class Application {
  List<Parameter> params;
}

class Parameter {
  String name;
  Object intValue;
  Object value;
  String categorie;
}

Thank you for the answer. I hope you understand my bad english

I have a collections of parameter (class with four fileds: name ==> string , initValue ==> Object, value ==> Object and categorie ==> String). the Parameter are provided by my application

usecase: The ability to bind the parameter value (parametername = "p") with Widget Property (p.value <===> Widget Property ) . if something happens to my widget, for example when changing the text or selection or background rate, the p.value will change. if the parameter (p.value) change the widget property change