Re: [jgrapht-users] request for general edges

[Hans-Martin A. <dr...@go...>]

Thanks for the quick reply. I had overlooked that method signature. That
solves my problem.

Very nice indeed!

Regards
Hans-Martin Adorf

On Wed, Dec 29, 2010 at 8:51 PM, John Sichi <js...@gm...> wrote:

> Such a method already exists.
>
> http://www.jgrapht.org/javadoc/org/jgrapht/Graph.html#addEdge(V<http://www.jgrapht.org/javadoc/org/jgrapht/Graph.html#addEdge%28V>,
> V, E)
>
> JVS
>
> On Wed, Dec 29, 2010 at 11:25 AM, Hans-Martin Adorf
> <dr...@go...> wrote:
> > Folks,
> >
> > today I explored JGraphT. The design allows me to use any Vertex object
> that
> > pleases me. I chose to define a class Vertex as
> >
> > public class Vertex<V> {
> >     private final V payload;
> >     public Vertex(V payload) {
> >         this.payload = payload;
> >     }
> >     public V getObject() {
> >         return payload;
> >     }
> >     @Override
> >     public String toString() {
> >         return payload.toString();
> >     }
> > }
> >
> > I would like to do the same for the edge. However, the design of JGraphT
> > does not permit a design where I have full control over the edge. I
> consider
> > this to be a design flaw. I should like to be able to use an edge that
> has a
> > name, or in general a payload object.
> >
> > This could be achieved, if there were a method
> >
> > graph.addEdge(Edge edge)
> >
> > Edge would have to be an interface with two methods getSource() und
> > getTarget().
> >
> > Is there anything that stands in the way of such a design change? Why
> does
> > JGraphT have to have control over the constructor of my edge?
> >
> > Thanks.
> > Dr. Hans-Martin Adorf
> >
> >
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