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getHome().addFurnitureListener(new CollectionListener<HomePieceOfFurniture>(){
  void collectionChanged(CollectionEvent<HomePieceOfFurniture> ev){
    //check whether it is a ADD action
    //get the newly added item (which should de a HomePieceOfFurniture)
    //here, either remove your listener (in which case you should not
    //use a anonymous listener like here)
    //or check whether it is your class or not
    //if it is your class, end(remember to add your listener if you
    //previously removed it)
    //otherwise, create your own object from the newly added HomePieceOfFurniture
    //add it to the Home
  }
}