falls under a new issue.
> Merge fails on complicated data structure because of cycle references
> ---------------------------------------------------------------------
>
> Key: HHH-3046
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3046
> Project: Hibernate3
> Issue Type: Bug
> Affects Versions: 3.2.4
> Environment: Hibernate-3.2.4.ga, db-platform any (h2 & oracle tested)
> Reporter: Pavol Zibrita
> Attachments: HHH3046Fix_Branch_3_2.patch, HHH3046Fix_entityManager_Branch_3_2.patch, HHH3046Test_entityManager_Branch_3_2.patch, HHH3046TestCase_Branch_3_2.patch, HibernateBug_HHH3046.zip
>
>
> On complicated object structure, hibernate was unable to merge it correctly because of attaching ID's to the new objects in the tree of the persistent entity. Hibernate cannot cope with cyclic references in this case and it fails with:
> javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: org.hibernate.bugtests.data.Transport.pickupNode
> at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:630)
> at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:237)
> at org.hibernate.bugtests.merge.MergeBug.mergeData(MergeBug.java:131)
> at org.hibernate.bugtests.merge.MergeBug.testBug(MergeBug.java:149)
> 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:597)
> 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 org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
> 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)
> Caused by: org.hibernate.PropertyValueException: not-null property references a null or transient value: org.hibernate.bugtests.data.Transport.pickupNode
> at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72)
> at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:290)
> at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:181)
> at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:121)
> at org.hibernate.ejb.event.EJB3MergeEventListener.saveWithGeneratedId(EJB3MergeEventListener.java:43)
> at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:186)
> at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
> at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
> at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
> at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:456)
> at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:194)
> at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
> at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
> at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
> at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:456)
> at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:194)
> at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:431)
> at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:178)
> at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
> at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
> at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
> at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> at org.hibernate.event.def.DefaultMergeEventListener.cascadeOnMerge(DefaultMergeEventListener.java:407)
> at org.hibernate.event.def.DefaultMergeEventListener.entityIsPersistent(DefaultMergeEventListener.java:152)
> at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:126)
> at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:53)
> at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:677)
> at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:661)
> at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:665)
> at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:228)
> ... 20 more
> However the value is set correctly.
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