Description Jens Lideström 2020-09-19 16:06:04 EDT

A rather common task is to get the value of an observable that belongs to another realm.

To do this users have to go through an awkward manoeuvre involving a box which is assigned to from a runnable. Example:

IObservableValue<String> o = ...
AtomicReference<String> ref = new AtomicReference<>();
o.getRealm(()  -> ref.set(o.getValue));
String s = ref.get();

We should add a method on Realm that helps with this task, so the code above can be written as follows:

IObservableValue<String> o = ...
String s = o.getRealm().execAndGet(o::getValue);