1.2 has CayenneDataObject.willConnect that is supposed to suck an
object in a DataContext when establishing relationship with another
registered object. So if at least one of the objects is registered,
and an exception is thrown - this is a bug. If no objects are
registered, this is expected.
Andrus
On Sep 9, 2005, at 2:03 PM, Gentry, Michael ((Contractor)) wrote:
> Was B ever in A's DataContext?
>
> -----Original Message-----
> From: Gili [mailto:cowwo..bs.darktech.org]
> Sent: Friday, September 09, 2005 1:56 PM
> To: cayenne-use..bjectstyle.org
> Subject: Reverse relationships and registeration
>
>
> Hi,
>
> I get a NullPointerException under the following situation
>
> A registers with the context
> A.setRelationship(B) // where B is transient
> A.setRelationship(C) // where C is commited
>
> now in the last step, Cayenne tries to undo the reverse
> relationship
> (CayenneDataObject.java line 376 eventually leading to line 461), but
> because B is transient "dataContext" is null and an exception is
> thrown.
>
> I assume a workaround would be to explicitly initialize the
> relationship object, but I just thought I should point this out
> because
> I think Cayenne 1.2 is supposed to handle these sorts of things.
> Should
> I file a JIRA issue for it?
>
> Gili
> --
> http://www.desktopbeautifier.com/
>
>
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