gistfile1.txt

Role('JooseX.Class.Triggered', {
    stem : {
      have : {
        attributesMC : Class({
            isa : Joose.Managed.StemElement.Attributes,
            
            propertyMetaClass : Class({
                isa : Joose.Managed.Attribute,
                does : JooseX.Attribute.Trigger
            })
        }) 
      }
    }
})



Class('BaseClass', {
    trait : JooseX.Class.Triggered,
    
    has : {
        attr : {
            trigger : function () {}
        }
    }
})


Class('SuperClass', {
  isa : BaseClass //no need for trait here - metaclasses are inherited by default
})