@Override public Set<E> edgesConnecting(EndpointPair<N> endpoints) { validateEndpoints(endpoints); return edgesConnecting(endpoints.nodeU(), endpoints.nodeV()); }
@Override public Optional<E> edgeConnecting(EndpointPair<N> endpoints) { validateEndpoints(endpoints); return edgeConnecting(endpoints.nodeU(), endpoints.nodeV()); }
@Override public @Nullable E edgeConnectingOrNull(EndpointPair<N> endpoints) { validateEndpoints(endpoints); return edgeConnectingOrNull(endpoints.nodeU(), endpoints.nodeV()); }