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Drafting as of Oct 25, 2016

TransitionDirector preconditions feature specification


A transition can register certain pre-conditions. If any pre-condition fails, the director will not be selected for use in the transition.

Preconditions API: Provide an API for returning preconditions.

Example pseudo-code:

TransitionDirector {
  preconditions() -> [Precondition] {
    return [Precondition({
      return elementExists