org.hibernate.TransientObjectException: object references an unsaved transient instance – save the transient instance before flushing:
org.hibernate.TransientObjectException: object references an unsaved transient instance – save the transient instance before flushing:This is the problemTable A was referring to the talbe B using a foreign key
hbm.xml for A looked like this
<class name=”com.xxx.A” table=”A” schema=”TESTSCHEMA”>
<id name=”aId” type=”java.lang.Long”>
<column name=”A_ID” precision=”29″ scale=”0″ />
</id>…………………..
some more mapping elements
…………………..
…………………..
<many-to-one name=”bId” class=”com.xxx.B” fetch=”select”>
<column name=”B_ID” precision=”29″ scale=”0″ />
</many-to-one>
…………………..
I just want to save A with some new value and A will refer to B using some foreign key. But in my transaction I am not going to change B and save the changes. Therefore the many-to-one mapping above is wrong. It does not tell hibernate that class b is immutant. That is it is not going to change. Hibernate thinks that the referred table is not saved therefore it complains and says
org.hibernate.TransientObjectException: object references an unsaved transient instance – save the transient instance before flushing:
Please note that in this case B is transient object. If you don’t really want to save the value of B(transient object) in A , then to get rid of this problem change the many-to-one mapping as
update=”false” insert=”false” fetch=”select”>
But if you want to save the value of B then see my other post
That is, tell hibernate that you are not going to change the values of B, you are just fetching it.
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Hello. Thanks for visiting my blog. I am Paras Jain. I am a Riveter – team member of Rivet Logic Corporation in Reston, Virginia, USA. I am working as Senior Software Engineer. Currently most of my work involves implementing solutions involving Liferay and Alfresco. I have experience in Grails, Spring, Struts, Hibernate, JSF, JBoss Seam and many others. I am also technical owner of few websites developed in WordPress, Drupal and Prestashop. I am a Sun Certified Java Professional. You can reach me at my email id http://scr.im/parasjain01 or http://scr.im/parasjain
Hi man you made my day ….
Thanks
Excellent post. Keep up the good work.
Hi,
Thank you very much, you solved my problem
Have a nice day,
Khalid
Thanks for sharing, one quick clarification. I was not able to insert the data for mapped columns when flags are set to false. But when I set flags to true, everything works well.
Hi Sathish,
Yes when you set the flag to true Hibernate will do the inserts for those mapped columns. setting fields to false tells the hibernate that this fields are read only and hibernate should not update them.
Thanks..
There is obviously a lot to know about this. There are some good points here.
I’m Out!
Hey, you save me a long long day tonight..
Really thanks to you.
Thank u very much boss…
I wastred 1 hr for this idiotic bug… thaks a lot
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thank you for the idea
by the way. If youre using annotations i.e. with seam. You have to set these attributes in @JoinColumn.
so
@ManyToOne
private User user;
becomes
@ManyToOne
@JoinColumn(updatable=false, insertable=false)
private User user;
have a nice day
I am having the same scenario…
But for one to many relationship.
Bag tag is not supporting update=”false” insert=”false”
Any other way?
Thank you, this remark seve me a lot of time
Thanks a lot
Thanks a lot. your the man..:-)
Really it helps me lot..
i have same issue but didnot solve kindly help me
this is exception
org.hibernate.TransientObjectException: object references an unsaved transient instance – save the transient instance before flushing: com.hrms.persistanceLayer.HrAddress
at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:243)
at org.hibernate.type.EntityType.getIdentifier(EntityType.java:456)
at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:265)
at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:275)
at org.hibernate.type.TypeHelper.findDirty(TypeHelper.java:295)
at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:3403)
at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:520)
at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:230)
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:154)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:133)
at com.hrms.modelLayer.BaseDAO.save(BaseDAO.java:101)
at com.hrms.controllerLayer.ServiceProvider.savePersonalInfoNormalUser(ServiceProvider.java:99)
at com.hrms.beans.PersonalInfoBean.saveHrPersonnalBasicInfo(PersonalInfoBean.java:1176)
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 org.apache.el.parser.AstValue.invoke(AstValue.java:262)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIData.broadcast(UIData.java:912)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Hi Waqas,
I am afraid that without looking at your configuration files it would be difficult to provide any comments. Your best friend now will be google. I am not as deeply involved in Hibernate right now as I was at the time I wrote the post. So I might not have up-to-date info on that.
Thanks for reading my post and taking time to comment.
Regards,
Paras