With a graph everything is easier. You could use Frames to accomplish your
goal: https://github.com/tinkerpop/frames/wiki

Lvc@


On 16 October 2014 11:48, Pavel Niedoba <[email protected]> wrote:

> After a lot of try/fails (real examples with db data would be much
> appreciated) i got right results with
>
> select from parent let $ch = (select from child where
> parent=$parent.current) where $ch.size()=0
>
> it is slow, but I expect that (there is index on child.parent)
>
> I know it could be much faster if I introduce bi directional link
>
> class Parent {
>   String id;
>   Set<child> children;
> }
>
> but that's exactly what I want to avoid. GraphDatabase solves it nicely,
> but it lacks pojo to schema mapping. Is there a way to use edges with
> ObjectDatabase ?
>
>
>
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