On Sat, May 23, 2015 at 1:37 PM, Adam Warski <[email protected]> wrote:
> Hello,
>
> I've been writing some simple code using FlexiMerge/FlexiRoute, and I'm
> wondering why both have a single required "OperationAttributes" parameter?
> Maybe there should be a * at the end to allow 0-* such parameters?
>
You can combine attributes with the "and" combinator if you want to attach
more than one.
> For lack of a better value, I'm currently using OperationAttributes.name,
> but that makes the code a bit noisy, as I already have to name the shape,
> e.g.:
>
> class SplitRoute[T](splitFn: T => Either[T, T]) extends FlexiRoute[T,
> FanOutShape2[T, T, T]](
> new FanOutShape2("SplitRoute"), OperationAttributes.name("SplitRoute"))
> { ... }
>
AFAIK there is a .named() convenience method that you can use on these
things (not in the class but when using the DSL). Also, you can import
OperationAttributes._, and then you can just call named("x") and ...
>
> A side-question, I'm not really sure why this is so, but when I have a
> Merge, I can just do:
>
> in ~> merge ~> out
>
> But when I have a FlexiMerge, I need to do:
>
> in ~> flexiMerge.in0
> flexiMerge.out ~> out
>
> it seems Merge's shape is also an Inlet, but I can't find that in the code
> :)
>
No, Merge has a shape of UniformFanIn. The sugared version of connecting
merge/broadcast only works because the DSL understands UniformFanin/Fanout
shapes, but it does not know about other shapes, since they can have
different types for each port (inlet/outlet).
-Endre
>
> --
> Thanks,
> Adam
>
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