On Sun, Oct 21, 2018 at 6:29 AM Keisuke Miyako via 4D_Tech <
4d_tech@lists.4d.com> wrote:
>
> the best way to share an object or collection between processes is to
pass a shared object or shared collection as a parameter.
> there is no need to use Storage, there is no need to use interprocess
variables.
> you just create a shared object or shared collection, and pass it as an
argument to another process or worker.
> the received object is not a copy, it is a shared reference to the same
shared object.
>
Keisuke,
is there a way how to convert non-shared collection to shared? Some
commands return normal collection, like
selection.toCollection("ID") or collection:=selection.ID
and I want to pass the collection to other process without duplication, but
have not found a way how to convert normal selection to shared one.
Tried
collection:=New shared collection
collection:=selection.ID
but it seems collection was reverted to normal one. When I tried
Use (Storage)
Storage.collection:=New shared collection
Storage.collection:=$settings.ID
End use
I got a runtime error. Even
Use (Storage)
Storage.collection:=New shared collection
Storage.collection:=$collection.copy()
End use
is not possible, although this is what I want to avoid.
Best would be to have shared entity selection - like interprocess named
selections - which would then generate shared collections.
--
Peter Bozek
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