public boolean isEmpty(){
  return (tag == null || tag.isEmpty()) && images.size() == 0;
}

public boolean isEmpty ( ) { return ( tag == null || tag . isEmpty ( ) ) && images . size ( ) == 0 ; }
determines whether the tag has no fields specified . < br > < p > if there are no images we return empty if either there is no vorbistag or if there is a vorbistag but it is empty
