Re: [eclipselink-users] Object: null is not a known entity type

[ageing student <rsherman315@xxxxxxxxxxx>]

I feel more senile than usual today. I was calling the delete method twice in
a row so of course it failed the second time.

<Hangs head in shame>

Thanks for your prodding that made me look deeper into my code.
Richard


Tim Hollosy wrote:
> 
> I noticed you had CascadeType.ALL set, i wonder if you have a child set as
> null?
> 
> /tim
> 
> On Fri, Jun 13, 2008 at 10:17 AM, ageing student
> <rsherman315@xxxxxxxxxxx> wrote:
>>
>> I've debugged up to the point where the EntityManager.remove is called
>> and
>> the entity is not null at that point. I'm just about to try debugging
>> into
>> the eclipselink code to see if I can work out what's happening. I.E. find
>> what I've done wrong.
>>
>>
>> Tim Hollosy wrote:
>>>
>>> Obvious question that has to be asked, is the entity you're trying to
>>> remove null?
>>>
>>> /tim
>>>
>>> On Fri, Jun 13, 2008 at 10:04 AM, ageing student
>>> <rsherman315@xxxxxxxxxxx> wrote:
>>>>
>>>> When trying to do a remove of an entity (Product detailed below) and
>>>> its
>>>> children I am getting the error.
>>>>
>>>>
>>>> java.lang.IllegalArgumentException: Object: null is not a known entity
>>>> type.
>>>>        at
>>>> org.eclipse.persistence.internal.jpa.EntityManagerImpl.remove(EntityManagerImpl.java:263)
>>>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>>        at
>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>>        at
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>>        at
>>>> org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:194)
>>>>        at $Proxy31.remove(Unknown Source)
>>>>        at
>>>> uk.co.blueskyts.bizservices.product.product.ProductServiceBSImpl.deleteProduct(ProductServiceBSImpl.java:356)
>>>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>>        at
>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>>>        at
>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>>        at
>>>> org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
>>>>        at
>>>> org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
>>>>        at
>>>> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
>>>>        at
>>>> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
>>>>        at
>>>> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
>>>>        at
>>>> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
>>>>        at $Proxy32.deleteProduct(Unknown Source)
>>>>        at BSImplTest.testDeleteProduct(BSImplTest.java:172)
>>>>
>>>> @Entity
>>>> public class Product implements Serializable{
>>>>  @Id
>>>>  @Column(nullable = false)
>>>>  private String id;
>>>>
>>>>  @OneToMany(mappedBy = "product", fetch = FetchType.EAGER,
>>>> cascade={CascadeType.ALL})
>>>>  private List<ProductName> productNameList;
>>>>
>>>>  @OneToMany(mappedBy = "product", fetch = FetchType.EAGER,
>>>> cascade={CascadeType.ALL})
>>>>  private List<ProductData> productDataList;
>>>> }
>>>>
>>>> @Entity
>>>> @IdClass(ProductDataPK.class)
>>>> public class ProductData implements Serializable{
>>>>  @Id
>>>>  @Column(nullable = false)
>>>>  private String id;
>>>>
>>>>  @Id
>>>>  @Column(name="PR_ID", nullable = false, insertable = false, updatable
>>>> =
>>>> false)
>>>>  private String prId;
>>>>
>>>>  @ManyToOne
>>>>  @JoinColumn(name = "PR_ID", referencedColumnName = "ID")
>>>>  private Product product;
>>>> }
>>>>
>>>>
>>>> @Entity
>>>> @IdClass(ProductNamePK.class)
>>>> public class ProductName implements Serializable{
>>>>  @Id
>>>>  @Column(name="DISTBN_TECHNOLOGY_NO", nullable = false)
>>>>  private Integer distbnTechnologyNo;
>>>>
>>>>  @Id
>>>>  @Column(name="LOCALE_NO", nullable = false)
>>>>  private Integer localeNo;
>>>>
>>>>  @Column(nullable = false)
>>>>  private String name;
>>>>
>>>>  @Id
>>>>  @Column(name="PR_ID", nullable = false, insertable = false, updatable
>>>> =
>>>> false)
>>>>  private String prId;
>>>>
>>>>  @ManyToOne
>>>>  @JoinColumn(name = "PR_ID", referencedColumnName = "ID")
>>>>  private Product product;
>>>> }
>>>> --
>>>> View this message in context:
>>>> http://www.nabble.com/Object%3A-null-is-not-a-known-entity-type-tp17824204p17824204.html
>>>> Sent from the EclipseLink - Users mailing list archive at Nabble.com.
>>>>
>>>> _______________________________________________
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>>>>
>>>
>>>
>>>
>>> --
>>> ./tch
>>> _______________________________________________
>>> eclipselink-users mailing list
>>> eclipselink-users@xxxxxxxxxxx
>>> https://dev.eclipse.org/mailman/listinfo/eclipselink-users
>>>
>>>
>>
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>>
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>>
> 
> 
> 
> -- 
> ./tch
> _______________________________________________
> eclipselink-users mailing list
> eclipselink-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/eclipselink-users
> 
> 

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