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arobinson74
 Post subject: not-null property references a null or transient value
PostPosted: Fri Apr 28, 2006 11:18 pm 
Beginner
Beginner

Joined: Wed Nov 30, 2005 10:25 pm
Posts: 25
I cannot seem to save a new object with several foreign keys and new child objects and really could use some help here.

Hibernate version: 3.2? (whatever comes with Seam CVS)

Annotations:

I have several related (FK) classes:
Conference
BreakoutSession
Registration
BreakoutSessionRegistration
User

1-many relationships:
Conference -> BreakoutSession
Conference -> Registration
User -> Registration
Registration -> BreakoutSessionRegistration
BreakoutSession -> BreakoutSessionRegistration

I have mapped them all using fields and annotations.

Conference:
Code:
@Entity
@SequenceGenerator(name="seq", sequenceName="conference_seq")
public class Conference {
...
   @OnDelete(action=OnDeleteAction.CASCADE)
   @OneToMany(mappedBy="conference")
   @Cascade({CascadeType.ALL, CascadeType.DELETE_ORPHAN})
   private List<BreakoutSession> breakoutSessions =
      new ArrayList<BreakoutSession>();
   
   @OnDelete(action=OnDeleteAction.CASCADE)
   @OneToMany(mappedBy="conference")
   @Cascade({CascadeType.ALL, CascadeType.DELETE_ORPHAN})
   private List<Registration> registrations =
      new ArrayList<Registration>();
...


BreakoutSession:
Code:
@Entity
@AccessType("field")
@Table(name="conf_breakout_session")
@SequenceGenerator(name="seq", sequenceName="conf_breakout_session_seq")
public class BreakoutSession {
...
   @ManyToOne(optional=false,cascade=PERSIST)
   @NotNull
   @JoinColumn(name="conf_id")
   private Conference conference;
   
   @OneToMany(mappedBy="session")
   @Cascade({CascadeType.ALL, CascadeType.DELETE_ORPHAN})
   @OnDelete(action=OnDeleteAction.CASCADE)
   private List<BreakoutSessionRegistration> registrations =
      new ArrayList<BreakoutSessionRegistration>();
...


Registration:
Code:
@AccessType("field")
@Entity
@Table(name="conf_registration")
@SequenceGenerator(name="seq", sequenceName="conf_registration_seq")
public class Registration {
...
   @NotNull
   @JoinColumn(name="user_id")
   @ManyToOne(optional=false)
   private User user;
   
   @NotNull
   @JoinColumn(name="conf_id")
   @ManyToOne(optional=false,cascade=PERSIST)
   private Conference conference;
   
   @OneToMany(mappedBy="registration")
   @OnDelete(action=OnDeleteAction.CASCADE)
   @Cascade({CascadeType.ALL, CascadeType.DELETE_ORPHAN})
   @Valid
   private List<BreakoutSessionRegistration> breakoutRegistrations =
      new ArrayList<BreakoutSessionRegistration>();


User:
Code:
@AccessType("field")

@Entity

@Table(name="site_user")

@Name("user")

@Scope(ScopeType.SESSION)

@SequenceGenerator(name="seq", sequenceName="site_user_seq")

public class User {

...


BreakoutSessionRegistration:
Code:
@AccessType("field")
@Entity
@Table(name="conf_breakout_user_reg")
@SequenceGenerator(name="seq", sequenceName="conf_breakout_user_reg_seq")
public class BreakoutSessionRegistration {
...
   
   @NotNull
   @JoinColumn(name="reg_id")
   @ManyToOne(optional=false,cascade=CascadeType.PERSIST)
   private Registration registration;
   
   @NotNull
   @JoinColumn(name="breakout_id")
   @ManyToOne(optional=false,cascade=CascadeType.PERSIST)
   private BreakoutSession session;


Business code:
Code:
if (this.registration.getId() == null)
   entityManager.persist(this.registration);
entityManager.flush();


Full stack trace of any exception that occurs:
Code:
org.hibernate.PropertyValueException: not-null property references a null or transient value: org.bethanyefree.data.conference.BreakoutSessionRegistration.registration
        at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72)
        at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:264)
        at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:166)
        at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:113)
        at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:131)
        at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:87)
        at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:608)
        at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:600)
        at org.hibernate.engine.CascadingAction$8.cascade(CascadingAction.java:202)
        at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:213)
        at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:157)
        at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
        at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:290)
        at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:185)
        at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:160)
        at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
        at org.hibernate.engine.Cascade.cascade(Cascade.java:248)
        at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:409)
        at org.hibernate.event.def.DefaultPersistEventListener.entityIsPersistent(DefaultPersistEventListener.java:111)
        at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:84)
        at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:608)
        at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:600)
        at org.hibernate.engine.CascadingAction$8.cascade(CascadingAction.java:202)
        at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:213)
        at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:157)
        at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
        at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:290)
        at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:185)
        at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:160)
        at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
        at org.hibernate.engine.Cascade.cascade(Cascade.java:248)
        at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:409)
        at org.hibernate.event.def.DefaultPersistEventListener.entityIsPersistent(DefaultPersistEventListener.java:111)
        at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:84)
        at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:608)
        at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:600)
        at org.hibernate.engine.CascadingAction$8.cascade(CascadingAction.java:202)
        at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:213)
        at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:157)
        at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
        at org.hibernate.engine.Cascade.cascade(Cascade.java:248)
        at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:384)
        at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:241)
        at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:166)
        at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:113)
        at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:131)
        at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:87)
        at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38)
        at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:617)
        at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:591)
        at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:595)
        at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:147)
        at org.bethanyefree.beans.conference.ConferenceRegistrationAction.save(ConferenceRegistrationAction.java:188)
        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:585)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
        at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:168)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
        at org.jboss.seam.interceptors.ValidationInterceptor.validateTargetComponent(ValidationInterceptor.java:45)
        at sun.reflect.GeneratedMethodAccessor68.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
        at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:87)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
        at org.jboss.seam.interceptors.OutcomeInterceptor.interceptOutcome(OutcomeInterceptor.java:21)
        at sun.reflect.GeneratedMethodAccessor67.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
        at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:87)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
        at org.jboss.seam.interceptors.RollbackInterceptor.rollbackIfNecessary(RollbackInterceptor.java:30)
        at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
        at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:87)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
        at org.jboss.seam.interceptors.BijectionInterceptor.bijectTargetComponent(BijectionInterceptor.java:33)
        at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
        at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:87)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
        at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:68)
        at sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
        at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:87)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
        at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:60)
        at sun.reflect.GeneratedMethodAccessor62.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
        at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:87)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
        at org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:39)
        at sun.reflect.GeneratedMethodAccessor61.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.seam.util.Reflections.invoke(Reflections.java:13)
        at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:87)
        at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
        at org.jboss.seam.ejb.SeamInterceptor.aroundInvokeInContexts(SeamInterceptor.java:73)
        at org.jboss.seam.ejb.SeamInterceptor.aroundInvoke(SeamInterceptor.java:45)
        at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:120)
        at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:62)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
        at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:196)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:81)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:199)
        at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98)
        at $Proxy69.save(Unknown Source)
        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:585)
        at com.sun.el.parser.AstValue.invoke(AstValue.java:130)
        at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
        at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
        at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
        at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
        at javax.faces.component.UICommand.broadcast(UICommand.java:106)
        at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)
        at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:168)
        at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:330)
        at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:84)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:23)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
        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.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:419)
        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.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
        at java.lang.Thread.run(Thread.java:595)

Name and version of the database you are using: Postgresql 8.1

The generated SQL (show_sql=true): Never got that far (died after getting a sequence value)
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arobinson74
 Post subject:
PostPosted: Fri Apr 28, 2006 11:37 pm 
Beginner
Beginner

Joined: Wed Nov 30, 2005 10:25 pm
Posts: 25
Here is more verbose code for the business side to make it clearer what I am doing:

Code:
      this.registration = new Registration();
      this.registration.setConference(conference);
      this.conference.getRegistrations().add(registration);
      for (BreakoutSession bs : this.conference.getBreakoutSessions())
      {
         BreakoutSessionRegistration bsr = new BreakoutSessionRegistration();
         bsr.setRegistration(registration);
         bsr.setSession(bs);
         bsr.setNumberOfAttendees((short)0);
         registration.getBreakoutRegistrations().add(bsr);
         bs.getRegistrations().add(bsr);
      }
      
      this.registration.setOrganization("asdf");
      this.registration.setPhoneNumber("1231231234");
      this.registration.setAddress("asdf");
      this.registration.setNumberOfAttendees((short)1);
      for (BreakoutSessionRegistration bsr : this.registration.getBreakoutRegistrations())
      {
         if (bsr.getStartTime().getHours() == 9)
            bsr.setNumberOfAttendees((short)1);
      }
      this.entityManager.persist(registration);
      this.entityManager.flush();
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arobinson74
 Post subject: Workaround found
PostPosted: Sat Apr 29, 2006 6:40 pm 
Beginner
Beginner

Joined: Wed Nov 30, 2005 10:25 pm
Posts: 25
Okay, I found a workaround, but it isn't working the way I think it should.

I removed one of the @OneToMany collections since it wasn't as neccessary. In the BreakoutSession I had a list of BreakoutSessionRegistration objects. Somehow the cascade was failing with the BreakoutSessionRegistration being a child of two collections. So now, only Registration has the collection of registrations. If I need breakout session registrations for a session, I'll just use EBQL to get them.

Another quirk I found is that merge fails of a new registration! According to the documentation (I think), I should be able to interchange persist(Object) and merge(Object) (merge should act like saveOrUpdate from the Hibernate world). When I tried to merge the object, I got a Unique constraint violation because the entity manager was trying to insert my registration object more than once!

If someone can figure out if this is a bug or if I did something wrong, let me know as I would like to keep the foreign key mapped as a bi-directional collection instead of just uni-directional.
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