Re: [eclipselink-users] AttributeGroup, EntityManager.load(...) with Rel

[Andrei Ilitchev <andrei.ilitchev@xxxxxxxxxx>]

This is currently not supported.
Please feel free to log enhancement request.

On 11/11/2012 12:02 PM, sr_dd wrote:
> Hello,
>
> using eclipselink 2.3.3.
>
> i get a Nullpointer in a scenario like this:
> Employee LAZY ManyToManyMapping("projects") Project
> HugeProject inherits from Project (HugeProject defines "evangelist")
> SmallProject inherits from Project (SmallProject defines "atheist")
> HugeProject LAZY OneToOneMapping("evangelist") Employee
> SmallProject LAZY OneToOneMapping("aheist") Employee
>
> // read the Employee
> Employee empRead = em.find(Employee.class, id);
> // create LoadGroup
> LoadGroup lg = new LoadGroup();
> lg.addAttribute("projects.evangelist");
> lg.addAttribute("projects.atheist");
> // load - all SELECT calls executed here
> JpaHelper.getEntityManager(em).load(empRead, lg);
>
> Depending on the conrete Type the element in Projects has there is a
> NullpointerException in AbstractSession Line 4638:
>                   while(it.hasNext()) {
>                         DatabaseMapping mapping =
> builder.getMappingForAttributeName(it.next());
>                         // instantiate indirection
>                         mapping.instantiateAttribute(object, session);
> <--MAPPING is Null
>                     }
>
> This is because there is no atheist in HugeProject and no evangelist in
> SmallProject Entities.
> Another way in creating the LoadGroup for this case?
>
> Best regards
> Stefan
>
>
>
>
>
>
> --
> View this message in context: http://eclipse.1072660.n5.nabble.com/AttributeGroup-EntityManager-load-with-Relations-to-Abstract-Superclass-tp154468p155690.html
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