SDK: Handling of empty lists

[r3to]

Elements that have cardinality 0:* can both be represented as Nullable-Lists or Lists that could be empty.

→ Define a common approach here

var a) Nullable Lists

• have to be unwrapped and checked for !isEmpty in order to find out, if there is something inside

var b) Empty Lists

• don't have to be unwrapped
• check for !isEmpty to find out if there is something in it

[vasile]

I am in favor of b) for simplicity but also for data model readability

[r3to]

same here

[terencebls]

I'm also for b :)

[r3to]

Closing with decision for b)