[storm] beginner's question...

[Massimo]

Massimo ha scritto:
> Hi everybody,
> I'm new to storm, I find it's very interesting, and I'm playing with the 
> tutorial to improve my knowledge.
> 
> I would need a better understanding of the ReferenceSet with composed 
> primary key.
[...]
> Thanks in advance for the help,
> Massimo.

I just made a little confusion!

I can answer by myself, composite primary keys reference are obtained 
using tuples instad of signle values (as explained into Tutorial!!!). 
Simple, powerful and elegant!

The n:n Tutorial example is clear enough, I just read it too quickly!

Sorry for bothering,
Massimo.