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Re: [eclipselink-dev] Bug 241765 - JPA 2.0 Derived identities 
Hi Gordon,
  I downloded from [1]. Thinking that is the latest. The website mentions
that the bundle is at revision 
eclipselink-2.0.0.v20091127-r5931. But once you mentioned that I may be
using an old version, I notice that the error messages print a different
version number such as
   Exception [EclipseLink-30005] (Eclipse Persistence Services -
1.1.0.r3634): ....

  It is unlikely (but not impossible) that it is a build/run environmental
mistake -- I am double0checking that.

  Questions:
  1. Can you please confirm where I can downlod the latest EclipeLink
libraries? 
  2. Is there an utility that prints out the revision numbr of the library?
Or any other suggested mechanism to verify the download is at a specific
revision?  
 
  Thanks --

[1]
http://www.eclipse.org/downloads/download.php?file=/rt/eclipselink/releases/2.0.0/eclipselink-2.0.0.v20091127-r5931.zip 



Gordon Yorke wrote:
> 
> Hello Pinaki,
>    The version of EclipseLink you are using is very old and is not JPA 2.0
> compatible.  You will need to upgrade to EclipseLink 2.0
> --Gordon
> 
> 
> Pinaki Poddar wrote:
>> 
>> Hi,
>>   While the error message is fairly clear why it thinks the mapping
>> definitions are wrong, here is the JPA 2.0 spec (sec 2.4.1.1:
>> Specification of Derived Identities)
>> "If the dependent entity uses an id class to represent its primary key,
>> one of the two following rules must
>> be observed:"
>>   // lines ommitted
>>   "If an Id attribute in the entity is a many-to-one or one-to-one
>> relationship to a parent
>> entity, the corresponding attribute in the id class must be of the same
>> Java type as the
>> id class or embedded id of the parent entity (if the parent entity has a
>> composite primary
>> key) or the type of the Id attribute of the parent entity (if the parent
>> entity has a
>> simple primary key)."
>> 
>> 
>>   My reading is LineItem (child) having a @Id @ManyToOne PurchaseOrder
>> and LineItem using @IdClass(LineItemId.class) fit into the above spec
>> scenario. 
>> 
>>   Regards --
>> 
>> Pinaki
>>  
>> 
>> Pinaki Poddar wrote:
>>> 
>>> Hi,
>>>   A typical Order-LineItem definition where LineItem uses compound,
>>> derived identity.
>>> Is this mapping supported in 1.1.0.r3634 or any later available
>>> versions?
>>> 
>>>   The mapping fails with following error message (detailed stack trace
>>> at the end)
>>> 
>>>      [java] Caused by: Exception [EclipseLink-7149] (Eclipse Persistence
>>> Services - 1.1.0.r3634):
>>> org.eclipse.persistence.exceptions.ValidationException
>>>      [java] Exception Description: The composite primary key attribute
>>> [order] of type [class domain.PurchaseOrder] on entity class [class
>>> domain.LineItem] should be of the same type as defined on its primary
>>> key class [domain.LineItemId]. That is, it should be of type [long].   
>>> 
>>>   
>>> Here are the entity definitions:
>>>  
>>>   A "parent" entity with a simple identity of a long field 
>>> -------------------------------------------------------------
>>> @Entity
>>> public class PurchaseOrder implements Serializable {
>>>     @Id
>>>     private long id;
>>> }
>>> -------------------------------------------------------------
>>>  A "child" entity that 
>>>    -- uses a separate Id class
>>>    -- uses a compound identity
>>>    -- derives part of its identity from "parent"
>>> -------------------------------------------------------------               
>>>   @Entity
>>>   @IdClass(LineItemId.class)
>>>   public class LineItem implements Serializable {
>>>     @Id
>>>     @ManyToOne
>>>     private PurchaseOrder order; // field name must match the field name
>>> in LineItem.LineItemId
>>>     
>>>     @Id
>>>     @OrderColumn
>>>     @Column(name="IDX") // index is keyword
>>>     private int index;  // field name must match the field name in
>>> LineItem.LineItemId
>>> ---------------------------------------------------------------
>>>    And the separate Id class
>>> ---------------------------------------------------------------
>>> public class LineItemId implements Serializable {
>>>     long order;  
>>>     int index; 
>>> 
>>> The runtime fails with the following error:
>>> 
>>> 
>>>      [java] Caused by: Exception [EclipseLink-7149] (Eclipse Persistence
>>> Services - 1.1.0.r3634):
>>> org.eclipse.persistence.exceptions.ValidationException
>>>      [java] Exception Description: The composite primary key attribute
>>> [order] of type [class domain.PurchaseOrder] on entity class [class
>>> domain.LineItem] should be of the same type as defined on its primary
>>> key class [domain.LineItemId]. That is, it should be of type [long].
>>>      [java]     at
>>> org.eclipse.persistence.exceptions.ValidationException.invalidCompositePKAttribute(ValidationException.java:1082)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor.validatePKClassId(MetadataDescriptor.java:1438)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.IdAccessor.process(IdAccessor.java:65)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor.processAccessors(MetadataDescriptor.java:1082)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.processAccessorsClassAccessor.java:636)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.processAccessors(EntityAccessor.java:611)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:530)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:446)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:303)
>>>      [java]     at
>>> org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:838)
>>> 
>>> 
>>>   
>>>    
>>> 
>>> 
>>> 
>>> christopher delahunt wrote:
>>>> 
>>>> Bug 241765 - JPA 2.0 Derived identities
>>>> Checked into main.
>>>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=241765
>>>> reviewed by Gordon and Guy
>>>> _______________________________________________
>>>> eclipselink-dev mailing list
>>>> eclipselink-dev@xxxxxxxxxxx
>>>> https://dev.eclipse.org/mailman/listinfo/eclipselink-dev
>>>> 
>>>> 
>>> 
>>> 
>> 
>> 
> 
> 

-- 
View this message in context: http://old.nabble.com/Bug-241765---JPA-2.0-Derived-identities-tp21810451p27409519.html
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