Was a solution found?
The issue is that hibernate is trying to update the lookup table (user)
instead of updating the entity table's (owner) foreign key to the lookup
table.
What is the correct cascade to use in the ManyToOne annotation of the Owner
model and the OneToMany annonation of the User model for this O/R mapping
situation?
sarat.pediredla wrote:
>
> The problem is simple,
>
> I have an object called Task which has a property called owner that is
> mapped as follows,
>
>
> @ManyToOne(cascade={CascadeType.PERSIST,CascadeType.REFRESH,CascadeType.MERGE})
> @Cascade({org.hibernate.annotations.CascadeType.SAVE_UPDATE,
> org.hibernate.annotations.CascadeType.MERGE,
> org.hibernate.annotations.CascadeType.PERSIST})
> public User getOwner() {
> return owner;
> }
>
> I have a JSP page in my Struts 2 appfuse app as follows,
>
> <s:textfield name="name" label="name" theme="xhtml"/>
> <s:select key="owner.id" list="users" listKey="id"
> listValue="fullName" multiple="false" size="1"
> theme="xhtml"/>
>
>
> When I post this, everything is wired up ok until I call
> TaskManager.save(task) in my Action when I get the following error,
>
> Stacktraces
> org.springframework.orm.hibernate3.HibernateSystemException: identifier of
> an instance of org.appfuse.model.model.User was altered from 2 to 11;
> nested exception is org.hibernate.HibernateException: identifier of an
> instance of org.appfuse.model.User was altered from 2 to 11
> org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:659)
> org.springframework.orm.hibernate3.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:690)
> org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:566)
> org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:662)
> org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:632)
> org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:319)
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:116)
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
> org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> $Proxy70.save(Unknown Source)
>
>
> Surely given that I have configured cascading for the persistence
> correctly, should the owner object not be refreshed dynamically instead of
> trying to overwrite the id of the existing object?
>
> What is the best way around this short of me having to use a temp var like
> frmOwner and assigned task.setOwner which is not really an option as I
> want to pursue a REST architecture.
>
>
>
--
View this message in context:
http://www.nabble.com/Updating-a-related-entity-in-Struts-2-throws-HibernateException-tp15923014s2369p17258605.html
Sent from the AppFuse - User mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
