An AssertionFailure occured

listopad · **Joined:** Mon Jan 12, 2004 7:05 am **Posts:** 16

I get the following exeception when i execute my programm.

Code:

Hibernate: update PERSON set forename=?, surname=? where PERSON_ID=? 
10:25:49,776  INFO DriverManagerConnectionProvider:137 - cleaning up connection pool: jdbc:mysql://localhost/xytest 
10:25:50,017 ERROR AssertionFailure:20 - An AssertionFailure occured - this may indicate a bug in Hibernate 
net.sf.hibernate.AssertionFailure: bug processing queued adds 
   at net.sf.hibernate.impl.ScheduledCollectionUpdate.execute(ScheduledCollectionUpdate.java:36) 
   at net.sf.hibernate.impl.SessionImpl.executeAll(SessionImpl.java:2303) 
   at net.sf.hibernate.impl.SessionImpl.execute(SessionImpl.java:2259) 
   at net.sf.hibernate.impl.SessionImpl.flush(SessionImpl.java:2182) 
   at net.sf.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:61) 
   at aspectwrap.service.HibernateDatabaseAccessAspect.doPersistenceAction(HibernateDatabaseAccessAspect.java:214) 
   at aspectwrap.service.HibernateDatabaseAccessAspect.ajc$after$aspectwrap_service_HibernateDatabaseAccessAspect$3$4ed52f8a(HibernateDatabaseAccessAspect.java:68) 
   at aspectwrap.handler.proxy.CollectionInterceptor.intercept(CollectionInterceptor.java:90) 
   at net.sf.hibernate.collection.List$$EnhancerByCGLIB$$79e904a0.add(<generated>) 
   at test.ComponentTest.test(ComponentTest.java:31) 
   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:324) 
   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.RemoteTestRunner.runTests(RemoteTestRunner.java:410) 
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:294) 
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:182) 
 

I tried to generate a collection proxy for the hibernate collection object, e.g. a person has a list of addresses, and a proxy object with superclass hibernate collection will be generated in my code, and when i save the person in the session and commit it, i got this AssertionFailure. Has anybody an idea, why it happens? i have posted it already at the Hibernate Beginner forum, unfortunately i got no help. i hope, someone here can help me.

Thanks

Xiaoying

michael · **Posted:** Sun May 30, 2004 6:26 am

Messing around with Hibernates internal collections is surely not supported. Why are you doing such things?

listopad · **Joined:** Mon Jan 12, 2004 7:05 am **Posts:** 16

I do it for my master thesis "aspect oriented persistent layer". i try to make the persistent layer transparent to the programmer through using the aspects to make the persistent jobs with help of hibernate.

e.g

Code:

class Person extends PersistentRoot{
....

Code:

Person p = new Person();
p.setAddresses(new ArrayList());
p.getAddresses().add(new Address());

This programmer need only to declare the person class as a persistent class. And then he doesn't need to worry about making the person object persistent. The aspects should pick out the points, when a persistent object is instantiated, changed or deleted, and make the appropriate database update. As you can seen, in the above code, the persistent object should also be updated, when something in the collection changed. I use here a proxy object for collection, this proxy object is responsible for update of the persistent object after the changing on the collection.

emmanuel · **Posted:** Tue Jun 01, 2004 3:17 am

Reread the reference guide.
Hibernade does that for you one an object is attached to the session.
And you can cascade save or update using the cascade=all style.

listopad · **Joined:** Mon Jan 12, 2004 7:05 am **Posts:** 16

Thanks a lot.

I will try it.