Thanks for both suggestions. datanucleus is including the parent as
an object in each child:
> So do a JDOQL query for the elements
> pm.newQuery("SELECT FROM MyElement WHERE myParent == :parent");
> and pass in the parent object, and add on any other filter
> requirements.
That sounds to me lik
Even though Datanucleus' method seems better, I thought I'd list how I
would have done it. If anyone thinks that there would be problems
doing it my way, please let us all know.
Store a unique property of the parent (this would usually be the
PrimaryKey of the parent) in a data field of the child
> Thanks a lot for the thoughts Hani, but I do only want the children,
So do a JDOQL query for the elements
pm.newQuery("SELECT FROM MyElement WHERE myParent == :parent");
and pass in the parent object, and add on any other filter
requirements.
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Thanks a lot for the thoughts Hani, but I do only want the children,
so unfortunately, that doesn't solve my problem. The parent is going
to be an entity for each user. So for a given user, I'll want to get
all the children of the user entity that also meet other filter
requirements.
Anyone have
I am also new to JDO :) but this is what I am doing currently:
By setting @Persistent(defaultFetchGroup = "true") on the child/
children loading the parent will automatically load all children ...
Does this help? Or do you need to get children only without their
parent ?
See =>
http://code.google.