Interface Method

Hi experts,

I have the following scenario:

Component A opens, in a modal window, the component B.

When I do something in B, it's closed and I return to A.

There, I need read data from B (which is closed at the moment), to do something in A.

Anybody knows how can I do it?

I tried with external context mapping, but It doesn't work...

Could it be done with interface methods?

Thanks in advance!

Lucas