[gef-dev] GEF4 Graph design

[Greg Watson <g.watson@xxxxxxxxxxxx>]

Hi,

The Node and Edge (and Graph) classes are declared final. However some methods (e.g. getAllIncomingEdges()) return Set<? extends …>. However, since the classes are final, it’s no possible to subclass them (although it would be nice to be able to), so what is the point of using “extends…”?

Thanks,
Greg