definition declaration definition AttributeObserver(AttributeDependentMatch *,const string &) definition declaration AttributeObserver(AttributeMatch *) definition declaration AttributeObserver(Entity *,const string &) definition declaration attributeChanged(const Element &) definition declaration definition declaration observeEntity(Entity *) definition declaration ~AttributeObserver() definition declaration AttributeObserver AttributeDependentMatch true false pass by reference pass by reference AttrChangedSlot true true has by value has by value AttributeDependentMatch true false pass by reference pass by reference has by reference AttributeMatch true false pass by reference pass by reference Element true false pass by reference pass by reference pass by reference pass by reference Entity true false pass by reference pass by reference pass by reference pass by reference signal true true has by value string true true pass by reference pass by reference has by value pass by reference pass by reference trackable true true inheritance inheritance