public Collection<V> getOutwardEdgeVertices(V vertex) {
    Collection<V> outwardEdgeVerticesForVertex =  outwardEdgeVertices.get(vertex);
    return outwardEdgeVerticesForVertex != null ? outwardEdgeVerticesForVertex : Collections.<V>emptySet();
  }
public Collection<V> getOutwardEdgeVertices(V vertex) {
    Collection<V> outwardEdgeVerticesForVertex =  outwardEdgeVertices.get(vertex);
    return outwardEdgeVerticesForVertex != null ? outwardEdgeVerticesForVertex : Collections.<V>emptySet();
  }
public Collection < V > getOutwardEdgeVertices ( V vertex ) { Collection < V > outwardEdgeVerticesForVertex = outwardEdgeVertices . get ( vertex ) ; return outwardEdgeVerticesForVertex != null ? outwardEdgeVerticesForVertex : Collections . < V > emptySet ( ) ; }
Returns the outward flowing edge vertices.
@param vertex vertex
@return the outward flowing edge vertices.
Returns the outward flowing edge vertices .