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Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 2 posts ] 
Author Message
 Post subject: Exception beim Klonen eines Objektes
PostPosted: Fri Dec 15, 2006 3:49 pm 
Newbie

Joined: Thu Aug 10, 2006 7:43 am
Posts: 14
Hallo.

In meiner Spring-Applikation möchte ich gerne ein persistentes Objekt namens NiProject (welches weitere Objekte als Member hat) klonen.

Ich habe soweit die hbm.xml files angepasst, dass die Java-Klassen (Model) copy-Konstruktoren haben und das scheint soweit ganz gut zu gehen.
wenn ich aber dann aufrufe


Code:
getHibernateTemplate().saveOrUpdate(niProject);
, dann bekomme ich die folgende Exception:

Code:
2006-12-15 20:25:19,253 ERROR [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/NIApp].[NIApp]] - <Servlet.service() for servlet NIApp threw exception>
org.springframework.dao.InvalidDataAccessApiUsageException: com.siemens.niapp.model.Employee; nested exception is org.hibernate.TransientObjectException: com.siemens.niapp.model.Employee
org.hibernate.TransientObjectException: com.siemens.niapp.model.Employee
   at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
   at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108)
   at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221)
   at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476)
   at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2803)
   at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:467)
   at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:190)
   at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113)
   at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
   at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
   at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
   at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:985)
   at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:333)
   at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:584)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:500)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:473)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.doCommitTransactionAfterReturning(TransactionAspectSupport.java:267)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
   at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:623)
   at com.siemens.niapp.manager.NiManager$$EnhancerByCGLIB$$9ad54d5f.copyProject(<generated>)
   at com.siemens.niapp.controller.createproject.CreateProjectCopyController.onSubmit(CreateProjectCopyController.java:67)
   at org.springframework.web.servlet.mvc.SimpleFormController.processFormSubmission(SimpleFormController.java:258)
   at org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:249)
   at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
   at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44)
   at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:723)
   at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:663)
   at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:394)
   at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:358)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
   at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174)
   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
   at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
   at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
   at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
   at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
   at java.lang.Thread.run(Thread.java:595)



Ihr werdet schon bemerkt haben, dass ich mit Hibernate noch nicht so viel in Berührung gekommen bin (weshalb ich ja auch gleich diese Exception ins Gesicht geklatscht bekam). Deshalb wäre ich für eine Lösung sehr dankbar.

Vielen Dank und schon mal einen schönen dritten Advent 2006!

Dirk


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 Post subject:
PostPosted: Fri Dec 15, 2006 5:53 pm 
Expert
Expert

Joined: Tue Nov 23, 2004 7:00 pm
Posts: 570
Location: mostly Frankfurt Germany
Die Fehlermeldung sagt aus, dass Du eine Klasse (vermutlich Projekt) versucht zu speichern und Projekt eine Beziehung zu einer anderen Klasse hat, die aber nicht gespeichert ist (Employee).

Du könntest entweder
a)
cascade beim Projekt konfigurieren
b)
employee vorher speichern

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Sebastian
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